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Effects of Different Climates and Soil Environments in the Yanshan Production Area on the Growth and Quality of Chestnuts
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作者 Jiaqing WU Haie ZHANG Jingzheng ZHANG 《Agricultural Biotechnology》 2024年第2期81-87,共7页
[Objectives] This study conducted investigations on the climate and soil nutrients of different chestnut orchards in the Yanshan region, selected key ecological factors affecting the growth and fruit quality of chestn... [Objectives] This study conducted investigations on the climate and soil nutrients of different chestnut orchards in the Yanshan region, selected key ecological factors affecting the growth and fruit quality of chestnuts, and provided a theoretical basis for the cultivation, introduction, and scientific planting of high-quality chestnuts. [Methods] The ‘Yanshanzaofeng’ chestnuts in four orchards located in Qianxi, Qianan, Funing, and Qinglong of Hebei Science and Technology Normal University were selected. The climate and soil nutrient conditions of the four orchards were investigated. Growth indicators such as branch length and diameter, nut weight, and internal quality indicators such as starch, fat, and protein content were analyzed. Principal component analysis was conducted on nine climate factors and twelve soil factors in the four chestnut orchards to identify the most closely related ecological factors influencing chestnut growth and quality. [Results] (i) Different orchards had varying climate conditions, with Qianan orchard having higher rainfall than the others, Funing orchard having the highest number of sunshine hours in the growing season, and Qinglong orchard experiencing the greatest temperature difference during the growing season. (ii) Significant differences were found in soil nutrient content among the orchards, with the coefficient of variation for organic matter and mineral elements ranging from 19.1% (S) to 80.3% (available phosphorus). (iii) The main ecological factor influencing chestnut growth was the photosynthetic factor, while fruit quality was influenced by a combination of climatic factors, photosynthetic factors, and nutrient factors. Key ecological factor indicators included: annual precipitation, annual sunshine hours, growing season precipitation, growing season sunshine hours, soil organic matter, available phosphorus, available potassium, alkali nitrogen, copper, zinc, available boron, and sulfur. Soluble solids were significantly positively correlated with growing season sunshine hours, and fat was significantly positively correlated with available potassium and alkali nitrogen, and significantly positively correlated with available phosphorus. [Conclusions] Orchards with high growing season precipitation, long sunshine hours, and high organic matter and nitrogen-phosphorus-potassium content in the soil are more conducive to promoting the growth of ‘Yanshanzaofeng’ chestnuts and improving fruit quality. 展开更多
关键词 CHESTNUT Ecological factors Fruit quality Principal component analysis
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Chestnuts
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作者 Ji Xiaokang 《China's Foreign Trade》 1995年第3期53-53,共1页
Chestnuts are a kind of nut and are popular with all ages. When you pass food shops in Beijing in autumn or winter, a sweet and warm smell meals the nostrils. It makes the mouth water and one cannot help buying a bag ... Chestnuts are a kind of nut and are popular with all ages. When you pass food shops in Beijing in autumn or winter, a sweet and warm smell meals the nostrils. It makes the mouth water and one cannot help buying a bag of chestnuts, roasted in sand with brown sugar. It is no exaggeration to say that chestnuts are the king of nuts. China has a long history of chestnut cultivation. A chestnut fossil was 展开更多
关键词 chestnuts
