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利用浙江南北跨越27°-31°12′N,相距约450公里的不同生态条件进行穿梭育种研究。从F_2起在嘉兴、杭州、富阳和温州的不同生态条件下进行选择,所选择的单株相互交换,使每一个试点都种植全部选择的株系,允许选育者根据当地的表现进行淘汰和选择。这样便能在不同的生态条件下对每一世代的当选单株进行适应性鉴定,以选育适应性较广的新品种。通过穿梭育种不仅较易选得适应性较广的品系,而且最后所选得的较优良品系几乎没有一个是选育者从自己推荐的组合中连续选择育成的。这表明穿梭育种还可以通过各育种者扬长避短,共同努力,提高选择效果。现初步育成几个新品系。本文还对今后的穿梭育种工作的改进作了讨论。
Shuttle and breeding studies were carried out using different ecological conditions of about 450 km apart across 27 ° -31 ° 12’N north and south of Zhejiang. Selected from F 2 under different ecological conditions in Jiaxing, Hangzhou, Fuyang and Wenzhou, the selected plants were exchanged for each other, so that each of the three plots was planted with all the selected strains, allowing the breeder to eliminate it according to local performance and select. In this way, the adaptability of the elected individuals of each generation can be identified under different ecological conditions to breed new varieties with wider adaptability. It is not only easier to choose a more adaptable line by shuttle breeding, but there is hardly any one of the better lines selected finally. The breeders choose breeders continuously from their recommended combinations. This shows that shuttle breeding can also be adopted by the breeders to avoid weaknesses, work together to improve the selection effect. Now initial breeding several new lines. This article also discussed the improvement of shuttle breeding in the future.