麦粒能够长到多大多重?为了探讨小麦的增产潜力,这个问题有一定的意义。小麦的千粒重被认为是一个品种特性,品种间差异很大。例如我国各地的推广良种中,千粒重轻的如西北54,平原50、蚰子等,只有26—29克,重的如华北187、四川51等,约为40—43克,中等的如华北497,碧蚂1号、石家庄407等,在35克左右(金善宝,1961)。据报导个别杂交种,千粒重有高达65—70克的1953)。同一品种的千粒重随栽培条件的不同而有差异。虽说千粒重在产量构成要素中比较 How long can the grain grow? In order to explore the yield potential of wheat, this issue is of some significance. The 1000-grain weight of wheat is considered as a variety trait and varies widely among cultivars. For example, among the popularized varieties in our country, the grain weight of one thousand grain is as low as 54 in the northwest, 50 in the plain, and 30 in the plain, with only 26-29 grams. The heavy ones such as North China 187 and Sichuan 51 are about 40-43 grams, , Bi Ma 1, 407 Shijiazhuang, etc., at 35 grams (Jinshanbao, 1961). Individual hybrids are reported, with grain weight of up to 65-70 grams (1953). The same variety of 1000-grain weight with different cultivation conditions are different. Although the 1000-grain weight in the yield components of comparison