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Melatonin maintains the storage quality of fresh-cut Chinese water chestnuts by regulating phenolic and reactive oxygen species metabolism 被引量:1
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作者 Yuhan Xu Jian Yu +7 位作者 Jinhui Chen Jiabao Gong Li Peng Yang Yi Youwei Ai Wenfu Hou Hongxun Wang Ting Min 《Food Quality and Safety》 SCIE CSCD 2022年第2期192-200,共9页
Fresh-cut Chinese water chestnuts(CWCs)are prone to quality deterioration during storage,which does not meet consumer demand.In this study,the effect of exogenous melatonin(5 mmol·L^(-1))on the quality and potent... Fresh-cut Chinese water chestnuts(CWCs)are prone to quality deterioration during storage,which does not meet consumer demand.In this study,the effect of exogenous melatonin(5 mmol·L^(-1))on the quality and potential mechanisms in fresh-cut CWC was investigated.The results showed that melatonin treatment alleviated the cut-surface discoloration of CWCs.Not only did this treatment significantly slow down the in-crease in browning degree and yellowness(b*)as well as the decrease in lightness(L*),but it also significantly delayed the loss of weight and total soluble solids.Further investigations indicated that melatonin-treated fresh-cut CWCs exhibited significantly lower total phenolics and soluble quinones and suppressed the activities of phenylalanine ammonia-lyase,polyphenol oxidase,and peroxidase.Meanwhile,when fresh-cut CWCs were treated with melatonin,the total flavonoid concentration was significantly decreased compared to the control.Ad ditionally,melatonin significantly inhibited the accumulation of H_(2)O_(2)and malondialdehyde as well as enhanced the activities of superoxide dismutase and catalase by promoting the production of O_(2)^(-·).In summary,melatonin treatment may delay the surface discoloration of fresh-cut CWCs by inhibiting phenolic compound metabolism and improving antioxidant capacity,thereby effectively maintaining the quality and prolonging the shelf life of fresh-cut CWCs. 展开更多
关键词 Fresh-cut Chinese water chestnut MELATONIN storage quality phenolic metabolism reactive oxygen species metabolism
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Development of Fenghuang Dancong Tea and Chestnut Sauce
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作者 Wanchan QIU Peidan LAI +2 位作者 Ziqi PENG Yanbin WU Heng PENG 《Asian Agricultural Research》 2024年第6期41-44,共4页
To produce Fenghuang Dancong tea and chestnut sauce that is more in line with people s health needs and has better flavor,the dosage of tea,tea powder,white sugar and milk was analyzed,and the optimal formula of Fengh... To produce Fenghuang Dancong tea and chestnut sauce that is more in line with people s health needs and has better flavor,the dosage of tea,tea powder,white sugar and milk was analyzed,and the optimal formula of Fenghuang Dancong tea and chestnut sauce was studied through a single factor experiment and orthogonal experiment.The results showed that the best formula of Fenghuang Dancong tea and chestnut sauce was composed of 4.5 g of tea,1.5 g of tea powder,60 g of milk and 5 g of white sugar.The Fenghuang Dancong tea and chestnut sauce made under these conditions was light brown,and had suitable viscosity,delicate and rich taste.It had the fragrance of Fenghuang Dancong tea and the sweet aroma of chestnuts. 展开更多
关键词 Fenghuang Dancong TEA chestnuts SAUCE FORMULA optimization SENSORY evaluation
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Insight into the effect of geographic location and intercropping on contamination characteristics and exposure risk of phthalate esters(PAEs)in tea plantation soils
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作者 Jie Li Shanjie Han +4 位作者 Ruhang Xu Xuchen Zhang Junquan Liang Mengxin Wang Baoyu Han 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第11期3896-3911,共16页
