Hybridization breeding method of Chinese chestnuts

Abstract

The invention relates to a hybridization breeding method of Chinese chestnuts, belonging to the technical field of hybridization breeding. The hybridization breeding method is characterized by comprising the following steps: when male parent flowers are in full-bloom stage, collecting male inflorescence of male parents at the time of 10:00-13:00; air-drying the collected male inflorescence until yellow pollen is scattered in dithering, for later use; when the female flower studs of female parents are reversely wound by 45 degrees, selecting sunny days, taking 3-5 air-dried male inflorescence at 7:00-9:00 AM. and flipping the male inflorescence so that pollen is scattered onto the female flower studs. The variety of pollen from male inflorescence collected at 10:00-13:00 is good, the pollination success rate can be effectively increased, and the hybridization success rate can be further provided; the collected and air-dried pollen can be directly used for pollination, without the first collection on pollen in the inflorescence, so that the operating steps can be simplified, the pollination can be completed without use of a pollination tool, and the pollination success rate cannot be reduced.

Description

technical field [0001] The invention relates to a chestnut hybrid breeding method, which belongs to the technical field of hybrid breeding. Background technique [0002] Hybrid breeding technology has always played an important role in horticultural crop breeding. Horticultural crops vary greatly, so hybrid breeding technology is also complex and diverse. It is obviously impossible to achieve high-quality breeding goals by applying a certain hybrid technology. The flowers of chestnut are relatively complex, usually composed of pure male inflorescences and mixed inflorescences, with large amount of pollen, small and light pollen grains, and easy to get wet and agglomerated. Contents of the invention [0003] In order to improve the success rate of chestnut pollination and hybridization, the invention provides a chestnut hybrid breeding method. Technical solutions [0004] A method for crossbreeding Chinese chestnut, comprising the steps of detasseling the female parent,...

AI Technical Summary

Problems solved by technology

[0002] Hybrid breeding technology has always played an important role in horticultural crop breeding. Horticultural crops vary widely, so hybrid breeding technology is also complex and diverse. It is obviously impossible to achieve high-quality breeding goals by applying a certain hybrid technology

The flowers of chestnut are relatively complex, usually composed of pure male inflorescences and mixed inflorescences. The pollen quantity is large, the pollen grains are small and light, and they are very easy to be damp and agglomerated.