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甘兰需要二年的时间才能完成一个生育周期。北方地区为了加快育种速度和良种的繁育推广,常采取南繁加代途径。实践表明,不同地区特别是南北方两地环境相差较大的地区,采种期在季节上提前许多,种株的生长发育差异很大。迄今为止,国内尚未见这方面的研究报道。本文试图通过南北两个地理位置差距较大地区的采种试验,对采种量进行比较并分析不同地点种株各性状对采种量的影响,找出规律,为充分利用我国的地理条件,提高甘兰采种和加快繁育速度提供参考依据。
It takes two years to complete a fertility cycle. In the north, in order to speed up the breeding speed and the promotion and breeding of the elite, it is common to take the Nanfan alternative. Practice shows that in different regions, especially in the north and south, where the environmental difference is relatively large, the seed-planting period is much earlier in the season, and the growth and development of the strains are quite different. So far, no reports of this aspect have been reported in China. In this paper, we try to compare the amount of seed collection with the results of two different geographical locations in North and South China, and analyze the influence of the traits of seed in different locations on the amount of seed collection. In order to make full use of the geographical conditions in our country, Seeds and accelerate breeding speed provide reference.