Wheat hybridizing method

A hybridization method, technology of wheat, applied in the field of wheat hybridization

Inactive Publication Date: 2009-12-16
沈天民
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an improved wheat hybridization method, aiming at the defects of existing wheat hybridizati

Method used

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Embodiment Construction

[0021] figure 1 The schematic flowchart of the wheat hybridization method of the present invention specifically includes the following steps:

[0022] Step 1, select the female parent main ear that grows robustly on the female parent plant, remove the incompletely developed spikelets at the base and the upper part of the female parent main ear, and leave only the first on both sides of each fully developed spikelet. The floret and the second floret, complete the whole ear process;

[0023] Step 2. Cut off one third of each of the first and second florets, so that the three anthers of each of the first and second florets are level with the glume, and the cutting is completed. ingenious process;

[0024] Step 3, removing the three anthers of each of the first floret and the second floret to form a stigma, and putting a transparent cellophane bag on the main ear to complete the emasculation process;

[0025] Step 4. Set aside for 4 to 8 days, and pollinate the mature stigma by...

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Abstract

The invention discloses a wheat hybridizing method which comprises the following steps: selecting a strongly grown main spike on a mother plant, removing stunted spikelet at the base part and the upper part of the main spike of the mother plant, and retaining a first small flower and a second small flower at both sides of each stunted spikelet so as to finish the spike trimming process; cutting off one third of the first small flower and the second small flower to enable three anthers of the first small flower and the second small flower to be level to glumes so as to finish the glume cutting process; removing the three anthers of the first small flower and the second small flower to form stigmas and sleeving a transparent glass paper bag on the main spike of the mother plant so as to finish the castration process; standing for 4 days-8 days and pollinating the grown stigmas in a spike twisting way so as to finish the pollinating process. The inner glume and the outer glume do not need to be pressed in the castration process in a glume cutting way, and the invention has the characteristics of simple and convenient operation, easy mastering, high purity of harvested wheat hybridized seed, good effect, and the like.

Description

technical field [0001] The invention relates to a crop production method, in particular to a wheat hybridization method. Background technique [0002] Wheat is a self-pollinating crop with small flowers and a very low natural hybridization rate. In order to improve the breeding efficiency and promote gene recombination among varieties, artificial sexual hybridization of wheat is the most commonly used method in wheat breeding. However, due to the high requirements of field temperature and relative humidity for wheat flowering, the flowering time of wheat is short (about 15-20 minutes), and the pollen can only survive for 20 minutes under field conditions. In addition, some wheat cultivars are pollinated by closed glans, and the pollen begins to germinate after 1 to 2 hours after the pollen falls on the stigma. Therefore, cross-breeding between wheat varieties is very difficult. [0003] In my country, a method that has been used for a long time is to cut off the awn after...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 沈天民
Owner 沈天民
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