The annual musk production of captive alpine musk deer(Moschus chrysogaster)in Xinglongshan Musk Deer Farm(E103°50′-104°10′,N35°38′-58′), Gansu, from 1996 to 2007, were analyzed in this paper. The r...The annual musk production of captive alpine musk deer(Moschus chrysogaster)in Xinglongshan Musk Deer Farm(E103°50′-104°10′,N35°38′-58′), Gansu, from 1996 to 2007, were analyzed in this paper. The results showed that: (1) The average musk production from 507 individuals was 8.8 g, with the highest 22.6 g and lowest 1.0 g; (2) The musk production of 76.9% individuals was within the range of 5-15 g;(3)The average musk production from 1.5 year group was the highest 10.3 g among all age groups, which might have resulted from the well-breeding to the young;(4) The distribution of the annual musk production since 1998 appeared to be a typical wave-shaped curve; (5)The average musk production (8.8 g) was lower than those reported by the other farms, and the main cause was probably the unbalanced rations,and (6) The annual average musk production (above 12 g) and harvest times (above 7 times) of a few individuals were relatively high, and it was suggested that the breeding program of musk deer should be emphasized in the future.展开更多
To create the japonica germplasm with long grain and fragrance,we edited GS3 and OsBADH2 of a japonica rice cultivar Chunjiang 151 by using CRISPR/Cas9 system for multiplex genome editing.10 long-grain fragrant japoni...To create the japonica germplasm with long grain and fragrance,we edited GS3 and OsBADH2 of a japonica rice cultivar Chunjiang 151 by using CRISPR/Cas9 system for multiplex genome editing.10 long-grain fragrant japonica rice plants without transgenic components were obtained.Compared with those of Chunjiang 151,the grain length,thousand-grain weight,and yield per plant of the edited line increased 12.20%,18.45%,and 8.31%,respectively.We created the fragrant japonica rice line with improved grain length and yield,which enriched the germplasm resource of japonica rice and provided reference for the improvement of rice quality.展开更多
Most of the aromatic rice cultivars are susceptible to disease, insect-pest attack and are more prone to lodging. Therefore, nitrogen is the key input for increasing the productivity of aromatic rice. Research analyzi...Most of the aromatic rice cultivars are susceptible to disease, insect-pest attack and are more prone to lodging. Therefore, nitrogen is the key input for increasing the productivity of aromatic rice. Research analyzing the effects of N level on yield and quality characteristics of modem aromatic cultivars in the north-western Indo-Gangetic Plains is not well documented. Therefore, the present study was conducted to optimise the N levels for higher yield and better quality of the modem aromatic rice cultivars. The mean grain yield increased by 22.5% when plots were supplemented with 40 kg/ha of N application as compared to control （unfertilized）. Among cultivars, Punjab Mehak 1 registered highest yield （5.3 t/ha） followed by Pusa Basmati 1121 （4.78 t/ha） and Punjab Basmati 2 （4.66 t/ha） respectively. Interactive effect between N levels and cultivars on grain yield revealed that in Punjab Mehak l, grain yield responded significantly up to 60 kg/ha of N application as compared to Pusa Basmati 1121 and Punjab Basmati 2 where it responded only upto 40 kg/ha of N application. All the quality characteristic found to be improved with N application, whereas amylose content decreased with 60 kg/ha of N application as compared to 20 and 40 kg/ha of N application.展开更多
The effects of application of cassava alcohol anaerobic fermentation liquid and mulching of film on overwintering and next year's growth and yield of banana were investigated in this study.The results showed that ...The effects of application of cassava alcohol anaerobic fermentation liquid and mulching of film on overwintering and next year's growth and yield of banana were investigated in this study.The results showed that the application of cassava alcohol anaerobic fermentation liquid with COD concentration of 1 200-2 000 mg/L(900 m^3/hm^2) and mulching of film significantly increased the soil organic matter and available potassium contents in banana orchard,improved the cold resistance of banana seedlings,increased the pseudostem height,pseudostem circumference,green leaf number and chlorophyll content of next year's banana seedlings,brought the flower bud emergence period and harvest period forward,and significantly increased the yield per plant.展开更多
