论文部分内容阅读
根据我们整理水稻地方品种的经验,在鉴别籼、粳、陆、糯稻时,应注意以下事项。籼稻和粳稻(一)种子1.粒形。籼稻一般要细长一些,长宽比自2.7—4.0以上,粳稻则在1.9—3.0之间,而多数在2.5以下。但也有例外,多发生于粳稻上,如“三粒寸”之类品种,“富源大谷子”的籽粒长度达12.23毫米,宽度3.11毫米,长宽比为3.93,不是籼稻而是粳稻。还有小部分光壳品种也是长宽比显大的,从现有情况看来,光壳种基本上是粳稻。目前,这类长粒长壳种只见于我省南部陆稻多的地区。
According to our experience in organizing rice landraces, we should pay attention to the following when identifying indica, japonica, land and glutinous rice. Indica and japonica (A) seeds 1. Granules. Indica generally slender, aspect ratio from 2.7-4.0 above, japonica is between 1.9-3.0, while the majority of the following 2.5. However, there are some exceptions, which occur on japonica rice, such as “three grain size”. The grain length of “Fuyuan dawzi” is 12.23 mm in length, 3.11 mm in width and 3.93 in aspect ratio, not indica but japonica. There is also a small part of the light shell variety is also significantly larger aspect ratio, from the existing situation, light shell species is basically japonica. At present, these long-grain long-shell species are found only in areas with much land-rice in the southern part of our province.