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Method for producing hybrid soybean by utilizing aboriginal pollination media

An indigenous and medium technology, applied in the field of crop hybrid seed production, can solve the problems of high cost, low technical efficiency, and difficulty in industrialization, and achieve the effect of low cost and high efficiency

Active Publication Date: 2012-01-04
山西省农业科学院农作物品种资源研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of inefficient technology, high cost and difficult industrialization existing in the existing hybrid soybean seed production technology, and provides a method for producing hybrid soybeans using indigenous pollinators

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] A method for producing hybrid soybeans using indigenous pollinators, comprising the steps of:

[0021] (1) Breeding of male parents with high outcrossing rate: On the hybrid soybean seed breeding and production base that is expected to be established, male parents with an average nectar production of 20.10mm and a nectar refractive index of 22.85 are planted for two consecutive years. 1.6 feet, 7 inches between plants, control the soybean flowering temperature at 26°C, and the total rainfall or irrigation at 60mm. Use the following indigenous pollinators to conduct group pollination. The indigenous pollinators are northern leafcutters and yellow scales Leaf-cutting bee, fine-cutting bee, corn hairy bee, thick-legged hairy bee, small four-striped bee, sharp-browed and light-veined bee, Italian bee, and middle bee, making the male parent an effective visit to pollinate every flower every hour The average number of times is 15.66 times / dot·hour;

[0022] (2) Hybrid seed p...

Embodiment 2

[0024] A method for producing hybrid soybeans using indigenous pollinators, comprising the steps of:

[0025] (1) Breeding of male parents with high outcrossing rate: On the hybrid soybean seed breeding and production base that is expected to be established, male parents with an average nectar production of 20.10mm and a nectar refractive index of 22.85 are planted for three consecutive years. 1.7 feet, plant spacing 6 inches, control the soybean flowering temperature at 25°C, and the total irrigation amount at 40mm. Use the following indigenous pollinators to conduct group pollination. The indigenous pollinators are northern leafcutter and yellow scale leafcutter The average number of effective visits of pollinating insects per flower per hour by the male parent is 15.66 times per flower. Hour;

[0026] (2) Hybrid seed production: On the seed production base where the male parent has been planted for 3 consecutive years, the female parent of the male sterile line is planted ...

Embodiment 3

[0028] A method for producing hybrid soybeans using indigenous pollinators, comprising the steps of:

[0029] (1) Breeding of male parents with high outcrossing rate: On the hybrid soybean seed breeding and production base that is expected to be established, male parents with an average nectar production of 20.10mm and a nectar refractive index of 22.85 are planted for two consecutive years. 1.8 feet, 5 inches between plants, control soybean flowering temperature at 24 ° C, total rainfall or irrigation at 80 mm, use the following indigenous pollinators to carry out group pollination, and the indigenous pollinators are northern leafcutter, yellow scale Leaf-cutter bee, fine-cut leaf-cutter bee, corn hair-striped bee, thick-legged hair-striped bee, small four-striped bee, sharp-browed and light-veined bee, making the average number of effective visits of pollinating insects per flower per hour to the male parent is 15.66 times / Duo·hour;

[0030] (2) Hybrid seed production: On ...

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Abstract

The invention discloses a method for producing a hybrid soybean by utilizing aboriginal pollination media, and relates to a production technology of hybrid seeds of crops, which is used for solving the problems that technical efficiency is low, cost is higher and industrialization is difficult in the existing hybrid soybean seed production technology. The method disclosed by the invention comprises the following steps: (1) breeding male parents with high outcrossing rate: continuously planting the male parents with average nectar volume of 20.10mm and dioptric strength of nectar of 22.85 for 2-3 years on a hybrid soybean seed production base to be established, and carrying out mass pollination by using any aboriginal pollination media; and (2) hybrid seed production: planting female parents and male parents of male sterile lines in an interlacing manner on the seed production base on which the male parents are continuously planted for 2-3 years, and carrying out mass pollination by using any one or more than one of the aboriginal pollination media (shown in the specification). By adopting the method discloses by the invention, natural outcrossing rate can reach 70-100%, seed production yield per Mu reaches 62.4-83.5kg, cost is low, and efficiency is high, thus industrialization can be realized.

Description

technical field [0001] The invention relates to crop hybrid seed production technology, in particular to a method for producing hybrid soybeans with native pollinators. Background technique [0002] At present, the hybrid seed production technology of strictly flower-pollinated soybeans uses artificially raised bees, alfalfa leafcutters, and bumblebees as pollinators, and is realized under the condition of a small area of ​​artificially controlled closed net room, and the outcrossing rate can reach 60%. about. However, because the clover leafcutter and bumblebee are limited in breeding quantity and high in cost, it is difficult to popularize them in a large area. [0003] Chinese patent ZL 02135296.8, titled "Soybean Hybrid Seed Production Method", uses the soybean flower thrips that naturally lives in the soybean flower as the pollen vector of soybeans. The flower thrips can increase the population size through artificial breeding, but pollination alone The effect is limi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 卫保国卫一超师颖张瑞军王兴玲
Owner 山西省农业科学院农作物品种资源研究所
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