With ＇Hongmanao＇, a sweet cherry cultivar from central Shanxi Province, as the experimental material, the chilling requirements of different types of fruit branches （including mixed fruit branch, long fruit branch,...With ＇Hongmanao＇, a sweet cherry cultivar from central Shanxi Province, as the experimental material, the chilling requirements of different types of fruit branches （including mixed fruit branch, long fruit branch, medium fruit branch, short fruit branch and blossom fruit branch） were studied by the 0-7.2 ℃ model in a solar greenhouse during 2012-2013. In the greenhouse, the fruit branches of ＇Hongmanao＇ were cultured in water in a thermostatic environment. The results showed that the chilling requirement of leaf buds of ＇Hongmanao＇ was lower than that of its flower buds; and the chilling requirements of the five types of fruit branches ranked as blossom fruit branch＇s〈short fruit branch＇s〈medium fruit branch＇s〈long fruit branch＇s〈mixed fruit branch＇s,展开更多
Background： With the rapid development of genomics, many functional genes have been targeted. Molecular marker assisted selection can accelerate the breeding process by linking selection to functional genes. Methods...Background： With the rapid development of genomics, many functional genes have been targeted. Molecular marker assisted selection can accelerate the breeding process by linking selection to functional genes. Methods： In a study of upland cotton （Gossypium hirsutum L.）, the F2 segregated population was constructed by crossing X1570 （short branches） with Ekangmian 13 （long branches） to identify the short fruiting branch gene and marker assisted selection with SNP（Single Nucleotide Polymorphisms, SNP） linked to its trait. Result： The result demonstrated that linked SSR marker BNL3232 was screened by BSA（Bulked segregant analysis, BSA） method; one SNP locus was found, which was totally separated from the fruiting branches trait in upland cotton. Conclusion： It was verified that this SNP marker could be used for molecular assisted selection of cotton architecture展开更多
A two-year field experiment was conducted to illustrate the effects of sowing date on cottonseed properties at different fruiting-branch positions（FBPs）.Two cotton cultivars（Kemian 1 and Sumian 15）were sowed on 25...A two-year field experiment was conducted to illustrate the effects of sowing date on cottonseed properties at different fruiting-branch positions（FBPs）.Two cotton cultivars（Kemian 1 and Sumian 15）were sowed on 25 April,25 May,and10 June in 2010 and 2011,respectively.The boll maturation period increased with the delaying of sowing date.Normal sowing treatment（25 April）had higher seed weight,embryo weight,embryo oil content and protein content than late sowing treatments（25 May and 10 June）.The flowering date,seed weight,embryo weight,embryo oil and protein contents,and the dynamic changes of embryo oil and protein contents were altered by different FBPs.A significant interaction of sowing date×FBP was observed on embryo weight,embryo oil content,embryo protein content and the dynamic changes of embryo oil and protein contents,but was not observed on seed weight.Seed weight,embryo weight,embryo oil and protein content had significant positive correlations with the mean daily temperature（MDT）,mean daily maximum temperature（MDTmax）,mean daily minimum temperature（MDTmin）,and mean daily solar radiation（MDSR）,indicating that temperature and light resources were the main reasons for different sowing dates affecting the cottonseed properties at different FBPs.Moreover,the difference in MDT was the main difference in climatic factors among different sowing dates.展开更多
he research aimed to explore the correlation between fruiting branch diameter of A. chinensis and fruit quality change during the post-ripening period and the mechanism,which could provide theoretical basis for making...he research aimed to explore the correlation between fruiting branch diameter of A. chinensis and fruit quality change during the post-ripening period and the mechanism,which could provide theoretical basis for making scientific management measures during A. chinensis fruit post-ripening period. In this paper,correlation analysis between fruiting branch diameter of A. chinensis and fruit quality change during post-ripening period during 2013- 2015 was conducted. Results were as below:(i) correlation coefficient analysis showed that fruiting branch diameter was highly positive correlation with number of fruit ventricle,significantly positive correlation with single fruit weight when picking and the indexes after the fruit ripening single(single fruit weight,loss rate of single fruit weight,longitudinal diameter of fruit and width of fruit core),lowly positive correlation with sugar content of fruit juice,and positive correlation with thick transverse diameter of fruit after ripening.