期刊论文

Stigma Shape Development and Receptivity of‘Zhongqiu Sucui'Chinese Jujube

Wang, S.

中文

园艺学报

0513-353X

2019

46

12

2309-2322

10.16420/j.issn.0513-353x.2019-0185

2018NK2043:湖南省重点研发项目 2016NK2147:湖南省重点研发项目 CX2016A02:中南林业科技大学研究生科技创新项目

本校为第一机构

研究枣花柱头形态发育特性及其可授性,可指导提高杂交育种效率。以‘中秋酥脆枣'为材料,显微观察柱头不同发育阶段的形态变化,花粉在柱头上的萌发情况,以确定柱头可授性。结果表明:‘中秋酥脆枣'花柱头二半裂,表面未见粘液分泌,属干性柱头。发育成熟的柱头表面有一层近圆形的乳突细胞。花柱形态随着单花开放进展呈现一定的变化。蕾扁期至初开期,二裂花柱紧密靠拢,整体呈圆锥状;萼片展平期花柱的间隙开始变大,向两侧生长;花瓣展平期花柱呈“V”字状;雄蕊展平期,两花柱夹角呈“Y”状,持续到子房膨大期。花柱底宽和花柱长随单花开放均呈增长趋势。蕾扁期柱头较平,蕾胖期至花瓣展平期均为尖圆形,表面...

In order to improve the efficiency of cross breeding in Chinese jujube, the stigma morphology and receptivity at different development stages were observed by microscopy, and the pollen germination on stigma was observed regularly to detect the receptivity of stigma at different development stages. The results showed that the stigma of Ziziphus jujuba 'Zhongqiu Sucui' was dry stigma and bifid, and there was no mucus secretion on the surface. The mature stigma was covered with a layer of nearly circular papillary cells. The morphological charact...