Treatment agent for increasing hybridization setting percentage of unhusked rice and method

A technology of treatment agent and seed setting rate, which is applied in the field of millet hybridization, can solve the problems of prolonging the growth period and failing to improve the seed setting rate of millet hybridization, and achieves the effects of good repeatability, easy mastery, and wide application range

Active Publication Date: 2019-08-02
HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Researchers at home and abroad have used methods such as prolonging the growth period, spraying foliar fertilizers, increasing source-sink flow coordination, treating stigmas with organic solvents, temperature treatments, and plant growth substances to improve the hybrid seed-setting rate of millet. Although some progress has been made, there is no progress. It can significantly increase the hybrid seed setting rate of millet

Method used

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  • Treatment agent for increasing hybridization setting percentage of unhusked rice and method
  • Treatment agent for increasing hybridization setting percentage of unhusked rice and method

Examples

Experimental program
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Effect test

Embodiment 1

[0044] (1) Parent planting. The varieties (lines) that are scheduled to be parents are sown as adjacent as possible. When sowing, the male parent is sown in stages so that the parental parent can meet at the flowering period.

[0045] (2) Spray boric acid. Spray boric acid aqueous solution with a concentration of 5g / L during the millet grouting period.

[0046] (3) Whole ears. When the female parent begins to bloom, select robust ears, cut off the upper, lower and middle spikelet yards, and keep 6 to 8 spikelet yards. Cut off the bristles of the spikelets, clip off the flower buds that have opened and are underdeveloped with tweezers, and leave only the healthy flower buds that are about to open, and bag them.

[0047] (4) Castration. Commonly used emasculation methods for millet include collective emasculation by warm scalding and artificial emasculation of single flowers. The emasculation method adopted in the present invention is the day before hybridization, remove the...

Embodiment 2

[0050]In 2017, the experiment was carried out at Yinlang Ranch in Daqing City, Heilongjiang Province (124°44'E, 56°29'N). The soil type is sandy loam, and the previous crop is corn. Millet varieties (lines) Longgu 33, Drill White, Nenxuan 15, Yangu 1, Chigu 6, PZ65Ljwl, PZ55dw2, Chigu 6, Nenxuan 15, pz652014 and Yugu 1 were sown in the field in mid-May. According to the hybrid combinations shown in Table 1, the parents were planted adjacent to each other. In mid-to-late July, after the earing of the millet and before a large number of flowering, select strong ears from the female parent, cut off the upper and lower spikelets with scissors, and trim the remaining spikelets sparsely and scattered, and then cut the remaining spikelets. The florets that have already bloomed on the spikelets and the florets that bloom late are picked up one by one with a sharp beaker, carefully avoiding the bristles (such as tweezing the bristles will damage the remaining florets), and only one on...

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Abstract

The invention relates to a treatment agent for increasing the hybridization setting percentage of unhusked rice and a method and belongs to the technical field of unhusked rice hybridization. The treatment agent for increasing the hybridization setting percentage of unhusked rice comprises a compounded water solution of gibberellins, indoleacetic acid and naphthylacetic acid; the mass concentration of the gibberellins is 10-30mg/L; the mass concentration of the indoleacetic acid is 0.1-0.5mg/L; and the mass concentration of the naphthylacetic acid is 100-150mg/L. With the combination of the gibberellins, the naphthylacetic acid and the indoleacetic acid, the treatment agent provided by the invention is capable of increasing the hybridization setting percentage of unhusked rice.

Description

technical field [0001] The invention relates to the technical field of millet hybridization, in particular to a treatment agent and a method for improving the seed setting rate of millet hybridization. Background technique [0002] Millet (Setaria italica Beauv.) is an important crop in the arid and semi-arid regions of northern my country. It has the characteristics of drought resistance, swelling tolerance and strong adaptability. Millet is a self-pollinated crop with small flower organs and little pollen. When hybridized, it often shows hybrid incompatibility and low outcross seed setting rate. Hybrid millet can make full use of heterosis, greatly increase the yield of millet, and enhance its ability to resist adversity. [0003] Researchers at home and abroad have used methods such as prolonging the growth period, spraying foliar fertilizers, increasing source-sink flow coordination, treating stigmas with organic solvents, temperature treatment, and plant growth substan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/12A01N45/00A01N37/10A01N43/38A01P21/00A01H1/02A01G7/06
CPCA01G7/06A01H1/02A01N37/10A01N43/12A01N43/38A01N45/00
Inventor 姜丽丽苗兴芬孙丽芳王霞杜吉到王玉凤
Owner HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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