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1996~2008年,选用五个中国绿豆品种,五个泰国绿豆品种,构建九个轮回选择群体。2009～2010年,在中国南京,比较上述群体籽粒产量和农艺性状的差异显著性。结果表明,轮回选择对提高绿豆籽粒产量具有显著效果,遗传增益最大的群体增产9.59%。对于以籽粒产量为主要选择目标的轮回选择来说,只需选择两个轮次,第三轮开始遗传增益会逐步下降。穿梭育种获得的轮回选择群体(K群体)平均产量比未穿梭群体(N群体)高7.26%,说明穿梭育种对提高绿豆籽粒产量具有显著效果。将同一轮次的K群体和N群体进行比较,在轮回选择第一轮次(C1)、第二轮次(C2)、第三轮次(C3)和第四轮次(C4)四个轮次中,前者分别比后者增益4.07%、8.76%、8.53%和7.98%,说明穿梭育种产量遗传增益的稳定性。N群体内变异系数明显大于K群体,表明在N群体中继续选择,获得优良家系的几率高于K群体。
From 1996 to 2008, five Chinese mung bean varieties and five Thai mung bean varieties were selected to construct nine reincarnation groups. From 2009 to 2010, in Nanjing, China, the differences in grain yield and agronomic traits among the above groups were compared. The results showed that reincarnation had a significant effect on increasing mung bean grain yield, and the population with the highest genetic gain increased 9.59%. For the recurrent selection of grain yield as the main selection target, only two rounds are selected, and the genetic gain from the third round will gradually decrease. The average yield of recycle selection population (K population) obtained by shuttle breeding was 7.26% higher than that of non-shuttle population (N population), indicating that shuttle breeding has a significant effect on increasing grain yield of mung bean. The same round of K groups and N groups will be compared to select the first round (C1), the second round (C2), the third round (C3) and the fourth round (C4) four rounds Among them, the former gain 4.07%, 8.76%, 8.53% and 7.98% respectively than the latter, indicating the stability of the genetic gain of shuttle breeding. The coefficient of variation of the N group was significantly greater than that of the K group, indicating that the probability of success in selecting the N group was higher than that of the K group.