果树学报2012，Vol.29Issue(3)：466-470,I0001,I0002,7.
露地和日光温室甜樱桃花芽发育特征及胚珠多糖定位观察
Observation of the development characteristics of floral bud and localization of polysaccharides in the ovule of sweet cherry in field and greenhouse
摘要
Abstract
Embryo sac abortion of sweet cherry induced by high temperature was discussed with the evidence of development characteristics of floral bud and localization of polysaccharides in the ovule of cultivat ＇ Zaohongbaoshi＇ from the phase of bud swollening to the phase of post bloom. The resuhs showed that bud development characteristics and localization of starch grains in the ovule of sweet cherry grown in field, greenhouse, or sprayed with reagent for dormancy release was similar in the same phenological pe- riod, and the amount and distribution of starch grains in the ovule of ＇Zaohongbaoshi＇ in greenhouse was larger and wider than that in field respectively in the same phenological period, and the amount and dis- tribution of starch grains in the ovule of ＇Zaohonghaoshi＇ treated with the reagent for dormancy release （Two days after anthesis） were larger and wider compared with control in the same phenological period. It was indicated that the ambient temperature was an important factor which determined developmental progress of floral bud, the amount and distribution of ovulary polysaccharides. It was suggested that high temperature could be an inhibitor of polysaccharides hydrolyzation, but accelerate the development of floral bud, and that the difficient hydrolytic carbohydrate supply for quick development ot ovule anu embryo sac ultimately induced the embryo sac abortion. It was assumed that the biological effect of reagent for dormancy release could result from the mechanism of high temperature stress avoidance by advancing the progression of floral bud development and improving the developmental quality of embryo sac.关键词
甜樱桃（Prunus/aviumL．）/花芽/胚珠/发育/多糖定位Key words
Sweet cherry/Floral bud/Ovule/Development/Localization of polysaccharide分类
农业科技引用本文复制引用
职倩倩,赵长竹,顾红,林苗苗,陈锦永,杨晓红,方金豹..露地和日光温室甜樱桃花芽发育特征及胚珠多糖定位观察[J].果树学报,2012,29(3):466-470,I0001,I0002,7.基金项目
中国农业科学院果树生长发育与品质控制重点开放实验室项目 （）
国家外专局引智项目 （）
