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高产优质红苕新品种的培育,一般需要七、八年的时间,有的甚至长达十年以上,才能在大面积上推广。从亲本的选择、诱导开花、杂交、选育、试验示范,到大面积推广,需经过若干环节,动员不少力量。多年来,许多生产上推广的品种由于在推广过程中,忽视了良种良法一齐推,只强调良种的特征特性、产量高底、抗逆性好坏,不重视栽培管理,耕作粗放,加之普遍均未建立种子留种地,导致品种间混杂,病虫害相互传播,又未进行综合防治等原因,使一个新品种在生产上用不了几
Cultivation of high-yield and high-quality red croaker new varieties usually takes seven or eight years, and some even up to ten years or more to promote on a large scale. From the selection of the parents, the induction of flowering, hybridization, breeding, experimental demonstration, to a large area to promote, need to go through several aspects to mobilize a lot of power. Over the years, many cultivars promoted in the production process have neglected the good methods of law and pushed them together. They only emphasized the characteristics and characteristics of the elite. The end of the yield was high, the resistance was poor, the cultivation management was neglected, Not to establish seed to stay in the land, resulting in mixed species, pests and diseases spread each other, but not for comprehensive prevention and control and other reasons, so that a new variety in production can not use a few