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Observation on Flowering of Agrostis stollonifera
Author(s): XIE Caiyun, TANG Chengbin, SHANG Yishun, MO Zhiping
Pages: 28-
30
Year: 2003
Issue:
2
Journal: GUIZHOU AGRICULTURAL SCIENCES
Keyword: 匍茎翦股颖; 开花特性;
Abstract: 观察了贵州南部生态条件下匍茎翦股颖的开花特性.在田间栽培条件下,匍茎翦股颖一般5月初开始抽穗,5月中旬始花.匍茎翦股颖的穗由分枝穗组成,由于不同分蘖穗的发育程度的差异和群体中个体间的差异,致使匍茎翦股颖群体散粉期可达45 d,散粉高峰期为2周,花序与花朵的开花顺序与分化形成先后一致,每朵小花只开放1次,以上午9∶00开放率最高,小花开放时间为3 h,12∶00闭花,30~40 d子房发育的种子趋于成熟.
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