摘要
为了探讨不同采种期对华北落叶松种子品质的影响,采用试验的方法对华北落叶松不同采种期的球果重量、形态变化、种子产量、播种品质进行了初步测定,为合理确定华北落叶松种子的采收期提供科学依据。结果表明:在一定的采种时间范围内,随着采种时间的延长,球果重量呈缓慢上升后又开始下降的趋势,而种子产量及品质则呈上升趋势。根据试验结果确定,华北落叶松的最佳采种期为8月下旬至9月初。
In order to investigate the effects on the seed quality of Larix principis-rupprechtii in different collecting seed time,the seed weight,morphology,seed yield and sowing quality of Larix principis-rupprechtii were preliminary determined by the test methods. Meanwhile,the scientific basis was provided on the seed collecting time of Larix principis-rupprechtii.The results showed that：along with the change of collecting time in a certain time frame,the changing extension of cones weight increased slowly then began to decline,and the yield and quality of seeds increased slowly and then decreased. The suitable seed collecting time should be after late August to early September.
出处
《安徽农学通报》
2014年第13期112-114,共3页
Anhui Agricultural Science Bulletin
关键词
华北落叶松
采种期
种子产量
播种品质
Larix principis-rupprechtii
Seed collecting time
Seed yield
Sowing quality