Phthalate esters(PAEs)are an emerging pollutant due to widespread distribution in environmental mediums that have attracted widespread attention over recent years.However,there is little information about tea plantati... Phthalate esters(PAEs)are an emerging pollutant due to widespread distribution in environmental mediums that have attracted widespread attention over recent years.However,there is little information about tea plantation soil PAEs.A total of 270 soil samples collected from 45 tea plantations in the major high-quality tea-producing regions of Jiangsu,Zhejiang,and Anhui provinces in China were analyzed for seven PAEs.The detection frequency of PAEs in tea plantation soil was 100%.DBP,DEHP,and DiBP were the main congeners in tea plantation soil.The PAEs concentrations in the upper soil were significantly higher than those in the lower soil.The concentration of tea plantation soil PAEs in Jiangsu Province was significantly lower than those in Zhejiang and Anhui provinces.Intercropping with chestnuts can effectively reduce the contamination level of PAEs in tea plantation soil.Correlation analysis,redundancy analysis,partial correlation analysis,and structural equation modeling methods further confirmed the strong direct influence of factors such as chestnut–tea intercropping,temperature,and agricultural chemicals on the variation of PAEs in tea plantation soil.The health and ecological risk assessments indicated that non-carcinogenic risk was within a safe range and that there was a high carcinogenic risk via the dietary pathway,with DBP posing the highest ecological risk. 展开更多
关键词 phthalate esters chestnut and tea INTERCROPPING driving factors spatial heterogeneity risk assessment
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Control Techniques of Chinese Chestnut Yellow Crinkle
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作者 Shuhang ZHANG Yongbin XIONG Liying FAN 《Plant Diseases and Pests》 2024年第3期12-13,共2页
This paper initially delineates the symptoms,characteristics,and hazards associated with Chinese chestnut yellow crinkle,as well as the transmission and infection pathways of the disease.Additionally,it proposes the p... This paper initially delineates the symptoms,characteristics,and hazards associated with Chinese chestnut yellow crinkle,as well as the transmission and infection pathways of the disease.Additionally,it proposes the prevention and control strategies of the disease,including rigorous investigation and monitoring of the disease,enhanced monitoring of seedlings and scions,and integrated disease management techniques to promote the tree s health and vitality.These strategies serve to inform the prevention and control of Chinese chestnut yellow crinkle in production. 展开更多
关键词 CHESTNUT Chinese chestnut yellow crinkle SYMPTOM Prevention and control
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Study on the Photosynthetic Characteristics of Six Varieties(Strains)in Chinese Chestnut
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作者 Lizhi FU Yong YANG +6 位作者 Xiaoxiao KANG Meng WANG Jing LIU Xuan WANG Dongsheng WANG Liyang YU Hai’e ZHANG 《Agricultural Biotechnology》 2024年第1期9-14,57,共7页
[Objectives]This study was conducted to investigate the differences of photosynthetic physiological characteristics of different varieties(strains),which will provide a theoretical basis for high photosynthesis effici... [Objectives]This study was conducted to investigate the differences of photosynthetic physiological characteristics of different varieties(strains),which will provide a theoretical basis for high photosynthesis efficiency breeding and application in Chinese chestnut.