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制种田父母本花期预测的方法很多,通常采用的有叶龄余数法和幼穗剥检法。幼穗剥检法在幼穗分化前期(一、二期)因形态上不易识别,镜检又不方便,难以正确判断。叶龄余数法因各个亲本的主茎总叶片数受各种因素影响而有一定的变化幅度,难以把叶龄余数计算准确。由于上述原因,这两种方法在预测花期和调节花期上都有一定困难。 针对上述问题,自1984年以来根据稻株外观形态进行了花期预测的研究和探讨。通过对大量父母本详细观察记载和大量剥检
There are many ways to forecast the flowering date of parents in farming. There are usually the leaf age residue method and young spike detection method commonly used. Spikelet spike method in the early panicle differentiation (one, two) due to morphological difficult to identify, microscopic examination and inconvenient, difficult to judge correctly. Leaf age remainder method due to the main stem of each parent the total number of leaves affected by various factors have a certain degree of change, it is difficult to calculate the leaf age remainder. Due to the above reasons, both methods have some difficulties in forecasting florescence and florescence. In response to these problems, since 1984, based on the appearance of rice plant flowering prediction and research. Through a large number of parents observe the detailed records and a large number of stripping