With the research and development of agricultural high-tech, plant growth regulators have become one of the essential means for high-yield cultivation. Most of the growth regulators used in cotton, of which the highest utilization of dilute amines and ethylene. Therefore, cottonseeds that are regulated by dildo-amine and ethephon can be retained.

Diclocamine-regulated cotton seed germination

Mitochondrial regulation of cotton, from the 80s of last century has begun a test demonstration, local scientific research and production practices have proved that there is no damage to cottonseeds, and there is a tendency to improve germination. According to experiments, soaking seeds with a concentration of 50 ~ 20010-6 concentration of dilute amine solution, the germination potential increased by 2.4% ~ 8.5%, the germination rate increased by more than 1%. Six to eight grams per 667 square meters were sprayed in the field. Soaking seeds with dilute amines increased the germination rate by 2% to 4%.

Ethephon promoted cottonseed cream bloom

For ethephon ripening cotton, 150 grams of ethylene is used per 667 square meters, up to 200 grams; the time is around 20 days before the frost, all the year round in early October. According to the process of cotton boll growth, 20 days after flowering and pollination, embryos have already germinated. At the beginning of October, most of the bells had been full for more than 40 days, and the embryos had good germination ability. As long as you choose to spend the cream before flowering, you can plant it. After flowering and prematurely ripening, excessive cottonseeds cannot be preserved.

Store seed environment to dry before sowing

The ripened cottonseed has few days of fertility, long dormancy period, and can normally germinate for a period of time. Therefore, the seeds should be dried, the moisture content should be about 10%, and the maximum should not exceed 12%; the storage environment should be dry. Seed drying before sowing, lifting dormancy.

Sowing before sowing can improve germination. According to the test, sowing before sunny sowing for 4 to 5 days, drying 7 to 8 hours a day, can increase the germination rate of 11% to 27%.

According to this, it can be considered that: as long as the technical regulations to master the tune and ripening technology, choose to spend before the frost, dry storage, drying before sowing, the cotton seed by the regulation of dihynetamine and ethephon ripening can be preserved.

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