摘要
为了解新疆三叶草（Trifolium）弹花现象和繁殖特性,本研究对三叶草开花习性、雄蕊散粉时间及不同交配方式对结实性的影响进行研究。结果表明：1）单花从现蕾至萎蔫持续时间为50-52h,花粉展示属于龙骨瓣闭合不严;2）雌蕊柱头在翼瓣生长至旗瓣长1/2处时开裂,雄蕊在翼瓣完全打开时开始散粉;3）自主自交中昌吉三叶草结实率最高,为98.61%;同株异花授粉中乌鲁木齐南山山地草甸的三叶草结实率最高,为100%;自由授粉中呼图壁林带的三叶草结实率最低,为96.30%。本研究结果可为进一步开展三叶草的繁育系统和生殖生物学的研究提供参考依据。
To understand tripping phenomenon and reproductive characteristics of Xinjiang Trifolium,flowering habit,pollen spreading time and the influence of different mating pattern on reproductive characteristic were studied.The results as followed：1）flower from budding to wilting maintained 50-52h,pollen display belongs to keel valvular insufficiency;2）the pistil stigma crazed when wing petal grow to 1/2of flag petal;3）the podding rate of Trifoliumfrom Changji desert steppe in the autonomous selfing was highest（98.61%）;the podding rate of Trifoliumfrom Urumqi Nanshan mountain meadow under homologous strain cross-pollination was the highest（100%）;the podding rate of Hutubi Trifoliumunder forest belt with free pollination was the lowest（96.30%）.The results of this study can provide some references for further study on breeding system and reproductive biology of Trifolium repens.
出处
《草业科学》
CAS
CSCD
北大核心
2016年第4期662-668,共7页
Pratacultural Science
基金
新疆维吾尔自治区重点实验室开放课题"新疆野生白三叶的形态和生理指标与抗寒性的关系研究"(XJDX0209201304)
关键词
三叶草
开花习性
散粉特性
繁殖
Trifolium
flowering habits
pollination features
propagation
