Method for identifying paddy rice kind high temperature resistance performance

An identification method and high-temperature-resistant technology, applied in horticultural methods, botanical equipment and methods, instruments, etc., can solve the problem of inability to accurately reflect differences in high temperature resistance of rice varieties, inability to truly and correctly evaluate rice varieties, and inability to detect multiple varieties. Temperature response curve and other issues, to achieve stable and reliable processing conditions and good repeatability of results

Inactive Publication Date: 2016-06-01
YANGTZE UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used method of rice high temperature tolerance is the artificial climate chamber identification method. Generally, rice is planted in pots, and the artificial climate chamber is used to set a specific temperature for temperature treatment during the critical growth period. Its sens...

Method used

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  • Method for identifying paddy rice kind high temperature resistance performance
  • Method for identifying paddy rice kind high temperature resistance performance

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Embodiment 1

[0032] S1, Determination of participating varieties and adjustment of growth period

[0033] Calculate the upper limit of the number of varieties that can be identified at one time based on the number of artificial climate chambers used, the effective use of space, and the potting area of ​​potting materials. The varieties included in the identification scope are N22, Quanliangyou 861, and Mianhui 101. Adjust the growth period and sow in 4 phases, and the expected heading dates are August 1, August 8, August 15 and August 22, respectively.

[0034] S2, sowing in stages

[0035] When sowing, the sowing date of each variety is adjusted according to the growth period and is divided into 4 stages of sowing. Ensure that there are different varieties with consistent growth period progression during temperature treatment.

[0036] S3, transplanted

[0037] The potted plants adopt pots and bowls with a height of 30cm and a diameter of 30cm. The paddy soil topsoil of 0-20cm is sel...

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Abstract

The invention provides a method for identifying paddy rice kind high temperature resistance performance, comprising steps of adopting a phytotron to perform multi-gradient temperature processing during whole the paddy rice flowering period, performing fertilization rate counting on the paddy rice which is processed by various temperatures, and adopting the paddy rice high temperature comprehensive evaluation index to evaluate the high temperature resistance performance of the paddy rice type. The method disclosed by the invention can obtain the high temperature reaction curves of the fertility periods of various types, accurately reflects the real high temperature performance of the paddy rice type and the paddy rice breeding material; diurnal change configuration of each temperature processing simulates the typical regional high temperature weather condition, which enables the environment configuration to be more scientific; and the invention adopts the phytotron as a high temperature processing device, which enables the processing condition to be stable and reliable and enables the result to be good in repetition.

Description

technical field [0001] The invention relates to the technical field of identification and evaluation of rice varieties and germplasm resources, in particular to a method for identifying high temperature resistance performance of rice varieties. Background technique [0002] With the intensification of global warming and the increasing frequency of extreme high-temperature weather, high-temperature heat damage seriously threatens rice production, and there have been frequent incidents of large-scale and severe yield reductions due to heat damage. Studies have shown that the reproductive growth period of rice, especially the flowering period, is a sensitive period for rice heat damage, but at present, the temperature of rice reproductive growth period in many major rice production areas often has weather close to or higher than the sensitive temperature, so rice is resistant to high temperatures. It has become a serious problem that must be seriously faced in production. Seco...

Claims

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Application Information

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IPC IPC(8): G06Q50/02A01G7/00
CPCA01G7/00G06Q50/02
Inventor 田小海穆麒麟张丙林闫浩亮熊勤学
Owner YANGTZE UNIVERSITY
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