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解放以来,我省推广红苕良种,对促进红苕增产起了重要作用。但随着良种数量上的增多,选种和提纯复壮工作没有跟上,造成品种混杂,这对于因地制宜地选用良种、充分发挥良种的增产潜力是很不利的。因此,必须积极开展良种的提纯复壮工作,防止品种混杂和退化。开展良种提纯复壮,就需要了解良种的特征特性和确切地识别不同良种的特征。为此,我们根据对我省主要红苕良种生理特性的了解和对形态特征的观察结果,整理成这个资料,供各地参考。
Since the liberation, promotion of red crab varieties in our province has played an important role in boosting red crab production. However, with the increase in the number of elite species, the selection and purification and rejuvenation work did not keep up, resulting in mixed species, which is suitable for local selection of elite varieties, give full play to yield potential of elite varieties is very unfavorable. Therefore, we must actively carry out purification and rejuvenation of fine varieties to prevent the variety of hybrids and degradation. To carry out purification and rejuvenation of elite, you need to understand the characteristics of the elite and accurately identify the characteristics of different varieties. Therefore, based on our understanding of the physiological characteristics of the major red crabgrass varieties in our province and the observation of morphological characteristics, we compiled this information for reference.