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莜麦是高寒山区种植的主要作物之一,研究其生长发育和气象因素间的关系,对于确定育种目标、适宜播期、轮作倒茬,正确引种及品种区划布局等,均有重要意义。通过1982年在本所采用晋燕四号品种,11个播期的试验,运用逐步回归法分析筛选,分析了莜麦生育期及各生育阶段和主要气象因子间的关系。综合试验结果,莜麦全生育期可分为四个阶段:1.播种到三叶是影响生育期长短的主要阶段,呈规律性变化,但随播期的推迟规律性递减,此期的长短主要受气温和土壤湿度的影响。特别是气温影响更为显著,r=-0.9618。回归方程为:Y=60.8759-
Barley is one of the main crops planted in the alpine area. Studying the relationship between its growth and meteorological factors is of great significance for determining the breeding objectives, suitable sowing dates, crop rotation, correct introduction and variety zoning. By using the Jinyan No.4 variety and 11 sowing dates in our institute in 1982, we used the stepwise regression analysis and screening to analyze the relationship between the growth period of O. miltiorrhiza and various stages of growth and the main meteorological factors. According to the results of the comprehensive test, the whole growth period of oatmeal can be divided into four stages: 1. The main stage of sowing to clover is the main stage that affects the length of growth stage, which changes regularly, but the regularity decreases with the delay of sowing stage. Mainly affected by temperature and soil moisture. In particular, the temperature effect is more significant, r = -0.9618. The regression equation is: Y = 60.8759-