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Mimai No.7 wheat cross-breeding and reproduction method

A technology of hybrid breeding and wheat, which is applied in the fields of botany equipment and methods, application, plant gene improvement, etc., can solve the problem that there is no precedent for the breeding of branched wheat, and achieve high quality and high rate of tillering and earing , Good effect of stable production

Active Publication Date: 2014-01-29
弭尚岭
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the search of 1992-2013, no report on the application of branched wheat to production was found in the 21 years of literature, let alone the precedent of sexual cross breeding of branched wheat Mimai No. 7, which proves the research in this area belongs to the blank stage

Method used

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Experimental program
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Embodiment Construction

[0031] Taking the climate and environment in Northwest Shandong as an example, the implementation method of this hybrid breeding is explained.

[0032] (1) Select parent

[0033] Select the branched wheat Mimai No. 4 as the female parent, and the branched wheat Mimai No. 6 as the male parent to carry out sexual hybridization; the female parent selects the strong main panicle of the plant, leaving only 8-16 spikelets on its upper part, There are only two well-developed 2 florets on each spikelet;

[0034] (2) Castration and pollination

[0035] Detassell the tidied female tassels, and use the method of detasselling by picking herbs. The specific method is: use the thumb and middle finger of the left hand to clamp the whole ear, gently press the inner and outer glumes of the flowers one by one with the index finger, and use the right hand to insert the tweezers. Clamp the three anthers out of the floret. It is best to remove them all at once. Be careful not to damage the stigma ...

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Abstract

The invention relates to a plant breeding and reproduction method, and discloses a Mimai No.7 wheat cross-breeding and reproduction method. The method comprises the steps that: (1) parents are selected, wherein a branched wheat Mimai No.4 is adopted as a female parent, and a branched wheat Mimai No.6 is adopted as a male parent, and sexual hybridization is carried out; (2) emasculation and pollination are carried out, wherein anthers of the female parents are removed in one time; stigmas are mature after 1-4 days, and pollination can be carried out; immature embryos are peeled 18-21 days after pollination, and isolated culture is carried out; and generation-adding breeding and system selection are carried out; (3) generation-adding breeding and system selection are carried out, wherein jarovisation treatment is carried out by using greenhouse in winter or refrigerator in summer; through multiple times of selection, branched hybridized wheat novel breed which is Mimai No.7 with good comprehensive performance is obtained on the basis of a second generation. The breed has the advantages of good lodging resistance, good disease resistance, high yield, and good stability of Mimai No.4, and has characteristics of vigorous growth and good stress resistance of the male parent Mimai No.6. Yield increase can be higher than 20% per mu.

Description

technical field [0001] The invention relates to a plant breeding and propagation method, in particular to a Mimai No. 7 wheat hybrid breeding and propagation method. Background technique [0002] Wheat is the second major food crop after rice in our country. Wheat seeds are the most basic and important means of production in agricultural production. Whether the wheat seeds are good or not is directly related to the level of land benefits. Planting, choose the preferred way to grow and get wheat seeds. Since the wheat breeding work in our country is in the climbing stage, the new wheat varieties bred through the existing technology cannot make a major breakthrough. [0003] The existing wheat variety Mimai 4 has the characteristics of strong lodging and disease resistance, high quality, high yield and good yield stability; the existing wheat variety Mimai 6 has the advantages of vigorous growth and strong stress resistance of the plant . If the hybrid advantage of wheat is...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 弭尚岭
Owner 弭尚岭
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