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Direct seedling type rice variety regional testing method

A regional test and variety technology, applied in the field of rice farming, can solve the problem of inapplicability of live broadcast, and achieve the effects of improving test efficiency, accurate results and reducing test costs.

Inactive Publication Date: 2012-06-13
CHINA NAT RICE RES INST
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Problems solved by technology

However, the traditional regional tests of rice varieties are carried out by transplanting, and the technical specifications formulated are largely unsuitable for direct seeding.
At the same time, the varieties selected and approved by transplanting regional trials are not necessarily suitable for direct-seeding rice production, and rice varieties suitable for direct-seeding need to be specially screened and cultivated.

Method used

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  • Direct seedling type rice variety regional testing method
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Embodiment Construction

[0023] The specific embodiment of the present invention and comparative test results are discussed below as an example with the comparative test of the direct-seeding type and the transplanted rice variety regional test.

[0024] (1) Materials and methods

[0025] In 2009, the inventor tested 12 varieties of single-season late japonica group (Yongyou 13, Chunyou 658, Bing 03-123, Changyou 07-1, 95you 161, T You 7065, Jialeyou 05-13, Xiangjingyou 575, Suyou 72, Zheyou 12, Changyou 1_CK1, Xiushui 09_CK2) were used as materials, and live-streaming experiments were carried out at the Fuyang Experimental Base of the China Rice Research Institute. Comparative trials of regional trials of transplanted rice varieties. The test was arranged in two adjacent fields with basically the same soil texture, fertility and other conditions, one for live-seeding regional test and the other for transplanting regional test. Both direct seeding and transplanting regional trials were sown on June ...

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Abstract

The invention provides a direct seedling type rice variety regional testing method. The method comprises the following steps: 1) test field preparation; 2) field design; 3) seeding preparation; 4) seed direct seedling; 5) field management; and 6) character examination. Compared with the traditional transplanting type rice variety regional test, the direct seedling type rice variety regional test provided by the invention has the advantages that the test error is low, the breeding period of a sample to be tested is short, the yield level is high, the test cost is reduced and the test efficiency are improved. In short, the method has the advantages of being correct in result, saving cost and enhancing effect. By using the method, a new good rice variety suitable for direct seedling cultivation can be accurately selected.

Description

technical field [0001] The invention belongs to the technical field of rice cultivation, and in particular relates to a set of technical methods for performing regional tests of rice varieties by direct seeding. Background technique [0002] Since the 1990s, with the transfer of rural labor force and the increase of labor costs, as well as the effective application of herbicides and the advancement of modern agricultural technology, the direct-seeding rice production characterized by saving labor and labor, saving costs and increasing efficiency has developed rapidly, especially In my country's southeast coastal economically developed areas, there is a trend of sustained and rapid development. However, the traditional regional tests of rice varieties are carried out by transplanting, and the technical specifications formulated are largely unsuitable for direct seeding. At the same time, the varieties selected and approved for transplanting regional trials are not necessarily...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01G22/22
Inventor 程本义夏俊辉龚俊义杨仕华
Owner CHINA NAT RICE RES INST
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