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SC704玉米单交制种,花期能否相遇是制种成败的关键。目前,在生产上主要采用父母本分期播种(简称分期播制种)和母本覆膜、父本不覆膜同期播种(简称同期播制种)的方法来调整亲本花期,在正常情况是相遇的。但遇到气候异常或栽培措施不当,往往会出现花期不遇,造成制种质量和产量的下降。因此,在制种过程中如何预测花期并采取相应的调整措施使亲本的花期相遇,这同样是保证制种成功的重要技术环节。
SC704 corn single crossbred, flowering is the key to the success of seed production. At present, the main production in the use of parental sowing (referred to as staged sowing) and the female parent membrane, the male parent does not cover the same sowing (sowing in the same period) method to adjust the parental flow, in normal circumstances is the encounter of. However, in the event of anomalous climate or improper cultivation measures, the flowering period will often be missed, resulting in a drop in the quality and yield of seed production. Therefore, how to predict the flowering period in the seed production process and take the corresponding adjustment measures to meet the flowering date of the parents is also an important technical step to ensure the success of seed production.