前言种子活力是一个决定于基因型,又因环境因素而变化的生理特性,是种子在田间条件下迅速、整齐地出苗,且能长成正常幼苗的一种生长力。活力高的种子萌发良好,长成键壮的幼苗,适应不良的环境,具有较大的增产潜力。种子活力的基础是遗传性,不同小麦品种的种子活力差异很大,选用活力较强的品种,并在相适应的条件下栽培,就能保证小麦稳产丰收。 Introduction Seed vigor is a physiological characteristic that depends on the genotype and changes due to environmental factors. It is a kind of growth force that seed quickly and neatly emerges under field conditions and grows into normal seedlings. High germination seeds germinate well, grow into key and strong seedlings, adapt to poor environment, with greater potential for yield. Seed vitality is based on genetic, different varieties of wheat seed vigor vary widely, the choice of stronger vitality varieties, and under the conditions of cultivation, we can ensure a stable yield of wheat.