[Methods]Six Chinese chestnut varieties of Castanea mollissima‘Yanbao’,C.mollissima‘Yanqiu’,C.mollissima‘Yanchang’,C.mollissima‘Yanjia’,C.mollissima‘Qianxi 37’,and C.mollissima‘Hybrid 22’were used as the materials.Using the portable photosynthesis system Li-6400,we measured the photosynthetic characteristics and diurnal variation of leaf samples of six different chestnut varieties or strains.We fitted the light response curves and photosynthetic parameters using the leaf floating model.Additionally,we determined the chlorophyll content in the leaves using a UV-visible spectrophotometer.[Results]Among the six chestnut varieties or strains,‘Yanqiu’exhibited a significantly higher photosynthetic light saturation point(P LSP)compared to other five varieties,and‘Hybrid 22’ranked second,indicating that these two varieties had the strongest adaptation to high light intensity.The photosynthetic light compensation point(P LCP)of‘Yanchang’was significantly higher than other five varieties,and"Qianxi 37"ranked second,indicating that these two varieties had the strongest adaptation to low light intensity.Additionally,they exhibited higher chlorophyll content and maintained good photosynthetic characteristics even in shaded environments with weak light stress.Varieties‘Yanbao’and‘Yanjia’showed higher P LSP and lower P LCP,indicating that these two varieties have a wider range of adaptation to light intensity.They were capable of efficiently utilizing light across a broader spectrum of intensities.‘Yanqiu’had the highest maximum net photosynthetic rate(P n,max)and the lowest dark respiration rate(R d),along with the highest chlorophyll content.It indicated that‘Yanqiu’has strong photosynthetic capacity and organic matter accumulation ability.It also had the highest P LSP,enabling it to fully utilize the high light environment of the Yanshan Mountains and possessed high light efficiency characteristics.The P n,max of‘Yanqiu’was significantly higher than other varieties.‘Hybrid 22’and‘Yanbao’also exhibited significantly higher P n,max compared with‘Yanjia’and‘Qianxi 37’.‘Yanchang’had the lowest P n,max.The order of P n,max among the six chestnut varieties or strains was as follows:‘Yanqiu’>‘Hybrid 22’>‘Yanbao’>‘Yanjia’>‘Qianxi 37’>‘Yanchang’.[Conclusions] 展开更多
关键词 Chinese chestnut Diurnal variation of photosynthesis Light response model Light response curve CHLOROPHYLL
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Research and Application of Compressed Fermented Chestnut Leaf Feed in Fattening Mutton Sheep
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作者 Lei WANG Xiaoyan LI +9 位作者 Rundong QIANG Yu ZHOU Huihui CAO Shengyu SU Kaixuan ZHANG Changli WANG Hengzhi REN Daxin CHAI Yuli WANG Zhongkuan LIU 《Agricultural Biotechnology》 2024年第4期28-30,37,共4页
Chestnut leaves and bran were evenly mixed according to different mass ratios,and the mixtures were sprayed and inoculated with a certain amount of prepared EM microbial liquid,and then compressed into 70 cm×40 c... Chestnut leaves and bran were evenly mixed according to different mass ratios,and the mixtures were sprayed and inoculated with a certain amount of prepared EM microbial liquid,and then compressed into 70 cm×40 cm×30 cm blocks by a fully automatic yellow-storage block compression and packaging machine.The obtained blocks were packaged and sealed with plastic film,and placed in a freely ventilated place for more than 15 d of anaerobic fermentation,so as to obtain compressed fermented chestnut leaf block feed.[Results]Through the detection and analysis of nutritional components in the compressed fermented chestnut leaf block feed in the laboratory,the protein content was equal to or greater than 10.2%,which was 44.68%higher than that of unfermented chestnut leaf feed;the tannin content was equal to or greater than 638 mg/kg,which was 18.41%lower than that of the original feed;and the crude fiber content was equal to or greater than 19.5%,which was 14.09%lower than that of the original feed.[Conclusions]This study improves the palatability of chestnut leaf feed,increases the use efficiency of feed and reduces feeding cost.It is worth popularizing. 展开更多