(ii) Standard errors of regression analysis between fruiting branch diameter and single fruit weight,longitudinal diameter of fruit,wide transverse diameter of fruit,thick transverse diameter of fruit,fruit core length and sugar content of fruit juice were 12. 4248,4. 2731,2. 6452,2. 0260,0. 1337 and 1. 0035 respectively; significance F values of variance analysis were 0. 0743,0. 0658,0. 1950,0. 5733,0. 2600 and 0. 1517 respectively. It showed that fruiting branch diameter had a significant difference with thick transverse diameter of fruit and insignificant differences with other indicators; quadratic curve regression equation and linear regression equation of residual curve,observed value curve,forecast value curve and normal probability curve of were analyzed,and the results were all in line with the law of quadratic curve.(iii)The larger the fruiting branch diameter,the greater the indexes after post-ripening(single fruit weight,longitudinal diameter of fruit,wide transverse diameter of fruit,thick transverse diameter of fruit and sugar content of fruit juice),the better the fruit quality. It was clear that fruiting branch diameter could be as one of important bases of fruit quality change during post-ripening period. Through investigating fruiting branch diameter and the regression equation,it could predict single fruit weight,longitudinal and transverse diameters of fruit,and sugar content of fruit juice index after the ripening.展开更多
以避雨棚内3年生盆栽H5蓝莓为试材,分别于2022年6月10日、6月30日对一次枝、二次枝留长2~3芽超重短截,于7月20日对三次枝分别进行10、15、20、25、30 cm 5个短截处理,2023年2~6月调查5个处理枝的发枝与结果情况。结果表明,蓝莓三次枝留...以避雨棚内3年生盆栽H5蓝莓为试材,分别于2022年6月10日、6月30日对一次枝、二次枝留长2~3芽超重短截,于7月20日对三次枝分别进行10、15、20、25、30 cm 5个短截处理,2023年2~6月调查5个处理枝的发枝与结果情况。结果表明,蓝莓三次枝留枝长度30 cm短截处理的单株坐果数、单株产量、果实所含的总糖、糖酸比、Vc含量、总花色苷量显著高于其他处理,总黄酮醇量显著高于对照处理;总酸、柠檬酸显著低于其他处理。三次枝留枝长度为15 cm短截处理的单枝发枝量最多,枝条长度、平均单果重、果实硬度最大。三次枝留枝长度为25 cm短截处理的单枝结果数、总酸、柠檬酸、奎尼酸含量最高。综合指标分析和主成分分析认为,以三次枝留枝长度为30 cm的短截处理对蓝莓枝条生长发育和果实品质的效果最佳。展开更多
基金Supported by Key Scientific and Technological Project of Shanxi Science and Technology Department(20150311015-2)Shanxi Key Laboratory of Germplasm Improvement and Utilization in Pomology~~
文摘With ＇Hongmanao＇, a sweet cherry cultivar from central Shanxi Province, as the experimental material, the chilling requirements of different types of fruit branches （including mixed fruit branch, long fruit branch, medium fruit branch, short fruit branch and blossom fruit branch） were studied by the 0-7.2 ℃ model in a solar greenhouse during 2012-2013. In the greenhouse, the fruit branches of ＇Hongmanao＇ were cultured in water in a thermostatic environment. The results showed that the chilling requirement of leaf buds of ＇Hongmanao＇ was lower than that of its flower buds; and the chilling requirements of the five types of fruit branches ranked as blossom fruit branch＇s〈short fruit branch＇s〈medium fruit branch＇s〈long fruit branch＇s〈mixed fruit branch＇s,
基金Sponsored by State Key Laboratory of Cotton Biology Open Fund(CB2016A07)Hubei Provincial Agricultural Science and Technology Innovation Center Support Project(2016–620–000-001-010)The National Key Technology R&D Program(2014BAD11B0203)
文摘Background： With the rapid development of genomics, many functional genes have been targeted. Molecular marker assisted selection can accelerate the breeding process by linking selection to functional genes. Methods： In a study of upland cotton （Gossypium hirsutum L.）, the F2 segregated population was constructed by crossing X1570 （short branches） with Ekangmian 13 （long branches） to identify the short fruiting branch gene and marker assisted selection with SNP（Single Nucleotide Polymorphisms, SNP） linked to its trait. Result： The result demonstrated that linked SSR marker BNL3232 was screened by BSA（Bulked segregant analysis, BSA） method; one SNP locus was found, which was totally separated from the fruiting branches trait in upland cotton. Conclusion： It was verified that this SNP marker could be used for molecular assisted selection of cotton architecture
