摘要
根据多年小麦试验、生产示范和气象资料的综合分析，提出了小麦冬前壮苗的形态生理指标，从小麦分蘖特性、群体结构、干物质积累、产量构成等方面，叙述了冬前壮苗在小麦产量形成中的重要作用及其增产的生物学机理．冬前壮苗个体健壮，群体适宜，分蘖成穗率高，养分和干物质积累快，有效穗多，籽粒产量高，对培育冬前壮苗的高产栽培技术进行了讨论．
According to the data of wheat field experiments,
production demonstractionand meteorlogy for many years,the standardS of pre-winter vigorous
seedlings were pro-posed;The tillering habit,populatoin developmemts,dry matter accumulation
and yield for-mation were analysed;the importance and biological mechanism of pre-winter
vigorousseedlings in higher yield and yield formatoin were discussed.Pre-winter vigorous
seedlingshave vigorous individual seedlings,suitable population,high percentage of fertile
tillers,fastnutrient and dry matter accumulation,more effective ears and plump grains.The
growingtechnigues for vigorous seedlings were discussed.
关键词
小麦
壮苗
栽培
高产
triticum aestivum
stocky
plants
machanism
cropping