关键词 EM microbial liquid Chestnut leaf Compressed fermentation Fattening of mutton sheep
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Research on Genetic Diversities between Xiaogan Water Chestnut and Wild Chestnut by Randomly Amplified Polymorphic DNA Technology 被引量:3
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作者 盛继群 曹姣 李建华 《Agricultural Science & Technology》 CAS 2010年第8期84-86,90,共4页
[Objective] The aim was to study the genetic diversities between Xiaogan water chestnut and wild chestnut with randomly amplified polymorphic DNA (RAPD) technology. [Method] Genetic diversities of the local cultivat... [Objective] The aim was to study the genetic diversities between Xiaogan water chestnut and wild chestnut with randomly amplified polymorphic DNA (RAPD) technology. [Method] Genetic diversities of the local cultivated water chestnut,wild chestnut,Lepironia articulata and Scirpus planiculmis Fr. Schmidt were analyzed by RAPD technology. [Result] Among the screened random primers 841,842,807 and 840,the polymorphism of amplification product of 841 was evident,and the obtained bands in electrophoresis were clear and showed good repeatability. Cluster analysis result showed that the affinity of cultivated water chestnut and wild water chestnut was nearer than that between Lepironia articulata and Scirpus planiculmis. [Conclusion] The research provides theoretical basis for cultivating high-quality new varieties of water chestnut. 展开更多
关键词 Water chestnut RAPD Cluster analysis Genetic diversities
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欧美药用植物(三) 被引量:1
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作者 王鸣 袁昌齐 赵友谊 《中国野生植物资源》 2003年第6期96-97,共2页
关键词 欧洲 北美洲 南美洲 药用植物 欧洲七叶树 HORSE CHESTNUT 芦荟 积雪草 毛喉鞘蕊花
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Effect of Exogenous Sodium Hydrosulfide Mitigating Salt Stress on Chestnut (Castanea mollissima) Seedlings
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作者 孙晓莉 姜倩倩 +2 位作者 田寿乐 沈广宁 许林 《Agricultural Science & Technology》 CAS 2017年第6期1058-1061,共4页
This study was conducted to investigate the alleviating effect of exogenous hydrogen sulfide on chestnut seedlings under salt stress. The effects of different concentrations of (0, 0.1, 0.2, 0.5, 1.0 and 2.0 mmol/L)... This study was conducted to investigate the alleviating effect of exogenous hydrogen sulfide on chestnut seedlings under salt stress. The effects of different concentrations of (0, 0.1, 0.2, 0.5, 1.0 and 2.0 mmol/L) sodium hydrosulfide (NariS) on the photosynthesis of 'Hongli 2' chestnut seedlings and the chlorophyll content, proline content and malondialdehyde (MDA) content in chestnut leaves under 100 mM NaCI stress were investigated. According to the results, spraying exogenous NariS had positive effects on photosynthesis of chestnut leaves. The application of NariS could alleviate the damage caused by salt stress on the leaves of chestnut seedlings to different degrees. Compared with the sole treatment with 100 mmol/L NaCI, the chlorophyll content and the proline content were improved. Moreover, MDA content had a significant drop, which effectively reduced the damage of cell membrane under salt stress, The alleviating effect was not obvious with the in- crease of treatment concentration, and the 0.5 and 1.0 mmol/L NariS treatments exhibited better effects. 展开更多
关键词 CHESTNUT Sodium hydrosulfide Salt stress Alleviating effect
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用快中子对燕山板栗辐射育种的研究
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作者 张荫芬 蓝李桥 +3 位作者 周瑞英 杜绍权 韩光明 周锡侯 《北京师范大学学报(自然科学版)》 CAS 1988年第3期91-92,共2页
燕山板栗是我国名产,又是重要出口商品.历史上多为实生繁殖,果实性状良莠不齐,产量低,易感染种实霉烂病,影响商品价值.为了选育矮化、抗病、优质和丰产新品种,1976年我们与沙峪乡合作对板栗进行快中子辐射育种的研究.经过11年的工作,已... 燕山板栗是我国名产,又是重要出口商品.历史上多为实生繁殖,果实性状良莠不齐,产量低,易感染种实霉烂病,影响商品价值.为了选育矮化、抗病、优质和丰产新品种,1976年我们与沙峪乡合作对板栗进行快中子辐射育种的研究.经过11年的工作,已育成辐射76-6的3个优良品系,经繁殖和试种总产量平均提高40%,经济效益显著.该成果于1987年11月通过市级鉴定. 展开更多
关键词 Yanshan HAIRY CHESTNUT fast neutron radiation breed.
