Identification and screening method of seedling-stage low-temperature-resistant maize inbred line
A screening method and low temperature-resistant technology, which can be used in measuring devices, instruments, scientific instruments, etc., and can solve the problems of unfavorable identification results, such as accuracy, insignificant differences, and errors.
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[0035] Example 1 A method for identification and screening of low temperature tolerant corn inbred lines at seedling stage
[0036] This example provides a method for identifying and screening low-temperature-tolerant corn inbred lines at seedling stage. Through seedling low-temperature stress tests, 8 maize inbred lines that are mainly used in production in Northeast China were evaluated for low-temperature tolerance at seedling stage. Low temperature resistance of the cross line.
[0037] The corn inbred line seeds were provided by the Corn Research Institute of Northeast Agricultural University. The names and genealogy of test materials are shown in Table 1;
[0038] Table 1 Seeds of 8 maize inbred lines
[0039]
[0040]
[0041] Specific steps are as follows:
[0042] (1) Seed selection: select the neatly growing seeds on the corn cob, remove the head and tail, the seeds are full and consistent in size, a total of 120 seeds; the seeds are divided into 6 groups, 20 seeds in each g...
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