A method for improving the yield of broccoli male sterile line seed production

Abstract

The invention relates to a method for increasing the seed production yield of plants, particularly to a method for increasing the seed production yield of a sterile line of broccoli, and belongs to the technical field of plant breeding. According to the method disclosed by the invention, seed sprouting and poikilothermic treatment are adopted, a root tip of a main root is cut off, plug seedling is recombined, and a rectangular container with an opened opening is used for breeding; the moisture content of substrates is regulated through stored water so that the substrates are kept moist, which is more uniform and practical than water spraying, and accumulated water does not exist on the surfaces of plants; at the same time, a nutrient solution is combined for use, young seedlings are promoted to grow healthily, the seedlings are complete and strong, after sowing, the young seedlings of the broccoli have short main roots and many fibrous roots, and after transplanting and field planting, the young seedlings survive quickly and grow quickly, and have high disease resistance and high stress resistance. Through scientific management of lands for growing field crops, regulation of the florescence of male and female parents and regulation of interactive planting and density of the male and female parents, and compared with a traditional method, the seed production yield of the sterile line of the broccoli can be increased by about 30%.

Description

technical field [0001] The invention relates to a method for increasing the yield of plant seed production, in particular to a method for improving the yield of broccoli sterile line seed production, and belongs to the technical field of plant cultivation. Background technique [0002] Broccoli (Broccoli), also known as broccoli and broccoli, is a variety of Brassicaceae broccoli species with green curds and fat and tender flower stems as products. Broccoli is rich in nutrition and has a good flavor. After cooking, the green color remains unchanged, and it is fragrant and tender. It is suitable for boiling, frying, cold dressing, and freezing. Studies in Europe and the United States believe that broccoli contains anti-cancer substances, and regular consumption can prevent cancer and reduce the incidence of cancer. It is known as a high-end health vegetable and has been selling well. With the improvement of people's living standards, the awareness of nutrition and health car...

AI Technical Summary

Problems solved by technology

Existing cultivation methods are open-field seedling cultivation and plug seedling cultivation. The open-field seedling cultivation is extensive, management is difficult, soil-borne diseases are difficult to control, the amount of seeds used is large, and the size of seedlings is obvious. Mutual isolation, few diseases, not easy to infect each other, the nutrient soil in the hole of the hole is loose, which is conducive to the downward growth of the main root, and the fibrous root is relatively weak, which is not conducive to the cultivation of strong seedlings, etc.

Because the seedlings of broccoli are tap roots and have few fibrous roots, it is not conducive to the absorption of nutrients and water by the roots. After transplanting and planting, the growth is slow, and they are not resistant to waterlogging and root diseases. The yield of seed production is low and the benefit is poor.

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