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Flowering Habits and Seed Setting Traits under Artificial Pollination in Chinese Water Chestnut(Eleocharis dulcis)
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作者 欧昆鹏 王艳 +4 位作者 何芳练 江文 高美萍 陈丽娟 曾媛 《Agricultural Science & Technology》 CAS 2016年第6期1359-1362,共4页
[Objective] This study was conducted to investigate the crossbreeding method for Chinese water chestnut. [Method] The growth of Chinese water chestnut stalk and inflorescence was observed. Chinese water chestnut flowe... [Objective] This study was conducted to investigate the crossbreeding method for Chinese water chestnut. [Method] The growth of Chinese water chestnut stalk and inflorescence was observed. Chinese water chestnut flowering law and stamen and pistil growth were investigated in an artificial pollination experiment. [Result] Stamens and pistils reached their full bloom stages when the flower stalk lengths were approximate 37.0 and 46.9 cm, respectively, with a height difference of 9.84 cm and time difference of 28.5 h; and 9:00-11:00 a.m. was the optimal period for artificial pollination. Seven hours after artificial pollination, pistils wilted rapidly. The seed setting rates under artificial pollination and a natural condition was 43% and 15.5%, respectively. [Conclusion} The time difference between the full bloom stages of stamens and pistils is crucial to the success of artificial pollination of Chinese water chestnut. The seed setting rate under artificial pollination is much higher than that under a natural condition. 展开更多
关键词 Chinese water chestnut HYBRIDIZATION BREEDING Bisexual flower
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Research on Liquefaction Technology of Chestnut Shells
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作者 梁丽珍 牛俊玲 +1 位作者 兰彦平 王杰 《Agricultural Science & Technology》 CAS 2011年第8期1170-1173,共4页
[Objective]This paper aimed at studying the liquefaction technology of chestnut shells [Method]Effects on chestnut shells liquefaction of six catalysts were studied,which were sodium hydroxide,sodium carbonate,acetic ... [Objective]This paper aimed at studying the liquefaction technology of chestnut shells [Method]Effects on chestnut shells liquefaction of six catalysts were studied,which were sodium hydroxide,sodium carbonate,acetic acid(99.5%),phosphoric acid(85%),hydrochloric acid(37%),sulfuric acid(98%).The research had analyzed the liquefaction effects of chestnut shells in presence of phenol and at liquefaction temperatures of 130,150 and 170 ℃,in which the proportion of added quantities of concentrated sulfuric acid,phosphoric acid,concentrated hydrochloric acid to phenol were 1%-6%.Properties of phenolic resin made from formaldehyde and phenol-liquefied products of chestnut shells catalyzed by concentrated sulfuric acid with an added amount of 4% at 150 ℃(WPF)were analyzed and compared with traditional phenolic formaldehyde resin(PF).[Result]Acid catalysts were better than alkaline ones in the phenol-liquefaction of chestnut shells,and the liquefaction ratio increased with the increasing of acidic intensity.The liquefaction ratio had attained the maximum as 92.11 % when catalyzed by concentrated sulfuric acid with an added amount of 4% at 150 ℃.The phenolic resin made from the liquefied products of chestnut shells was basically in accordance with the standard of GB/T 14732-93 when the mass ratio of chestnut shells powders to phenol was 1∶3.[Conclusion]It was possible to produce phenolic resin with liquefied chestnut shells. 展开更多
关键词 CATALYSTS Chestnut shells LIQUEFACTION
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Optimization of Microwave Extraction of Flavonoids from Water Chestnut Skin Dregs with Response Surface Method
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作者 黄利华 《Agricultural Science & Technology》 CAS 2015年第1期187-191,共5页
