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南大2419小麦是长江流域主要优良品种之一。湖北省推广这个良种的面积,已占全省小麦播种面积的80％以上,产量高,增产显著。但自推广后,由于良种繁育推广制度不够健全,所以目前在生产上出现不少变异退化的类型。如植株变高。秆色变红(紫),穗型变小,小穗密度变稀变密,长芒变短芒(或无芒),芽鞘颜色变紫,幼苗生长习性变匍伏性或半匍伏性等,尤其是种子中出现红粒种更为普遍而明显。为了了解南大2419种子中红粒种的特征、特性、产量等与南大2419原种的区别,为南大2419的选种、留种和良种繁育提供依据,我场
Nanda 2419 wheat is one of the main fine varieties in the Yangtze valley. Hubei Province to promote the area of this species, accounting for more than 80% of the province sown area of wheat, high yield, significant yield. However, since the promotion, since the promotion and breeding of improved seed breeding system is not sound enough, so far there have been many types of variation and degeneration in production. Such as plants become tall. The stalk color turns red (purple), the panicle becomes smaller, the spikelet density becomes thinner and denser, the long mango becomes shorter (or not), the color of bud sheath becomes purple, and the growth habit of the seedling becomes creeping or semi-creeping And so on, especially the red seed species appears more common and obvious. In order to understand the characteristics, characteristics, yield and other characteristics of Nongda 2419 seeds and the original varieties of Nantong 2419, this study provided the basis for selection, breeding and breeding of Nanda 2419 seeds.