A kind of artificial pollination breeding method of hybrid masson pine

Abstract

The invention discloses an artificial pollination breeding method of a pinus massoniana hybrid. The artificial pollination breeding method comprises the following steps of 1, selection of masson pine as a female parent, 2, selection of pinus elliottii, pinus elliottii-pinus caribaea hybrid, pinus caribaea and pine moth-resistant pinus massoniana as male parents, 3, collection of male parent pollen, 4, treatment on the male parent pollen, 5, bagging and artificial pollination by a home-made pollination tool, and 6, cultivation. Through the artificial pollination breeding method, seeds of the pinus massoniana hybrid having the excellent and stable properties of straight trunk, fast early-stage growth rate, high rosin yield and pest and disease resistance are obtained. The artificial pollination breeding method solves the problems of open pollination in a pinus massoniana seed garden and improves crossbreeding efficiency. The artificial pollination breeding method is a complete artificial pollination breeding method, has simple processes, is practical, has a low cost, low requirements on operators, and small influences by a natural environmental factor such as weather, can effectively improve cross pollination efficiency in a pinus massoniana seed garden, can improve accuracy and reliability of cross pollination, can accelerate seed selection of a novel forestall germplasm resource variety, and has good economic, social and ecological benefits.

Description

technical field [0001] The invention relates to plant hybrid breeding, in particular to an artificial pollination breeding method for hybrid masson pine. Background technique [0002] Hybrid breeding is a breeding method that uses the same or different species of organisms with different genetic compositions to cross to obtain the desired phenotype type. The superior traits of the super-parents may, of course, also have a combination of inferior traits of the parents, or disadvantageous traits that the parents do not have. The breeding process is to select individuals that meet the breeding goals from among the many types of hybrid offspring for further cultivation until new varieties with excellent traits and stable quality are obtained. [0003] Masson pine is the main native afforestation tree species in southern my country. It has a wide distribution range and ranks in the forefront of the cultivated area. It has strong adaptability to climate and environment. Its main ...

AI Technical Summary

Problems solved by technology

At present, most of the pollination in the masson pine seed orchards in operation is mainly free pollination by wind, which is greatly affected by natural conditions. If the pollen of the male flowers matures and looses pollen in rainy weather, the pollen cannot diffuse normally and combine with the female flowers, which will lead to abortion of the female flowers and cause the seed garden A large area of ​​production is reduced, which is very unfavorable for the selection of excellent strains of Masson pine

In addition, compared with foreign pine such as slash pine, wet plus pine and Caribbean pine, masson pine has poor straightness in dry form, slow growth in the early stage, and poor resistance to pine caterpillars, pine poisonous worms and other insect pests.