A method for self-isolation of single flower of small pepper

Abstract

The invention belongs to the technical field of plant breeding, and in particular relates to a single flower selfing isolation method for small chili. The method comprises the following steps: (1) selecting an excellent single plant, namely in the flowering period, selecting the excellent single plant according to a breeding objective, and marking; (2) preparing a capsule shell, namely separating a shell cap from a shell body of a hollow hard capsule shell; (3) selecting a flower bud, namely selecting a large flower bud which is expected to bloom in the next day; (4) treating the flower bud, namely holding the flower bud to be treated by one hand, holding the capsule shell, which is matched with the flower bud in size, by the other hand, slightly sleeving the flower bud with the lower opening of the capsule shell over the widest part of the flower bud, and marking a flower stalk; (5) managing after the treatment in a method which is the same as a conventional field management method for the production of small chili. The capsule shell used in the method is low in cost and does not hurt the flower bud and the flower stalk when being used, the operation is convenient and easy, and the work efficiency is high; moreover, the capsule shell with certain elasticity and permeability does not influence the cracking of anther and pollination, and thus the selfing setting rate of the small chili is high.

Description

technical field [0001] The invention belongs to the technical field of plant breeding, in particular to a single flower self-isolation method of small pepper. Background technique [0002] Small peppers generally bloom first and then crack, and each flower lasts about 3 days from opening to withering. The pollen viability of stamens was highest on the day of flowering, followed by 1d before flowering, and the lowest at 2d before and 1d after flowering. The active pollen proportions were 85%, 58%, 21.3% and 19%, respectively. The pistil has fertilization ability 2d before flowering, but it is the strongest on the day of flowering, followed by 1d before flowering. The pollination and fruit setting rates were 21.4%, 57.1% and 71.4% respectively 2 days before flowering, 1 day before flowering and on the day of flowering, and the fertilization ability of pistil was obviously weakened or lost 2-3 days after flowering. 2-4h after self-pollination, a large amount of pollen germina...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: first, it is troublesome to prepare the solution; second, the flower buds to be treated are large flower buds that are expected to open after 6-12 hours, and the flowering time of peppers is mostly from 6 to 11 in the morning, so the solution needs to be used in the evening or at night. Flower soaking treatment, very inconvenient to operate