Controllable crossbreeding corn producing method

A production method and corn technology, applied in the directions of botanical equipment and methods, application, and plant genetic improvement, can solve the problems of expensive, labor-intensive, and time-consuming, and achieve the effects of ensuring purity, ensuring high yield, and high impurity removal efficiency.

Inactive Publication Date: 2006-09-06
BEIJING KINGS NOWER SEED S&T
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AI Technical Summary

Problems solved by technology

In order to ensure the purity of seeds, various identification methods such as grain shape, seedling appearance and field plot planting are used for the self-selected corn seeds used in production at present, but it is difficult to actually use them in production, which is time-consuming, labor-intensive, and expensive. many problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The entire process of hybrid corn production that can be monitored includes the following steps:

[0013] Maize self-selected line with yellowing-to-green marker: Take the self-selected line H-lf1 with yellowing-to-green marker selected from the main corn self-selected line Yellow C as an example. The leaf color of the seedlings of H-lf1 is obviously different from the normal green yellow C and other common maize varieties. The 1-3 leaves are yellow, and the 4-6 leaves can return to normal green. In terms of growth characteristics before turning green, due to the yellowing of the leaves, the growth is thin. After turning green, the leaf color is normal green and the growth is normal. The leaves of the hybrid seedlings prepared by the self-selected line H-lf1 are green, and the leaves of the self-selected line breeding seedlings are yellow.

[0014] Efficient assisted impurity removal in seed propagation: the self-selected line H-lf1 with a yellow-to-green mark is prop...

Embodiment 2

[0018] Maize self-selected line with leaf edge yellowing to green marker: Take the self-selected line X-lf1 with leaf edge yellowing to green type selected from the main corn self-selection line X178 as an example. The leaf color of X-lf1 seedlings is obviously different from the normal green X178 and other common maize varieties. The 1-3 leaves show yellowing of the leaf edge, and the 4-6 leaves can return to normal green. In terms of growth characteristics before turning green, due to the yellowing of the leaf edges, the growth is thin. After turning green, the leaf color is normal green and the growth is normal. The leaf color of the hybrid seedlings prepared by the self-selected line X-lf1 is normal green, and the leaf color of the self-selected line breeding seedlings is yellow at the edge of the leaf.

[0019] Efficient auxiliary removal of impurities in seed propagation: the self-selected line X-lf1 with the mark of leaf edge yellowing and turning green is propagated i...

Embodiment 3

[0023] Maize self-selected line with leaf-edge albino-turned-green marker: Take the self-selected line Z-lf1 with leaf-edge albino-turned-green marker selected from the main corn self-selected line Zheng 58 as an example. The leaf color of Z-lf1 seedlings was obviously different from the normal green Zheng 58 and other common maize varieties. The 1-3 leaves showed leaf edge albinism, and the 4-6 leaves could return to normal green. In terms of growth characteristics before turning green, due to the albinism of the leaf edges, the growth is thin. After turning green, the leaf color is normal green and the growth is normal. The leaf color of the hybrid seedlings prepared by the self-selected line Z-lf1 was normal green, and the leaf color of the self-selected line breeding seedlings was albino at the edge of the leaves.

[0024] Efficient assisted impurity removal in seed propagation: the self-selected line Z-lf1 with leaf edge albino to green markers is propagated in the same ...

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Abstract

The controllable hybrid corn producing process includes the following steps: preparing hybrid seed via selecting corn self selecting line with green converting leaf color mark; propagation breeding and auxiliarily roguing to eliminate false self selecting line seedling without leaf color mark while reserving true self selecting line seedling with leaf color mark; and roguing in field production via drawing off seedling with leaf color mark while the seedling grows to 1-3 leaves. The said production process of monitoring hybrid corn is saving in time, high in roguing efficiency.

Description

technical field [0001] The invention relates to a monitorable hybrid corn production method. Background technique [0002] Seed purity is the basis for high crop yield and the decisive factor for production promotion. In order to ensure the purity of seeds, various identification methods such as grain shape, seedling appearance and field plot planting are used for the self-selected corn seeds used in production at present, but it is difficult to actually use them in production, which is time-consuming, labor-intensive, and expensive. Many questions. Contents of the invention [0003] The purpose of the present invention is to provide a monitorable hybrid corn production method to effectively monitor each production process of the hybrid corn. [0004] The monitorable hybrid corn production method of the present invention is characterized in comprising the following steps: [0005] 1) select a corn self-selected line with a green-turning leaf color mark to prepare a hybr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
Inventor 吴殿星舒庆尧
Owner BEIJING KINGS NOWER SEED S&T
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