[Objective] The aim was to clear the relationship between fruit growth and development and endogenous hormones content in the pulp of Dangshansu pear.[Method] Choosing Dangshansu pear as material,the dynamic changes o...[Objective] The aim was to clear the relationship between fruit growth and development and endogenous hormones content in the pulp of Dangshansu pear.[Method] Choosing Dangshansu pear as material,the dynamic changes of endogenous hormones in pulp during various development stages were determined by means of enzyme linked immunosorbent assay(ELISA).[Result] The results indicated that the content of endogenous hormones like ZR,GA and IAA promoting fruit growth showed increase trend within 15 d after pollination,and higher content of ZR,GA and IAA could promote ovary development and normal fruit setting of Dangshansu pear.The content of ZR in pulp had the highest value at the beginning of the first fast growth period,and then showed decrease trend until fruit became mature.The dynamic changes of IAA and GA were similar,namely their contents were higher in the first fast growth period,and decreased with fruit development,and then increased rapidly and was up to the maximum value in the second fast growth period,corresponding with the growth dynamic of fruit.The peaks of ABA content could be found on the 15th,45th and 120th day after pollination,which corresponded with the physiological fruit dropping and maturing period of Dangshansu pear.[Conclusion] The duration of various development periods and content of endogenous hormones of Dangshansu pear were different,and fruit growth and development were closely related to the content of endogenous hormones.展开更多
[Objective] The aim was to investigate effects of bagging and bag-removing times on quality of applepear. [Method] The seven-year-old applepears were taken as materials to explore effects of bagging and bag-removing t...[Objective] The aim was to investigate effects of bagging and bag-removing times on quality of applepear. [Method] The seven-year-old applepears were taken as materials to explore effects of bagging and bag-removing times on external and internal quality of applepear. [Result] Scientific timing of either bagging or bag removing will improve fruit quality, color expressed by anthocyanin pigments and coloring index, and reduce chlorophyll content, pericarp thickness and fruit dots. [Conclusion] It has determined that the scientific times of applepear bagging and bag removing are 55 d after peak flowering and 13 d prior to harvesting in Fuxin, Liaoning Province.展开更多
基金Supported by Natural Science Foundation of Anhui Province "Studyon the Metaxenia Phenomenon and its Mechanism of DangshansuPear" (090411008)Anhui Agricultural Committee " Modern Agricultural Fruit Industry Technology System" (Anhui Academy of Agricultural Sciences [2011] No. 6)Anhui Provincial Finance Department " Modern Agricultural Production and Development Project oDangshansu Pear Industry of Anhui Academy of Agricultural Sciences" (Anhui Academy of Agricultural Sciences [2010] No. 53)~~
文摘[Objective] The aim was to clear the relationship between fruit growth and development and endogenous hormones content in the pulp of Dangshansu pear.[Method] Choosing Dangshansu pear as material,the dynamic changes of endogenous hormones in pulp during various development stages were determined by means of enzyme linked immunosorbent assay(ELISA).[Result] The results indicated that the content of endogenous hormones like ZR,GA and IAA promoting fruit growth showed increase trend within 15 d after pollination,and higher content of ZR,GA and IAA could promote ovary development and normal fruit setting of Dangshansu pear.The content of ZR in pulp had the highest value at the beginning of the first fast growth period,and then showed decrease trend until fruit became mature.The dynamic changes of IAA and GA were similar,namely their contents were higher in the first fast growth period,and decreased with fruit development,and then increased rapidly and was up to the maximum value in the second fast growth period,corresponding with the growth dynamic of fruit.The peaks of ABA content could be found on the 15th,45th and 120th day after pollination,which corresponded with the physiological fruit dropping and maturing period of Dangshansu pear.[Conclusion] The duration of various development periods and content of endogenous hormones of Dangshansu pear were different,and fruit growth and development were closely related to the content of endogenous hormones.
文摘[Objective] The aim was to investigate effects of bagging and bag-removing times on quality of applepear. [Method] The seven-year-old applepears were taken as materials to explore effects of bagging and bag-removing times on external and internal quality of applepear. [Result] Scientific timing of either bagging or bag removing will improve fruit quality, color expressed by anthocyanin pigments and coloring index, and reduce chlorophyll content, pericarp thickness and fruit dots. [Conclusion] It has determined that the scientific times of applepear bagging and bag removing are 55 d after peak flowering and 13 d prior to harvesting in Fuxin, Liaoning Province.