论文部分内容阅读
通过对甘农3#、甘农5#和游客紫花苜蓿多元杂交后代选育的36个株系及其亲本生长、产量、品质等相关指标的测定,采用灰色关联度理论,构造综合评价模型进行供试材料综合评价,筛选出速生12#、速生11#株系为最理想的优良株系,生长高度分别为105.44 cm、105.42 cm;生长速度分别为1.75 cm/d、1.68 cm/d;叶茎比分别为0.30、0.25;分枝数分别为23、17;鲜草产量分别为39.99 t/hm2、35.13 t/hm2;粗蛋白含量分别为19.95%、23.89%;相对饲用价值为153.15%、157.02%。多叶2#、速生5#、速生20#、速生21#等4个株系的平均生长高度、生长速度、叶茎比、分枝数、产量、粗蛋白含量和相对饲用价值等综合评价结果较为理想,可作为较好潜力的株系。
By measuring the growth, yield and quality of 36 lines selected from Gannong 3 #, Gannong 5 # and tourists alfalfa hybrids and their parents, the gray relational theory was used to construct the comprehensive evaluation model The comprehensive evaluation of the tested materials screened the fast growing 12 # and the fast growing 11 # lines as the best fine lines with the growth height of 105.44 cm and 105.42 cm respectively; the growth rates were 1.75 cm / d and 1.68 cm / d respectively; Stems ratio were 0.30,0.25 respectively; branch numbers were 23,17 and fresh grass production were 39.99 t / hm2 and 35.13 t / hm2 respectively; crude protein content was 19.95% and 23.89% respectively; relative feeding value was 153.15% , 157.02%. The average growth height, growth rate, ratio of leaf to stem, number of branches, yield, crude protein content and relative feeding value of 4 lines including 2 # poly leaf, 5 # fast growing, 5 # fast growing and 20 # The result is ideal and can be used as a strain with better potential.