Method for spraying field exogenous hormone for improving vigor of hybrid rice seeds

An exogenous hormone, hybrid rice technology, applied in the directions of horticultural methods, botanical equipment and methods, plant genetic improvement, etc., to achieve the effects of improving seed vigor, improving seed production yield, and quick results

Active Publication Date: 2015-09-02
ZHEJIANG FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This application focuses on the spraying of an exogenous hormone at the filling stage in the process of hybrid rice seed produc

Method used

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  • Method for spraying field exogenous hormone for improving vigor of hybrid rice seeds
  • Method for spraying field exogenous hormone for improving vigor of hybrid rice seeds
  • Method for spraying field exogenous hormone for improving vigor of hybrid rice seeds

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Embodiment Construction

[0021] The present invention is described in detail below in conjunction with embodiment: the field exogenous hormone spraying method that this improves hybrid rice seed vigor is carried out as follows:

[0022] (1) Parent planting and artificial assisted pollination: select the parent seeds with good purity and high quality, and raise seedlings respectively after soaking the seeds to accelerate germination. 7 days;

[0023] (2) Preparation of exogenous hormone spraying agent:

[0024] Using an aqueous solution of exogenous hormones as a spraying agent, the mass-volume ratio concentrations of hormones and clean water are:

[0025] ①Gibberellic acid (GA 3 ) spray concentration is 0.025-25mg / L,

[0026] ②Indole acetic acid (IAA) spray concentration is 10-20μmol / L,

[0027] Choose one of the two exogenous hormone spraying agents;

[0028] (3) Determination of the amount of spraying agent and the ratio of spraying area: according to the amount of spraying agent actually spray...

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Abstract

The invention discloses a method for spraying field exogenous hormone for improving the vigor of hybrid rice seeds. The method comprises the following five steps of firstly, planting parents and carrying out artificial supplementary pollination; secondly, preparing an exogenous hormone spraying agent; thirdly, determining the dosage of the spraying agent and the spraying area ratio; fourthly, determining the spraying date; and fifthly, spraying the exogenous hormone. When the method is used for carrying out exogenous hormone spraying treatment on female rice ears of hybrid rice at the grain filling stage, the vigor of the F1-generaiton seeds of the hybrid rice is effectively improved, and meanwhile the yield of the hybrid rice is also increased, so that grains are to be harvested in the next year. The method is simple and convenient, short in period, low in cost and rapid in taking effects and can also be used as a supplementary means for breed improvement to a certain extent.

Description

technical field [0001] The invention relates to a treatment method in the seed production process of crop seeds, in particular to a method for spraying exogenous hormones to field plants, which is beneficial to improving the vigor of hybrid rice seeds. Background technique [0002] my country's rice planting area ranks second in the world, and its total output ranks first in the world. It is a major rice producer; in my country's grain crops, rice accounts for 35% of the planting area and 45% of the total output, ranking first, and China is the first In countries where hybrid rice is widely used in production, hybrid rice accounts for more than 51% of the country's rice planting area and 58% of the country's total rice production, and plays a pivotal role in my country's grain production. [0003] For quite a long period of history, my country has overemphasized the breeding of fine varieties and neglected the production of high-quality seeds, which has greatly affected the f...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01G7/06
Inventor 赵光武陈刚李彬曹栋栋
Owner ZHEJIANG FORESTRY UNIVERSITY
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