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Fagopyrum esculentum moench hybrid seed production method

A technology for hybrids and sweet buckwheat is applied in the field of seed production of sweet buckwheat hybrids, which can solve the problems of insignificant heterosis, impact on yield improvement, and imperfect sweet buckwheat methods and technologies, and achieves increased fruiting, improved activity and improved performance. The effect of dispersibility and high production efficiency

Inactive Publication Date: 2021-06-11
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its own genetic characteristics, the means and techniques for utilizing heterosis in sweet buckwheat are not yet perfect.
At present, the breeding varieties of sweet buckwheat are mainly mixed selection, the heterosis is not obvious, and the yield increase is affected

Method used

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  • Fagopyrum esculentum moench hybrid seed production method

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Effect test

Embodiment 1

[0028] A seed production method of sweet buckwheat hybrids, comprising the following steps:

[0029] (1) Select parents: select parents with complementary traits, and the parents are varieties selected from different countries or regions;

[0030] (2) Isolation environment: including space isolation and time isolation; the space isolation means that no other sweet buckwheat is planted in a space greater than 500 meters; the time isolation is 55-65 days earlier than the field sweet buckwheat sowing period;

[0031] (3) Interlaced planting and staggered planting: The interlaced planting is specifically as follows: ridge planting, furrow planting, female parent row number: male parent row number = 1:1, wherein, the row spacing is 50-60 cm, the plant spacing is 15-20 cm, and the row spacing is 50-60 cm, and the row spacing is 15-20 cm. High 10-15cm; The staggered sowing is that the male parent is divided into two phases of sowing, and the second phase of the male parent is sowed a...

Embodiment 2

[0040] A seed production method of sweet buckwheat hybrids, comprising the following steps:

[0041] (1) Selection of parents: Sweet buckwheat material 9976 is used as the female parent, and Japanese white-flowered buckwheat material Hokkaido is used as the male parent; compared with the sweet buckwheat material Hokkaido, 9976 is a bred variety with safflower, high plant height, and easy to lodging. It was produced by Yulin, Shaanxi The local sweet buckwheat material system is selected and bred; compared with 9976, the male parent Hokkaido is a Japanese sweet buckwheat variety introduced in my country, with white flowers, low plant height, and lodging resistance; (2) Isolation environment: including space isolation and time isolation; The space isolation is not planting other sweet buckwheat in a space greater than 500 meters; the time isolation is 55 days earlier than the conventional sweet buckwheat sowing period;

[0042] (3) Interlaced planting and staggered planting: the in...

Embodiment 3

[0051] A seed production method of sweet buckwheat hybrids, comprising the following steps:

[0052] (1) Selection of parents: Shaanxi Dingbian safflower buckwheat was used as the female parent, and Russian sweet buckwheat Shinano was used as the male parent; compared with sweet buckwheat Shinano, Shaanxi Dingbian safflower buckwheat had a lower plant height, safflower flower color, and early maturity; Compared with safflower buckwheat in Dingbian, Shaanxi, the plant height of sweet buckwheat Shinano is higher, the flower color is white, and it matures late;

[0053] (2) Isolation environment: including space isolation and time isolation; the space isolation means that no other sweet buckwheat is planted in a space greater than 500 meters; the time isolation is 65 days earlier than the conventional sweet buckwheat sowing period;

[0054] (3) Interlaced planting and staggered planting: the interlaced planting is specifically as follows: ridge planting, furrow planting, female p...

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Abstract

The invention discloses a fagopyrum esculentum moench hybrid seed production method. The method comprises the following steps of (1) selecting parents: selecting the parents with complementary characters; (2) performing environment isolation including space isolation and time isolation; (3) performing alternate-row planting and period-staggering sowing; (4) covering a reflective film between rows in an initial flowering period; (5) removing special-shaped flowers; (6) performing topping: topping the female parent row to remove apical dominance; (7) performing fertilizing; (8) performing supplementary pollination; (9) removing the male parent: after the flowering period of the female parent is finished, removing the male parent; and (10) performing harvesting and after-ripening threshing. According to the seed production method provided by the invention, the activity and dispersibility of male parent pollen are improved, the fecundity of the female parent is improved, and the loss rate in the maturing period is reduced; the method is simple to operate, low in seed production cost, high in production efficiency and obvious in heterosis; and the simple, convenient and feasible method is provided for the advantage utilization of fagopyrum esculentum moench hybrid seeds.

Description

technical field [0001] The invention belongs to the field of breeding and seed production, and in particular relates to a seed production method of sweet buckwheat hybrids. Background technique [0002] Sweet buckwheat is mainly planted in the areas along the Great Wall in my country, with a planting area of ​​about 8 million mu, occupying an important position in my country's crop layout. Since the 1930s, countries all over the world have used hybrid vigor to promote hybrid varieties of corn, sorghum and rice as an important method to increase crop yield. However, because of its own genetic characteristics, the methods and techniques for utilizing heterosis in sweet buckwheat are not yet perfect. At present, the breeding varieties of sweet buckwheat are mainly mixed selection, the heterosis is not obvious, and the yield increase is affected. In order to meet the demand for seeds of sweet buckwheat in my country and achieve the goal of increasing and high yield of sweet bu...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 屈洋冯佰利王鹏科高金锋高小丽杨璞杨清华罗艳李境王可珍马雯
Owner NORTHWEST A & F UNIV
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