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2000年花检期间,我们对山西、辽宁、张家口等地的杂交高粱制种基地进行了现场考察,发现各基地都不同程度地存在着花期不遇现象,尤以父本偏晚的情况普遍存在。究其原因,主要是春季干旱,亲本的抗旱性和适应性不同,对气候的反应敏感程度不同,造成父母本生长发育不协调所致。多年的制种实践告诉我们,制种田花期相遇是提高制种产量的关键,然而,高粱制种受气候、地力条件,亲本特性等诸多因素的影响,在制种过程中往往出现花期不遇现象,要解决这一问题,就必须采取综合措施,促进父母本的协调生长、才能达
During the flower check in 2000, we conducted on-site investigation on the hybrid sorghum seed production bases in Shanxi, Liaoning, Zhangjiakou and other places and found that the occurrences of the flowering phases were all found in different bases, especially when the male parents were late. The main reason is the drought in spring, the parents of different drought resistance and adaptability, sensitivity to different degrees of climate change, resulting in the parental growth and development due to uncoordinated. Years of seed production practice tells us that the system of flowering is the key to improving seed production, however, sorghum seed production by climate, geotechnical conditions, the characteristics of the parent and many other factors in the production process often appear flowering phenomenon, To solve this problem, we must take comprehensive measures to promote the coordinated growth of parents in order to achieve