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小麦粒重是品种特性、个体发育、栽培技术、环境条件的最终体现。尽管品种产量的三因素遗传力排序是:千粒重>粒数>穗数,即粒重受环境变异较其它二者为小。但是在实际生产上,即使是同一品种,在不同年际、不同栽培技术条件下,千粒重可相差4-12克。以亩产500斤的麦田计,千粒重每增减1克,亩产量即可增减13-17斤;如增减5克,即可增减60-90斤。而在大面积
Wheat grain weight is the final manifestation of variety traits, individual development, cultivation techniques and environmental conditions. Although the three-factor hereditary rank of varieties yield is: 1000-grain weight> grain number> panicle number, ie grain weight is less affected by environmental variation than the other two. However, in actual production, even if the same species, in different years, different cultivation techniques, 1000 grain weight can be a difference of 4-12 grams. To yield 500 pounds per mu of wheat fields, 1000 grams per weight increase or decrease 1 gram per acre can increase or decrease 13-17 pounds; such as increase or decrease 5 grams, you can increase or decrease 60-90 pounds. In large areas