Culture method of phobotaxis insect resisting rice

Abstract

The invention relates to a culture method for phobotaxis insect resisting rice, which comprises the following steps: collecting rice materials, soaking seeds and sprouting, seedling the seeds to a rice seed-bed, and measuring the contents of chlorophyll a and chlorophyll b in leaves at 5 to 7 leaf age before transplanting; selecting and remaining the rice materials the total contents of the chlorophylls of which are lower than 3.5 mg / g and the ratio of the chlorophyll a and the chlorophyll b is greater than 3.3; transplanting single plants to the field without spraying medicine, respectively observing rice leaf roller at the stooling stage, the jointing stage and the heading stage, observing striped rice borer and yellow rice borer at the heading stage, and observing the damage of rice planthopper at flowering period and the mature period; selecting and remaining the rice material insusceptible to the damage of insect pests; evaluating and verifying the total content and the ratio of the chlorophyll a and the chlorophyll b, and the stability for resistance of the rice leaf roller, the striped rice borer, the yellow rice borer and the rice planthopper; and propagating the stable materials to obtain a novel rice material with phobotaxis insect resistance.

Description

technical field [0001] The invention relates to a method for cultivating evasive insect-resistant rice. Background technique [0002] The occurrence of insect pests affects the high and stable yield and quality optimization of rice, and restricts the potential of increasing rice production. In recent years, stem borers and rice planthoppers have exploded across the country, becoming major disasters that seriously threaten the safety of rice production in my country. In order to control the harm of rice pests, due to the lack of new insect-resistant rice varieties in production, we can only rely on chemical control of pesticides, which results in increasingly serious environmental pollution and other problems. [0003] New insect-resistant rice varieties are highly valued at home and abroad because of their environmental friendliness. With the advent and development of transgenic technology, insect-resistant transgenic rice has come out one after another. Bt rice has been ...

AI Technical Summary

Problems solved by technology

Although Bt rice can effectively control lepidopteran pests like commercialized Bt cotton, but because it is a traditional staple food, potential food safety and ecological security issues have attracted much attention and controversy

On the other hand, Bt rice has a limitation that it is only resistant to Lepidoptera pests and lacks resistance to rice planthoppers, etc.