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影响米质的因素较多。除品种本身的遗传特性外,收割期对米质也有一定影响。在云南中北部,水稻收割期处于雨季,常因天气不良而延迟或提早收获。不同类型品种(穗数、中间、穗重型)的出穗整齐度和成熟度也不尽一致。对不同收割期米质的变化进行研究,有利于确定适合的收割时期,达到多收、优质的目的。1 材料与方法1.1 供试材料
More factors affect the quality of rice. In addition to the genetic characteristics of the breed itself, the harvest period also has a certain impact on the quality of rice. In central and northern Yunnan, the paddy harvest season is in the rainy season, often delayed or harvested earlier due to bad weather. Different types of varieties (spike number, middle, spike weight type) ear uniformity and maturity are not the same. Researching on the changes of rice quality at different harvest stages will help determine the appropriate harvesting period and achieve the objective of high harvest and good quality. 1 materials and methods 1.1 test materials