[Objective] In order to take full advantage of processing by-product of water chestnut, the microwave extraction method of flavonoids from water chestnut skin dregs was optimized. The extracted flavonoids had a relati... [Objective] In order to take full advantage of processing by-product of water chestnut, the microwave extraction method of flavonoids from water chestnut skin dregs was optimized. The extracted flavonoids had a relatively high yield. [Method] The Box-Behnken design-based response surface method was adopted to optimize the microwave extraction of flavonoids from water chestnut skin dregs, a by-product of water chestnut starch. The mathematical relationships between various influencing factors and flavonoids yield were established. [Result] The optimum extraction conditions of flavonoids from water chestnut skin dregs were as follows: ethanol concentration of 55.4%, solid/liquid ratio of 1:30 g/ml, microwave power of 320 W, microwave time of 3 min and microwave time of 2 times. Under the optimum extraction conditions, the theoretical flavonoids yield was 2.376%. However, the actual flavonoids yield under the optimum extraction conditions was 2.365%. The relative error between actual values and theoretically predicted values was 0.461%. [Conclusion] The results showed the optimized extraction method is reliable, and it can provide a reference for the comprehensive and highly efficient utilization of water chestnut processing wastes. 展开更多
关键词 Water chestnut skin dregs FLAVONOIDS Response surface methodology (RSM) MICROWAVE
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Chestnut 产科麻醉学:原理与实践(第5版)
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作者 张砡 《协和医学杂志》 2015年第3期196-196,共1页
产科麻醉学是麻醉学的重要亚专业,一直以来备受重视。自20年前《Chestnut产科麻醉学》第1版发表到如今第5版面世的过程中,作者一直秉承着两个目标:为产科麻醉医师提供产科最重要的知识;为产妇及产科患者提供关于产科麻醉详细易懂的介绍。
关键词 产科麻醉 CHESTNUT Cynthia 亚专业 剖宫产麻醉 分娩镇痛 麻醉学 Lawrence 麻醉相 阴道分娩
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Biological Characters and Occurrence Conditions of a New Pest Tegra novaehollandiae viridinotata on Chestnut 被引量:3
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作者 练飞 佘德松 冯福娟 《Agricultural Science & Technology》 CAS 2008年第6期151-153,共3页
[Objective] The study aimed to explore the occurrence conditions of Tegra novaehollandiae viridinotata on chestnut.[Method] Life history was observed by the combination of indoor-rearing and field observation,as well ... [Objective] The study aimed to explore the occurrence conditions of Tegra novaehollandiae viridinotata on chestnut.[Method] Life history was observed by the combination of indoor-rearing and field observation,as well as the relationship between occurrence and surroundings in field.[Result] T.novaehollandiae viridinotata has one generation each year in Yunhe County,Zhejiang Province,and overwinters by laying eggs in chestnut trunk with diameter of 5.0 cm.Adults and the nymphs feed on Glochidion puberum leaves,adults damage trunks of young chestnut by oviposition.Nymphs hatch in early April,adults moult in last June and lay eggs in middle July.[Conclusion] T.novaehollandiae viridinotata could be controlled by eliminating shrubs such asGlochidion puberum.,cutting the eggs in dormancy by an knife,spraying pesticides in middle April or June and July,coating stem in winter etc. 展开更多
关键词 CHESTNUT TEGRA novaehollandiae viridinotata LIFE HISTORY OCCURRENCE CONDITIONS Control
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Effect of the Inclusion of Chestnut in the Finishing Diet on Volatile Compounds of Dry-Cured Ham from Celta Pig Breed 被引量:23
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作者 José M Lorenzo Javier Carballo Daniel Franco 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2013年第11期2002-2012,共11页
The effect of the inclusion of chestnut in pigs ifnishing diet on volatile compounds of dry-cured Celta ham was studied. Twelve hams of each type (from three different pigs ifnishing diets:concentrate (CO), mixed ... The effect of the inclusion of chestnut in pigs ifnishing diet on volatile compounds of dry-cured Celta ham was studied. Twelve hams of each type (from three different pigs ifnishing diets:concentrate (CO), mixed (MI) and chestnut (CH)) were used. Volatiles were extracted using a purge-and-trap method and analyzed by gas chromatography/mass spectrometry (GC/MS). Thirty-nine volatile compounds were identified in dry-cured Celta ham samples. Most abundant volatiles in ham samples were aldehydes, which represented respectively, 53% (CO), 51% (MI) and 46% (CH) of the total volatile composition. With the exception of 2-butenal, 2-methyl, all aldehydes were affected by feeding system. On the other hand, hydrocarbons n-alkanes were the second major group in the volatile proifle of dry-cured Celta hams and represented 28.9, 35.7 and 32.4%of the total volatile composition for CO, MI and CH groups, respectively. Ham samples from chestnut group showed a higher content of alcohols and this result could be related with the inclusion of chestnut in the ifnishing diet of pigs. Principal component analysis showed a good separation among groups. The discriminant analysis selected eight variables (butanoic acid, hexanal, octanal, nonenal (E), decenal (E), tetradecane, decane trimethyl and pyridine 2-methyl) and calculated two discriminating functions to predict if chestnut has been included in the ifnishing diet. Thus, it was possible to discriminate between groups fed with ifnishing diets containing chestnuts in their composition (mixed and chestnut group). 展开更多