Research on selection of superior breeding infraspecies Gyrinops versteegii （Gilg） Domke aims to select an infraspecies of G. versteegii having internal factors that affect the quality and quantity of production aro...Research on selection of superior breeding infraspecies Gyrinops versteegii （Gilg） Domke aims to select an infraspecies of G. versteegii having internal factors that affect the quality and quantity of production aromatic resin or agarwood. The internal factors are variations in wood anatomy, phytochemicals and agarwood of infraspecies G. versteegii. Of five local populations taken from West Lombok Island in Indonesia, the research areas are geographically located at coordinates： 8°15′-8°40′ South Latitude and 116°00′-116°20′East Longitude. Quality and quantity of agarwood production is influenced by internal factors of eaglewood trees, such as high starch production and the size of the cells making up the larger wood tissue. Infraspecies G. versteegii that have quality and quantity production of aromatic resin （the best agarwood） is Beringin group and the highest quantity of agarwood production （agarwood formation on the whole organ） is Soyun group.展开更多
Medicinal plants provide an important source of cure since ancient time. Poor soil resources, scarce and saline water and the harsh environment limited the production of plants in the Arabian Gulf countries. This stud...Medicinal plants provide an important source of cure since ancient time. Poor soil resources, scarce and saline water and the harsh environment limited the production of plants in the Arabian Gulf countries. This study aimed to investigate the production potential of rosemary （Rosmarinus officinalis L.） grown on different growth media under greenhouse conditions. Three growth media agricultural soil, compost and hydroponic system were used, whereas tuff （inert volcanic material） was used as substrate. The result indicated that the high salinity of the agricultural soil limited growth and oil yield in rosemary. Shoot height increased in 11 weeks, by 62%, 65% and 114% in plants grown in agricultural soil, hydroponic system and compost, respectively. Na content in plants grown in agricultural soil was significantly higher than in plants grown in the other treatment. Essential oil yield in plants grown in compost exceeded those in agricultural soil by 114%. Essential oil content （0.66%-1.5% w/w） and chemical constituents concentrations did not change significantly with growth media. The main constituents, more or less, are comparable to essential oils constituents reported from other countries. In comparison, better yields are obtained for individual components of the oils of plants grown under our green house conditions. This study demonstrated the great potential of commercial production of rosemary in the greenhouse without compromising the oil quality and oil yield.展开更多
文摘The annual musk production of captive alpine musk deer(Moschus chrysogaster)in Xinglongshan Musk Deer Farm(E103°50′-104°10′,N35°38′-58′), Gansu, from 1996 to 2007, were analyzed in this paper. The results showed that: (1) The average musk production from 507 individuals was 8.8 g, with the highest 22.6 g and lowest 1.0 g; (2) The musk production of 76.9% individuals was within the range of 5-15 g;(3)The average musk production from 1.5 year group was the highest 10.3 g among all age groups, which might have resulted from the well-breeding to the young;(4) The distribution of the annual musk production since 1998 appeared to be a typical wave-shaped curve; (5)The average musk production (8.8 g) was lower than those reported by the other farms, and the main cause was probably the unbalanced rations,and (6) The annual average musk production (above 12 g) and harvest times (above 7 times) of a few individuals were relatively high, and it was suggested that the breeding program of musk deer should be emphasized in the future.
文摘To create the japonica germplasm with long grain and fragrance,we edited GS3 and OsBADH2 of a japonica rice cultivar Chunjiang 151 by using CRISPR/Cas9 system for multiplex genome editing.10 long-grain fragrant japonica rice plants without transgenic components were obtained.Compared with those of Chunjiang 151,the grain length,thousand-grain weight,and yield per plant of the edited line increased 12.20%,18.45%,and 8.31%,respectively.We created the fragrant japonica rice line with improved grain length and yield,which enriched the germplasm resource of japonica rice and provided reference for the improvement of rice quality.
