Pollination method capable of improving pollination efficiency of corn

A corn and efficiency technology, applied in the fields of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of difficult to guarantee pollination, difficult to guarantee the effect, affecting the breeding and pollination progress, etc., so as to achieve easy and rapid mastery and improve the effect of fruiting. , the effect of improving breeding efficiency

Inactive Publication Date: 2015-11-18
BEIJING AGRO BIOTECH RES CENT
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Problems solved by technology

In this way, it is better for plants or hybrid combinations with little difference in flowering period, but in the actual breeding process, there are many cases where the flowering period between male and female ears is quite different. , the pollen may have been dispersed, and the pollen viability may also become poor, which not only affects the progress of breeding and pollination, but also makes it difficult to guarantee the effect of fruiting; in case of drought conditions, even if

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  • Pollination method capable of improving pollination efficiency of corn
  • Pollination method capable of improving pollination efficiency of corn
  • Pollination method capable of improving pollination efficiency of corn

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Embodiment 1

[0048] This embodiment combines Figure 1-Figure 7 To illustrate the specific steps of the pollination method of the present invention.

[0049] like figure 1 As shown, a corn plant of a conventional variety includes the following organs: 1 ear, 2 tassels, 3 leaves, 4 stems, and 5 roots. The present embodiment is aimed at the pruning of ear 1, and the length of the ear of corn is 18-23cm.

[0050] The pollination method in the present embodiment comprises the following steps:

[0051] (1) Horizontal cut: from figure 2 At the 201 place, the top of the bract 8 on the ear 1 is cut horizontally to form a horizontal incision 31 (see image 3 ), the horizontal incision is 3-5cm away from the tip of the ear 1, and the principle of pruning is that the filament 6 can be seen from the side of the ear without injuring the ear axis 7.

[0052] (2) The first oblique cut: if Figure 4 As shown, starting from 3cm downwards from the horizontal incision 31, the upper end is bounded by t...

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Abstract

The invention belongs to the field of crop breeding and provides a pollination method capable of improving pollination efficiency of corn. The method comprises steps as follows: firstly, horizontally cutting is performed on bracts of corn ears, and top ends of the bracts are cut off; then oblique cutting and side cutting are performed on the bracts with the top ends cut off, bracts around filaments are removed, and the filaments are exposed; then pollen is immediately sprayed outside the filaments. According to the method, after cutting is finished, lengths of the filaments exposed out of the bracts are 1-2 cm and can just reach the pollination standard, and then pollination can be performed directly; the method is simple and quick, the bracts are only required to be cut for five times, then the filaments can meet the pollination requirement, so that the pollination time is shortened, and the breeding efficiency is improved.

Description

technical field [0001] The invention belongs to the field of crop breeding, and in particular relates to a pollination method for improving corn pollination efficiency. Background technique [0002] Corn is one of the most important cereal crops in the world. It has become a multi-purpose crop such as food, economy, feed, fruits and vegetables, and energy. Since 2006, the planting area and output of corn have maintained the first place in the country [1] . [0003] With the increasing demand for corn in production, corn breeding must keep up with the pace, and bagging pollination is a key link in corn hybrid breeding [2] . In the actual breeding process, due to drought or other reasons, the flowering period is not met (irregular flowering period) is a common problem, that is, the tassel pollination of corn has ended, but the ear ear is too long or the bract is tightly wrapped. However, the silk has not yet been spun, which brings a lot of trouble for pollination [3-4] . ...

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Application Information

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IPC IPC(8): A01H1/02
Inventor 李向龙吴忠义张晓东张中宝张立全闫宝歧
Owner BEIJING AGRO BIOTECH RES CENT
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