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郑州早粳、黎优57是我省目前麦茬水稻旱种的主要品种,研究和探讨其在旱种条件下的生长发育规律,对指导生产、夺取大面积麦茬水稻旱种丰收具有十分重要的意义。为此,从1982—1984年,我们对这两个品种的根、茎、叶生长发育、分蘖与分蘖成穗规律、幼穗分化以及籽粒灌浆等进行了观察研究,现总结于下:
Zhengzhou early japonica rice and Liyou 57 are the main varieties of dry cultivation of rice stubble in our province at present and to study and study their growth and development rules under dry cultivation conditions is of great significance to direct production and seize the harvest of large-area drywheat rice . Therefore, from 1982 to 1984, we observed the growth, development, tillering and tillering of panicles, panicle differentiation and grain filling of the two cultivars, and summarized the following: