A kind of capsicum self-isolation method

Abstract

Belonging to the technical field of plant breeding, the invention relates to a pepper inbred isolation method, which comprises the steps of: 1) plant selection: obsoleting substandard heterologous strains; 2) blend solution preparation: preparing a blend solution with a sodium alginate concentration of 5-10% and a carboxymethylcellulose sodium concentration of 0.5-2% with deionized water; 3) petal selection: selecting petals about 6-12h before flowering; 4) petal treatment: taking the petals to be treated on one hand lightly and taking the blend solution on the other hand, and soaking the petals in the blend solution till the joint of a calyx and a flower stalk, and making a mark with a color line; 5) management after treatment: identical with the routine field management method of pepperproduction. The pepper inbred isolation method of the invention isolates petals through a flexible film generated by the blend solution, and conducts geitonogamy to a gynoecium and a stamen of a sameflower. Being simple and rapid, the method of the invention can save the labor cost and has high?fruiting rate. Besides, the method in the invention causes no pollution to the environment and agricultural products, and can realize good application effect.

Description

technical field [0001] The invention belongs to the technical field of plant breeding, and in particular relates to a pepper self-isolation method. Background technique [0002] Capsicum is a frequently cross-pollinated crop, mainly self-crossing, but there is a certain amount of natural hybridization, and the natural hybridization rate of different varieties is different. For sweet pepper varieties, the style is short, and the natural hybridization rate is below 5%; for pepper type varieties, the style is long, and the natural hybridization rate is higher than 20%. [0003] Peppers usually bloom from 6 to 8 o'clock in the morning. Generally, they bloom first and then crack. It takes about 3 days for each flower to wither. The viability of stamen pollen was highest on the day of flowering, followed by the day before flowering, and the weakest 2 days before flowering and 1 day after flowering. The active pollen ratios were 85%, 58%, 21.3% and 19%, respectively. The pistil h...

AI Technical Summary

Problems solved by technology

Buds are individually bagged and isolated, which is time-consuming and labor-intensive

The method of wrapping cotton around buds requires that the cotton fibers be wrapped around the buds several times during operation to ensure that the buds are entangled so that the petals cannot be opened during flowering, but at the same time it is also required not to wrap too tightly, otherwise the cotton will not fall off after fruit setting, and the cotton fibers The fruit is entangled, affecting the development of the fruit, and the operation is time-consuming and labor-intensive