摘要
对“百农 64”亩产 40 0～ 60 0 kg无倒伏麦田产量构成因素的统计分析表明 ,成产因素对产量的作用依次为穗数 >穗粒重 >粒重。亩产从 50 0 kg提高到 60 0 kg的模拟产量结构是 :穗数从每亩37.77万增加到 42 .59万 ;穗粒数从 38.0 0粒增加到 41 .0 4粒 ;千粒重从 38.84g下降到 38.1 6g。实现亩产 60 0 kg左右超高产水平的增产途径 ,应是增穗增粒稳定粒重 ,实现这一途径的技术关键是改善群体质量 ,降低群体对个体的制约 ,避免发生倒伏。
The analysis of factors influencing the yield of wheat through the experiment carried out with'Bainong 64'400～600kg yield per mu in Tangzhuang,weihui city,Henan Province showed that the functions of factors influencing yield are quantity of spike,grain and weight per grain.The simulated model to increase yield from 500kg per mu to 600 kg per mu is to increase the quantity of spike from 377,700 per mu to 425,900 per mu,to increase quantity of grain from 38.00 per spike to 41.04 per spike and to decrease the weight of kilograin from 38.84g to 38.16g.The ways to achieve altrahigh yield of about 600 kg per mu should lower the restrictions of groups to individual,avoid lodging and increase spike and grain,and stable the weight of grain.
出处
《河南职业技术师范学院学报》
1998年第1期1-5,共5页
Journal of Henan Vocation-Technical Teachers College
关键词
小麦
成产因素
增产
超产
wheat,ultrahigh yield,factors of yield,ways to increase yield,
