摘要
在春玉米籽粒形成过程中 ,籽粒干重、籽粒淀粉、脂肪含量呈向上的 S型曲线变化 ,籽粒含水量、蛋白质呈向下的 S型曲线变化。用 L ogistic方程、倒数方程或一元三次方程可较好的模拟。播种期不改变籽粒及其品质形成趋势 ,但对数学模型参数有不同程度影响。早播籽粒百粒重、淀粉、脂肪含量显著高于晚播。而籽粒含水量、蛋白质含量显著低于晚播。 4月 15日至
During seed of spring maize forming,dry weight of one hundred seeds and the content of starch and fat in the seed changes as up 'S' curve,the content of water and protein in the seed changes as down 'S' curve.They fit the Logistic or one element cubic equation well.The sowing time can't change the tendency of seed and quality formation,but it influences parameters of model to varying degrees.The weight of one hundred seeds,the content of starch and fat of early sowing is higher than late sowing,but the content of water and protein is significantly lower than late sowing.The suitable sowing time in Huhhot plain is from April 15 to 30.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2000年第S1期26-29,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
春玉米
播种期
籽粒形成
营养品质
Spring maize
Sowing tiem
Seed formation
Nutrient quality
