我们在进行作物室内考种时,称计子粒的千粒重费神、费时又容易出现误差,而且误差不知出在哪里,得到的数据是不够准确的;特别是在称计小子粒的千粒重是更不好操作。为了缩短数千粒的时间,而且要科学,简便易行,准确度较高,误差很小,通过多年的多作物多次实践,误差很小,通过多年的多 When we carry out indoor examination of crops, we say that it is time-consuming and error-prone to calculate the grain weight of 1000 grains, and we do not know where the errors are and the data we get are not accurate enough. Especially when we say that the grain weight of 1000 grains is even worse operating. In order to shorten the time of thousands of grains, but also to be scientific, simple, high accuracy, error is small, many years of multi-crop practice, the error is small, through many years