Method for poducing transgene seeds of hybrid paddy rice in multiple resistances

Abstract

A process for preparing the seeds of multi-resistance transgenic rice includes transferring the anti-herbicide gene and the anti-borer gene to the restoring line of three-line or two-line crossed rice, transferring the plant hopper-resistant gene to the maintenance line of three-line crossed rice, hybridizing between sterile line and maintenance line, and hybridizing between transgenic restoring line and transgenic sterile line.

Description

technical field [0001] The invention relates to a production method of hybrid rice seeds, in particular to a production method of multi-resistance transgenic hybrid rice seeds. Background technique [0002] Rice is the staple food for nearly half of the world's population. About one-third of the world is killed by pests and weeds every year. It is estimated that the economic losses caused are more than 12 million US dollars per year. In order to deal with pests and weeds, about 2 million tons of pesticides are produced every year. For example: Chilo borer and rice planthopper are two major insect pests in northern paddy fields, which can reduce rice yield by 10%-20% every year, and severe cases may even cause crop failure. At present, the main measures to prevent and control insect pests are to use a large number of insecticides such as dimehypo and carbofuran. The annual consumption can reach more than 10 million kilograms, and the value is about 20 million yuan. This no...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the above-mentioned problems in the prior art, and provide a production method for multi-resistant transgenic hybrid rice seeds, which can not only overcome the problem that hybrid rice seeds cannot be produced in a large area due to insufficient purity, but also enhance hybridization. Insect resistance in rice to increase yield