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Method for identifying late rice head sprouting flowering period drought-enduring type varieties in field

A technology of heading and flowering stage and drought-tolerant type is applied in the field of identifying drought-tolerant varieties of late rice at heading and flowering stage in the field, which can solve the problems such as the inability to carry out large-scale identification tests and the inability to comprehensively evaluate the drought resistance of the tested materials, and the effect is easy to achieve. , the effect of the effect evaluation

Active Publication Date: 2015-05-20
湖南金色农丰种业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of this method is that certain test equipment is required, and a large number of identification tests cannot be carried out.
[0009] However, this method only uses any single physiological and biochemical indicators and cannot fully evaluate the drought resistance of the tested materials, and these indicators vary due to different growth periods and environments.

Method used

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  • Method for identifying late rice head sprouting flowering period drought-enduring type varieties in field
  • Method for identifying late rice head sprouting flowering period drought-enduring type varieties in field
  • Method for identifying late rice head sprouting flowering period drought-enduring type varieties in field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 Identification of drought resistance of some late rice varieties in Hunan in 2012

[0036] The late rice varieties to be identified in this identification are Xiangwan Xiandao No. 13, Yuzhenxiang, Nongxiang 18, Yueyou 9113, Wufengyou 308, Xiangyou 66, and Qingyou 109, which have been approved for Hunan late rice varieties.

[0037] 1) Selected control variety: Xiangwanxian 12 was selected as the drought-tolerant control variety;

[0038] 2) Sowing seedlings: sow on the same day (June 10, 2012) for late rice varieties to be identified and drought-tolerant control varieties, conventional seedling raising (using the general water seedling raising method);

[0039] 3) Field preparation: A large field is routinely prepared and separated by field soil in the middle to form Field I and Field II with similar conditions. The water intake and drainage of Field I and Field II are independent of each other;

[0040] 4) Transplanting: Transplanting on the same day (July 5...

Embodiment 2

[0053] Example 2 The drought resistance identification of new materials selected and bred in 2013

[0054] The late rice varieties to be identified are C Liangyou 981, Peiliangyou 981, Liyou 1, Liyou 2 and Liyou 3.

[0055] 1) Selected control variety: Xiangwanxian 12 was selected as the drought-tolerant control variety;

[0056] 2) Sowing seedlings: sowing on the same day (June 12, 2013) late rice varieties to be identified and drought-tolerant control varieties, conventional seedling raising (using the general water seedling raising method);

[0057] 3) Field preparation: A large field is routinely prepared and separated by field soil in the middle to form Field I and Field II with similar conditions. The water intake and drainage of Field I and Field II are independent of each other;

[0058] 4) Transplanting: Transplanting on the same day (July 5, 2013), transplanting late rice varieties to be identified and drought-tolerant control varieties in Field I, transplanting 100 p...

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Abstract

The invention relates to the field of crop planting, in particular to a method for identifying late rice head sprouting flowering period drought-enduring type varieties in field. The method comprises the following steps of 1) selecting a check variety, 2) sowing seeds and raising rice seedlings, 3) preparing the field, 4) conducting transplanting, 5) conducting drought treatment, and 6) identifying the drought resistance. According to the method, a late rice head sprouting flowering period variety comprehensive drought resistance formula is formulated, the check variety is set, the effect is easy to evaluate, the method is suitable for identifying a large number of drought varieties, the method is mainly used for identifying the drought resistance of the late rice head sprouting flowering period drought-enduring type varieties, the field simple identification method is adopted, and no complex instrument device is required.

Description

technical field [0001] The invention relates to the field of crop planting, in particular to a method for identifying drought-tolerant varieties of late rice in the heading and flowering stage in the field. Background technique [0002] Drought occurs widely in our country, and it has become more severe in recent years. my country's arid and semi-arid areas account for about 51% of the cultivated land, mainly distributed in Northwest and North China. Although the southern rice region has abundant rainfall, due to the uneven distribution of each month, strong seasonal droughts also occur from time to time. Drought has become the most important obstacle affecting rice production. According to statistics, the reduction in rice production caused by drought can exceed the sum of the reductions caused by other factors. Not only that, the drought also affected rice quality and rice planting area. Therefore, the reasonable evaluation, identification and research on the drought r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G7/00
Inventor 闵军黎用朝李小湘肖小平汤文光潘孝武刘三雄黄海明
Owner 湖南金色农丰种业有限公司
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