摘要
本文于尤溪县经营林场杉木种子园随机调查了303个球果的不稔种子流行率,选用12个探索性的因素作为项目(自变量),根据数量化理论Ⅰ原理,分别建立两个不稔种子(涩籽、瘪籽)流行的预测模型。复相关系数F检验表明观察F值大于1％F值,这两个模型皆可用于预报涩、瘪籽流行率。偏相关t检验表明遗传、立地、病害等对杉木不稔种子流行皆有明显的影响。
The epidemic rates of the Chinese-fir sterile seed in the 303 cones were observed from the seed garden at the Youqi Management Forest Farm(Fujian Prouince ). 12 questionaire items were chosen as explanatory items. And in the light of the theory of quantification, two forecasting models for the sterile seed with tannin-like substance and the empty seed were fitted. F-test for the multiple correlation coefficients indicated that the observed F values were larger than the 1 %F value. So both models were used as forecasting the epidemic rates. T-test for the partial correlation coefficients showed that inheritance, site conditions, and disease etc had observable influence over the epidemic rates.
出处
《福建林学院学报》
CSCD
1990年第1期72-78,共7页
Journal of Fujian College of Forestry
关键词
杉木
涩籽
瘪籽
数量化
模型
Chinese fir, sterile seed with tannin-likesubstance, empty seed, for-ecasting model
