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水稻幼穗发育阶段的外观与内部形态鉴别方法很多。为了探索某些形态鉴别方法在寒地水稻上的实用性,于1974～1976年就幼穗长度法、叶耳间距法和颖花颜色等做了研究,并在叶令指数法的研究基础上明确了倒数叶令和幼穗发育的关系. 材料与方法供试材料采用有代表性的四个品种。极早熟类型的黑交732,早熟类型的北斗,中
There are many ways to identify the appearance and internal morphology of young panicle in rice. In order to explore the practicality of some morphological identification methods in cold paddy rice, the methods of spike length, leaf-ear spacing and spike color were studied from 1974 to 1976. Based on the study of leaf index method Clear the relationship between the countdown leaves and the development of young panicle.Materials and Methods The tested materials used representative four varieties. Very early type of black cross 732, premature type of Beidou, in