文摘Most of the aromatic rice cultivars are susceptible to disease, insect-pest attack and are more prone to lodging. Therefore, nitrogen is the key input for increasing the productivity of aromatic rice. Research analyzing the effects of N level on yield and quality characteristics of modem aromatic cultivars in the north-western Indo-Gangetic Plains is not well documented. Therefore, the present study was conducted to optimise the N levels for higher yield and better quality of the modem aromatic rice cultivars. The mean grain yield increased by 22.5% when plots were supplemented with 40 kg/ha of N application as compared to control （unfertilized）. Among cultivars, Punjab Mehak 1 registered highest yield （5.3 t/ha） followed by Pusa Basmati 1121 （4.78 t/ha） and Punjab Basmati 2 （4.66 t/ha） respectively. Interactive effect between N levels and cultivars on grain yield revealed that in Punjab Mehak l, grain yield responded significantly up to 60 kg/ha of N application as compared to Pusa Basmati 1121 and Punjab Basmati 2 where it responded only upto 40 kg/ha of N application. All the quality characteristic found to be improved with N application, whereas amylose content decreased with 60 kg/ha of N application as compared to 20 and 40 kg/ha of N application.
基金Supported by National Natural Science Foundation of China(31260461)2013 Guiding Fund for Ecological Guangxi Construction+2 种基金Guangxi Scientific Research and Technological Development Project(GKH 1346011-19)Students’Experimental Skills and Scientific and Technological Innovation Ability Training Fund of Guangxi University(SYJN20131513)Earmarked Fund for Nanning Station of Banana in Guangxi of China Agriculture Research System(nycytxcxtd-04-18)
文摘The effects of application of cassava alcohol anaerobic fermentation liquid and mulching of film on overwintering and next year's growth and yield of banana were investigated in this study.The results showed that the application of cassava alcohol anaerobic fermentation liquid with COD concentration of 1 200-2 000 mg/L(900 m^3/hm^2) and mulching of film significantly increased the soil organic matter and available potassium contents in banana orchard,improved the cold resistance of banana seedlings,increased the pseudostem height,pseudostem circumference,green leaf number and chlorophyll content of next year's banana seedlings,brought the flower bud emergence period and harvest period forward,and significantly increased the yield per plant.
文摘Research on selection of superior breeding infraspecies Gyrinops versteegii （Gilg） Domke aims to select an infraspecies of G. versteegii having internal factors that affect the quality and quantity of production aromatic resin or agarwood. The internal factors are variations in wood anatomy, phytochemicals and agarwood of infraspecies G. versteegii. Of five local populations taken from West Lombok Island in Indonesia, the research areas are geographically located at coordinates： 8°15′-8°40′ South Latitude and 116°00′-116°20′East Longitude. Quality and quantity of agarwood production is influenced by internal factors of eaglewood trees, such as high starch production and the size of the cells making up the larger wood tissue. Infraspecies G. versteegii that have quality and quantity production of aromatic resin （the best agarwood） is Beringin group and the highest quantity of agarwood production （agarwood formation on the whole organ） is Soyun group.
文摘Medicinal plants provide an important source of cure since ancient time. Poor soil resources, scarce and saline water and the harsh environment limited the production of plants in the Arabian Gulf countries. This study aimed to investigate the production potential of rosemary （Rosmarinus officinalis L.） grown on different growth media under greenhouse conditions. Three growth media agricultural soil, compost and hydroponic system were used, whereas tuff （inert volcanic material） was used as substrate. The result indicated that the high salinity of the agricultural soil limited growth and oil yield in rosemary. Shoot height increased in 11 weeks, by 62%, 65% and 114% in plants grown in agricultural soil, hydroponic system and compost, respectively. Na content in plants grown in agricultural soil was significantly higher than in plants grown in the other treatment. Essential oil yield in plants grown in compost exceeded those in agricultural soil by 114%. Essential oil content （0.66%-1.5% w/w） and chemical constituents concentrations did not change significantly with growth media. The main constituents, more or less, are comparable to essential oils constituents reported from other countries. In comparison, better yields are obtained for individual components of the oils of plants grown under our green house conditions. This study demonstrated the great potential of commercial production of rosemary in the greenhouse without compromising the oil quality and oil yield.
