Method for Improving Pollen Abortion Rate of Male Sterile Line of BNS Wheat Using Lansoprazole

Abstract

The invention discloses a method for improving the pollen abortion rate of male sterile lines of BNS wheat by using lansoprazole. In the main wheat producing areas of the Huanghuai River, temperature-sensitive genic sterile wheat BNS is planted under the condition of sowing in the sterile period, namely 9 From the 23rd of October to the 17th of October, the sterile lines were sown. From the stage of stamen development to the differentiation of pistil and pistil primordia, until the ears of wheat were completely pulled out of the flag leaf sheath, once every 4 days from the first day, the The lansoprazole solution with a mass concentration of 90-360mg / L is sprayed on the whole plant of the BNS plant, and the spraying rate is 50-80L / mu, and other references to the general field cultivation management mode. The present invention adopts lansoprazole solution to process through field cultivation, thereby making the pollen abortion rate of the BNS sterile line close to the full sterile level, and the self-fertilization seed setting rate is 0, reaching the requirement for the sterile line in hybrid wheat production. The invention is relatively simple in operation, low in investment cost, time-saving and labor-saving, and has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of chemical regulation and control of BNS pollen fertility of thermosensitive genic male sterile wheat, and specifically relates to a chemical regulation method for improving the pollen abortion rate of BNS wheat male sterile line by using lansoprazole. Background technique [0002] The utilization of wheat photothermo-sensitive male sterility (PTSMS) is a major advance in the research of hybrid wheat. The wheat light-temperature-sensitive sterile lines discovered in my country, such as ES, C49S, ZP, BS, YS and BNS, have become important test materials for hybrid wheat research. [0003] Thermosensitive genic male sterile wheat BNS was successfully bred by Ru Zhengang in 2002. BNS has the characteristics of complete sterility and complete fertility transformation, and the fertility change trend is: complete abortion-semi-sterility-complete fertility. Low temperature is the main reason for affecting the fert...

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Problems solved by technology

Previous studies have pointed out that the existing chemical andricides such as ethephon can effectively kill males, but after the use of ethephon, there are many problems such as slowing down the development of wheat flowers, difficulty in heading, easy to green and late maturity, and easy to be infected with diseases and insect pests. Other existing chemical andricides are highly toxic to wheat plants, reduce male fertility, and have a strong inhibitory effect on pistil fertility. After artificial assisted pollination, the seed setting rate is low and the grains are not full, and the drug price is high. Therefore, the application of existing chemical andricides in production is limited, and existing chemical hybridization agents are used to overcome the interference of periodic fluctuations in temperature during the sensitive period of fertility conversion on the fertility stability of BNS male sterile lines of thermosensitive genic male sterile wheat At present, there are few reports, and there is no report on the use of lansoprazole to improve the pollen abortion rate of male sterile lines of BNS wheat

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