基金funded by the National Natural Science Foundation of China (31571606)the Special Fund for Agro-scientific Research in the Public Interest, China (201303002)+1 种基金the Jiangsu Collaborative Innovation Center for Modern Crop Production, China (JCICMCP)the China Agriculture Research System (CARS-18-20)
文摘A two-year field experiment was conducted to illustrate the effects of sowing date on cottonseed properties at different fruiting-branch positions（FBPs）.Two cotton cultivars（Kemian 1 and Sumian 15）were sowed on 25 April,25 May,and10 June in 2010 and 2011,respectively.The boll maturation period increased with the delaying of sowing date.Normal sowing treatment（25 April）had higher seed weight,embryo weight,embryo oil content and protein content than late sowing treatments（25 May and 10 June）.The flowering date,seed weight,embryo weight,embryo oil and protein contents,and the dynamic changes of embryo oil and protein contents were altered by different FBPs.A significant interaction of sowing date×FBP was observed on embryo weight,embryo oil content,embryo protein content and the dynamic changes of embryo oil and protein contents,but was not observed on seed weight.Seed weight,embryo weight,embryo oil and protein content had significant positive correlations with the mean daily temperature（MDT）,mean daily maximum temperature（MDTmax）,mean daily minimum temperature（MDTmin）,and mean daily solar radiation（MDSR）,indicating that temperature and light resources were the main reasons for different sowing dates affecting the cottonseed properties at different FBPs.Moreover,the difference in MDT was the main difference in climatic factors among different sowing dates.
文摘he research aimed to explore the correlation between fruiting branch diameter of A. chinensis and fruit quality change during the post-ripening period and the mechanism,which could provide theoretical basis for making scientific management measures during A. chinensis fruit post-ripening period. In this paper,correlation analysis between fruiting branch diameter of A. chinensis and fruit quality change during post-ripening period during 2013- 2015 was conducted. Results were as below:(i) correlation coefficient analysis showed that fruiting branch diameter was highly positive correlation with number of fruit ventricle,significantly positive correlation with single fruit weight when picking and the indexes after the fruit ripening single(single fruit weight,loss rate of single fruit weight,longitudinal diameter of fruit and width of fruit core),lowly positive correlation with sugar content of fruit juice,and positive correlation with thick transverse diameter of fruit after ripening.(ii) Standard errors of regression analysis between fruiting branch diameter and single fruit weight,longitudinal diameter of fruit,wide transverse diameter of fruit,thick transverse diameter of fruit,fruit core length and sugar content of fruit juice were 12. 4248,4. 2731,2. 6452,2. 0260,0. 1337 and 1. 0035 respectively; significance F values of variance analysis were 0. 0743,0. 0658,0. 1950,0. 5733,0. 2600 and 0. 1517 respectively. It showed that fruiting branch diameter had a significant difference with thick transverse diameter of fruit and insignificant differences with other indicators; quadratic curve regression equation and linear regression equation of residual curve,observed value curve,forecast value curve and normal probability curve of were analyzed,and the results were all in line with the law of quadratic curve.(iii)The larger the fruiting branch diameter,the greater the indexes after post-ripening(single fruit weight,longitudinal diameter of fruit,wide transverse diameter of fruit,thick transverse diameter of fruit and sugar content of fruit juice),the better the fruit quality. It was clear that fruiting branch diameter could be as one of important bases of fruit quality change during post-ripening period. Through investigating fruiting branch diameter and the regression equation,it could predict single fruit weight,longitudinal and transverse diameters of fruit,and sugar content of fruit juice index after the ripening.
