摘要
本文系统地研究了楸树采种期与种子品质的关系。结果表明,5个不同的采种期与种子千粒重、含水量、果形指数呈曲线回归关系,与发芽率呈直线回归关系。并提出节气法、形态成熟特征法及果形指数法3种判断适宜采种期的方法。
The study results show that the relationship of regression curve exists between five different time to pluck seed, seed thousand-kernel-weight, seed moisture content and fruit shape index, while the relationship of regression line exists between five different time to pluck seed and the percentage of seed germination. The three methods given for judging the optimum plucking time are season method, morphological maturity characteristic method and fruit shape index method.
出处
《河南农业大学学报》
CAS
CSCD
1990年第2期227-231,共5页
Journal of Henan Agricultural University
关键词
楸树
种子
品质
采种期
回归方程
Catalpa bungei C. A. Mey
fruit
maturity
plucking seed time
seed quality
regression equation
