品种性状是作物本身遗传性和环境条件互相统一的综合表现,不仅在不同品种间有着植物学性状和经济性状上的差异,而且同一品种在不同栽培条件下也会有很大差别。在不同的栽培条件下,便会选出不同的优良品种。如在普遍耕作水平下选出的良种,在更高的条件下栽培时,往往表现增产潜力不足,而在丰产栽培下选育的优良品种,在较低水平下栽培也未 Variety traits are the comprehensive performance of the heredity of the crop itself and the environmental conditions, which not only have the differences between the botanical and economic traits of different cultivars, but also vary widely under the different cultivation conditions. Under different cultivation conditions, different fine varieties will be selected. If the elite selected at the level of ubiquitous cultivation are cultivated under higher conditions, they often exhibit insufficient yield-increasing potential, whereas fine varieties bred under high-yield cultivation have not been cultivated at lower levels