冬小麦早代组合综合评价研究

Comprehensive Assessment Study of Early Generation Combinations in Winter Wheat

采用模糊数学综合评判方法,以千粒重、穗粒数、籽粒饱满度和株高为评价因素,对旱地选种圃中选10个F_2组合进行了综合评价．结果表明,所有组合综合指标值均高于对照品种,其中最佳组合3个,一般组合3个,较差组合1个．该方法定量地评价了F_2代组合优劣及其群体中各类单株比率和组合的选择潜力,为进一步在F_3代株系群体中评选优势系群提供了信息．

Using fuzzy mathematics comprehensive judgement method, 1000-grain weight, grains per spike, grain plumpness and stem length being assessment element, ten hybrid combinations F2, selected from dry land nursery of hybrid, were comprehensive assessed. The result showed that, the comprehensive index of all combinations is higher than the contrast; the numbers of the best, normal and relatively poor combinations are three, three and one, separately. Using this method can evaluate quantitatively F2 excellent or not, different individual rate in colony and choice potential of every combination. And this can offer information to evaluating superior line group in F3.