关键词 dry-cured ham CHESTNUT volatile compound finishing diet discriminant analysis
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Impact of fertilization on chestnut growth, N and P concentrations in runoff water on degraded slope land in South China 被引量:8
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作者 ZENG Shu-cai CHEN Bei-guang +1 位作者 JIANG Cheng-ai WU Qi-tang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2007年第7期827-833,共7页
Growing fruit trees on the slopes of rolling hills in South China was causing serious environmental problems because of heavy application of chemical fertilizers and soil erosion. Suitable sources of fertilizers and p... Growing fruit trees on the slopes of rolling hills in South China was causing serious environmental problems because of heavy application of chemical fertilizers and soil erosion. Suitable sources of fertilizers and proper rates of applications were of key importance to both crop yields and environmental protection. In this article, the impact of four fertilizers, i.e., inorganic compound fertilizer, organic compound fertilizer, pig manure compost, and peanut cake (peanut oil pressing residue), on chestnut (Castanea mollissima Blume) growth on a slope in South China, and on the total N and total P concentrations in runoff waters have been investigated during two years of study, with an orthogonal experimental design. Results show that the organic compound fertilizer and peanut cake promote the heights of young chestnut trees compared to the control. In addition, peanut cake increases single-fruit weights and organic compound fertilizer raises single-seed weights. All the fertilizers increased the concentrations of total N and total P in runoff waters, except for organic compound fertilizer, in the first year experiment. The observed mean concentrations of total N varied from 1.6 mg/L to 3.2 mg/L and P from 0.12 mg/L to 0.22 mg/L, which were increased with the amount of fertilizer applications, with no pattern of direct proportion. On the basis of these experiment results, organic compound fertilizer at 2 kg/tree and peanut cake at 1 kg/tree are recommended to maximize chestnut growth and minimize water pollution. 展开更多
关键词 CHESTNUT FERTILIZATION N concentration P concentration runoff water South China
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The MADS-box transcription factor CmAGL11 modulates somatic embryogenesis in Chinese chestnut(Castanea mollissima Blume) 被引量:5
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作者 GAO Yue-rong SUN Jia-chen +5 位作者 SUN Zhi-lin XING Yu ZHANG Qing FANG Ke-feng CAO Qing-qin QIN Ling 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2020年第4期1033-1043,共11页
Somatic embryogenesis(SE)is an effective approach of in vitro regeneration that depends on plant cell totipotency.However,largely unknown of molecular mechanisms of SE in woody plants such as Chinese chestnut(Castanea... Somatic embryogenesis(SE)is an effective approach of in vitro regeneration that depends on plant cell totipotency.However,largely unknown of molecular mechanisms of SE in woody plants such as Chinese chestnut(Castanea mollissima Blume),limits the development of the woody plant industry.Here,we report the MADS-box transcription factor Cm AGL11 in Chinese chestnut.Cm AGL11 transcripts specifically accumulated in the globular embryo.Overexpression of Cm AGL11 in chestnut callus enhanced its SE capacity,and the development of somatic embryos occurred significantly faster than in the control.RNA-seq results showed that Cm AGL11 affects the expression of several genes related to the gibberellin,auxin,and ethylene pathways.Moreover,the analysis of DNA methylation status indicated that the promoter methylation plays a role in regulation of Cm AGL11 expression during SE.Our results demonstrated that Cm AGL11 plays an important role in the SE process in Chinese chestnut,possibly by regulating gibberellin,auxin,and ethylene pathways.It will help establish an efficient platform to accelerate genetic improvement and germplasm innovation in Chinese chestnut. 展开更多
关键词 Chinese CHESTNUT CmAGL11 SOMATIC EMBRYOGENESIS DNA METHYLATION
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