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Plant growth regulator

A plant growth regulator, aspirin technology, applied in the direction of plant growth regulators, biocides, animal repellents, etc., can solve the problem that the male sterile line fails to break through the effective range of gibberellin, and achieves Effects of improving pollen utilization rate, increasing panicle exposing rate, and shortening heading and flowering period

Inactive Publication Date: 2005-09-28
丁家启 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these medicaments are generally based on nutrients, and most of them contain a certain proportion of gibberellins, and their functions are mainly to advance the flowering time of the sterile lines, and they often fail to remove the circumcision of the sterile lines and the shaping of the plant type. Break through the effective range of gibberellin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: It consists of A agent and B agent. Agent A contains dimethyltetrachloride, 2,4-D, and starch; agent B contains aspirin. Its content (weight %) is:

[0019] Sodium Dimethyltetrachloride 50-55%

[0020] 2,4-D 5-10%

[0021] Aspirin 28-32%

[0022] Starch 5-10%

[0023] When used, agent A should be used at the beginning of the seventh to eighth stages of panicle differentiation of the sterile lines. Agent B should be used from heading to full heading of sterile lines. Every time every 667m 2 Spray 20-25kg of water, only the female parent, not the male parent. Every 667m 2 The total dosage (including agents A and B) is 65g.

Embodiment 2

[0024] Embodiment 2: It consists of sodium dimethyltetrachloride, aspirin, triadimefon and starch. Its content (weight %) is:

[0025] Sodium Dimethyltetrachloride 45-50%

[0026] Aspirin 5-10%

[0027] Triadimefon 35-40%

[0028] Starch 5-10%

[0029] The use time should be from the seventh stage to the beginning of the eighth stage of the young ear differentiation of the sterile line, every 667m 2 Dosage 65g. When in use, 20-25Kg of water is evenly sprayed at the beginning of the seventh to eighth stages of panicle differentiation of the sterile lines.

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Abstract

The plant growth regulator for breeding rice hybrid consists of methoxone sodium 40-60 wt%, 2, 4-D 5-10 wt%, aspirin 5-30 wt% and starch 5-10 wt% mixed together. Into the plant growth regulator, triazolone in 35-40 wt% may be also added. The plant growth regulator has the functions of promoting the elongation of section below the ear of the sterile line, improving plant structure and ear structure, promoting the sterile line to bloom concentratively, raising the blooming period, etc. and thus can save the consumption of gibberellin, raise the hybrid bearing rate and increase hybrid yield.

Description

technical field [0001] The invention relates to a plant growth regulator, which is suitable for hybrid rice propagation and seed production growth regulation. Background technique [0002] Due to the inherent genetic and physiological characteristics of hybrid rice breeding and seed production male sterile lines, there are common bad outcrossing habits such as short plant, heavy neck, late flowering and scattered scattered, which are very unfavorable for outcrossing. At present, the way to solve this problem is mainly to use exogenous gibberellin treatment. Gibberellins promote the elongation of stem nodes and leaf sheaths of rice plants mainly by promoting cell elongation and cell division. With the increase of the dosage of gibberellin and the improvement of the use technology, it has played an important role in reducing the necking of the sterile line, adjusting the flower position of flowering time, increasing the rate of stigma exposure, and increasing the fruiting and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N39/02
Inventor 丁家启高剑波付正洪
Owner 丁家启
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