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一、花期相遇的指标和原则3197A的开花习性是:雌蕊柱头在1～17天内都有不同的结实能力,而1～10天的结实量占80～90％,在盛花期(5～6天)结实能力最高。理想的花期相遇指标是母本盛花期与一期父本的盛花期、二期父本的初花期相遇,母本的末花期与二期父本的盛花期相遇。植株的生育指标如下表。为保证花期相遇,应该使父本开花稍晚于母本,也就是所说的“宁让母等父,绝不让父等母”。
First, the flowering meet the indicators and principles 3197A flowering habits are: pistil stigma in 1 to 17 days have different ability to bear, and 1 to 10 days of the amount of 80 to 90%, at full flowering (5 to 6 days ) The most capable of fruiting. The ideal inflorescence met index was the flowering period of the female parent full bloom and the first full bloom of the male parent, the first flowering of the second male parent met, the female end of the flowering and the male parent of the full flowering meet. Plant fertility indicators as follows. In order to ensure that the flowering period meets, the male parent should be allowed to bloom later than the female parent, that is, “let the mother wait for the father rather than the father for the mother.”