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Application of Silwet L-77 serving as wheat chemical emasculation agent

A technology of 1. silwetl-77 and androstericide, applied in the field of plant breeding, can solve the problems of long operation time, insufficient spraying, low hybrid purity, etc., and achieves the effect of saving male time and being easy to distinguish.

Inactive Publication Date: 2014-10-15
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some fields, either due to phytotoxicity, the yield of seed production is low, or due to insufficient spraying, the purity of hybrids is low
Although the large-scale production of first-generation hybrids by chemical maleification has been applied in some crops such as wheat, there are many defects in this application method, such as long operation time, high cost, phytotoxicity, and unsatisfactory malecidal effect, etc. question

Method used

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  • Application of Silwet L-77 serving as wheat chemical emasculation agent
  • Application of Silwet L-77 serving as wheat chemical emasculation agent
  • Application of Silwet L-77 serving as wheat chemical emasculation agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of wheat chemical andricide: prepare Silwet L-77 solution with distilled water, the concentration is 0.025%-0.075% (V / V).

Embodiment 2

[0032] The experimental site of this experiment is the base of the Agricultural Experiment Station of Shandong Agricultural University.

[0033] Utilize the method for killing males with the aforementioned wheat chemical andricide, the steps are as follows:

[0034] (1) The wheat line CB037 was sown into the experimental field, and the field management was carried out according to the conventional method.

[0035] (2) Wheat enters the booting stage, select the plant when all the flag leaves grow out of the leaf apex (picking the flag) and the leaf ear distance between the flag leaf and the second leaf is 0.5-5 cm, and start There are cavities. Can be easily touched by hand.

[0036] (3) Draw the above-mentioned chemical andricide with a clean syringe, insert the needle into the cavity above the tube rolled into the flag leaf sheath, inject the andricide into the cavity, and fill the cavity so that the liquid just It is advisable to overflow from the top.

[0037] (4) Mark ...

Embodiment 3

[0040] The above-mentioned Silwet L-77 was used as wheat chemical andricide for wheat hybrid seed production. The wheat variety Tynong 18 was sown into the experimental field, and field management was carried out according to conventional methods. Wheat enters the booting stage, and the cavity of the ear can be touched by hand, and the processing begins. Absorb the above-mentioned chemical andricide with a clean needle tube, select the wheat ears when all the flag leaves grow out of the leaf apex (picking flag) and the ear distance between the flag leaf and the second leaf is 0.5-5 cm, and the needle of the syringe is taken from the The top of the cavity formed by the flag leaf sheath is inserted into the cavity, and the andricide is injected into the cavity on the upper part of the ear to fill the cavity so that the liquid just overflows from the upper part. After the treated ears were taken out, the injected wheat ears were selected, and after simple whole ears, the pollen ...

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Abstract

The invention provides an application of Silwet L-77 serving as a wheat chemical emasculation agent. Particularly, Heptamethyltrisiloxane Silwet L-77 modified by organosilicon surfactant polyether is prepared into a solution with the concentration of 0.025-0.075% (v / v) by adopting distilled water and the solution can be used as the wheat chemical emasculation agent. The Silwet L-77 solution provided by the invention has the advantages that the preparation method is simple, the wheat pollen abortion is complete, the use and production cost is low and the Silwet L-77 solution is environment-friendly and easy to popularize.

Description

(1) Technical field [0001] The invention relates to a new application of Silwet L-77, in particular to the application of Silwet L-77 as a wheat chemical andricide, and belongs to the technical field of plant breeding. (2) Background technology [0002] The heterosis of crops can be used to improve crops, such as increasing crop yield and enhancing crop resistance. The method is carried out by relying on a generation of hybrids from pure line crosses. At present, corn, rapeseed, rice, sorghum and other crops have widely used heterosis for seed production. [0003] Wheat is the second largest food crop with the widest distribution and great heterosis in the world. All countries have been trying to find ways and methods to develop and utilize its heterosis. The breakthrough of wheat heterosis utilization theory and application technology will not only greatly enrich the theory and technology of crop heterosis utilization, but also make important contributions to the food saf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N55/10A01P21/00A01G7/06A01H1/02
Inventor 封德顺李娜牛祖彪王洪刚惠文荣宋静高居荣
Owner SHANDONG AGRICULTURAL UNIVERSITY