Quantification method for evaluating heat resistance of different genotypes of rice germplasms in filling period

A quantitative method and technology of heat tolerance, applied in rice cultivation, horticultural methods, botanical equipment and methods, etc., can solve the problems of different degrees of high temperature stress, lack of comparability of heat tolerance results, and difficulty in guaranteeing the simultaneous entry of different genotypes of rice Problems such as the grouting period, to reduce waste of resources and improve efficiency
CN111802192AActive Publication Date: 2020-10-23JIANGXI AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
JIANGXI AGRICULTURAL UNIVERSITY
Publication Date
2020-10-23

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Abstract

The invention relates to the technical field of crop germplasm resource identification and evaluation, and particularly discloses a quantification method for evaluating the heat resistance of different genotypes of rice germplasms in a filling period. The reliability of identifying the heat resistance of the different genotypes of rice germplasms in the filling period by the natural high temperature of a field and the comparability between identification results in different years are utilized. The method has a good application prospect in screening the rice germplasms with the heat resistancein the filling period and cultivating a new rice variety with the heat resistance in the filling period, and is of great significance in improving the rice heat resistance breeding effect and reducing resource waste caused by repeated identification of different research and development units.
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Description

technical field

[0001] The invention relates to the technical field of identification and evaluation of crop germplasm resources, and specifically discloses a quantitative method for evaluating the heat resistance of different genotypes of rice germplasm at the filling stage. Background technique

[0002] Global warming, especially the frequent high temperature in summer, will harm the yield and quality of rice and other crops. In my country, the harm of high temperature and heat damage to rice production mainly occurs in the double-cropping rice area south of the Yangtze River Basin, which is also the main rice producing area in my country. Usually, during the first and middle days of July every year, the sub-high pressure ridges controlling these areas are in a stagnant state, so these areas often maintain high temperature weather for several days or even ten days after the first and middle days of July, and the middle and late July happens to be The grain filling period ...

Claims

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