期刊论文

中文

林业科学

1001-7488

2014

50

10

42-48

10.11707/j.1001-7488.20141006

国家“十二五”科技支撑计划课题“板栗和锥栗高效生产关键技术研究与示范”（2013BAD14B04） 湖南省研究生科研创新项目（CX2014B331）

本校为第一机构

通过田间调查、花粉离体萌发、石蜡切片和人工授粉等试验手段对锥栗的开花动态、花粉活力、柱头可授性、风媒传粉特性和授粉特性等进行研究。结果表明:锥栗雌花群体分化时间约40天,单花分化时间约22天,柱头可授性持续期为7天;雄花序4—5月开花,群体花期23~26天,群体盛花期13~15天,单花序花期10~12天,开花后6天内花粉保持较高活力。风媒传粉是锥栗传粉的主要途径,风速和风向是影响锥栗传粉的主要气象因素,顺风方向上花粉的传播距离及花粉通量显著高于其他3个方向。锥栗在去雄套袋且不进行人工授粉的处理下未坐果,表明锥栗不存在无融合生殖;异交授粉坐果率均显著高于自交,表明异交能显著提高锥栗坐...

A field investigation,and erperiments of pollen germination in vitro,paraffin sectioning and artificial pollination were conducted to study flowering dynamics, pollen viability, stigma receptivity, characteristics of wind pollination and pollen germination of Castanea henry. The results showed that the differentiation time of female flowers in C. henryi was about 40 days,and the differentiation time of a single flower was about 22 days. The stigma receptivity duration was 7 days. The male inflorescence bloomed from April to May,and spanned about 23 - 26 days. The life span of individual male i...