Due to the high prices of good-quality insect-resistant cotton varieties, especially hybrid-resistant cotton varieties, many farmers want to save their own crops during the cotton harvest season in order to save money. In this regard, Zhang Peitong, a cotton expert at the Jiangsu Provincial Academy of Agricultural Sciences Economic Crops Research Institute, reminded farmers that in order to ensure the benefits of cotton planting, hybrid insect-resistant cotton must not be kept at will. However, conventional cotton should pay more attention to self-retention. Link.
Zhang Peitong told reporters that as much of the conventional cotton varieties such as Lumianyan28, Xumian21, Sumian26, Sumian27, Kemian4, and Kemian5 are grown in our province, as long as they are properly purified and rejuvenated, It maintains its original nature and can be planted for many years. In the selection process, farmers should try their best to maintain the original species of the varieties, choose the same type of field leaf, the bell is basically the same, the majority of the plants remain seed. However, it is best for farmers not to retain cotton seed because the purity of conventional cotton varieties is usually low, and the yield will be greatly affected. Moreover, the quality of self-retention seeds of conventional cotton varieties is poor. The seeds produced by the regular enterprises are produced according to the procedures and quality standards of the country's fine cotton breeding programs. They use advanced seed processing equipment and strict quality inspection. They are processed through multiple processes, and the varieties are strong, and the cotton seeds are even and tidy and full. This kind of high-quality cotton seed is not achieved by cotton farmers through self-retention.
For hybrid cotton cultivars, farmers are not allowed to keep their own seed, because the seed produced by cross-breeding is the hybrid second generation. If the hybrid second-generation seeds are used in field production, the plants that grow will be severely separated and their plant shapes will be different. , Insect resistance, yield, and quality are greatly reduced. According to experiments, the second generation hybrids of the same species generally have a yield reduction of 15% to 20% compared to the hybrid generation. Therefore, cotton farmers can not plant hybrid anti-insect cotton, and they need to purchase hybrid generation one year for field production.
To this end, Zhang Peitong advises cotton farmers that hybrid insect-resistant cotton should never be kept in order to avoid unnecessary losses.
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