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Method for improving seed production efficiency of luffa acutangula roxb by utilizing flowering delay specific material

A technology for loofah and loofah is applied in the field of agricultural seed production, which can solve the problems of rising cost of seed production, and achieve the effects of cost saving, excellent comprehensive properties, and guaranteeing purity.

Active Publication Date: 2016-07-06
肇庆全发农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general solution is to hire more workers. However, with the continuous increase of workers' wages, the cost of seed production is increasing year by year.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 Cultivation of flowering delayed loofah inbred line F224 and establishment of seed production method

[0020] Interspecific hybrid F1 plants were obtained by crossing the excellent ribbed loofah "Yagang loofah" as the female parent and the common loofah "Sanyezaoyoujia loofah" as the male parent. In Guangzhou, "Yagang Loofah" blooms from 16:00 to 18:00 in the afternoon, "Sanyezaoyoujia Loofah" blooms from 4:00 to 6:00 in the morning, and the F1 plants of the two hybrids bloom late at night from 22:00 to 23: 00 blossom.

[0021] BC1F1 seeds were obtained by backcrossing the interspecific F1 plants as the female parent and "Yagang Luffa" as the male parent. Plant about 100 BC1F1 plants, use "Yagang loofah" as the male parent, continue backcrossing, and mix BC2F1 seeds. Randomly select a batch of BC2F1 seeds for sowing, plant about 100 BC2F1 plants, continue to use "Yagang loofah" as the male parent for backcrossing, and mix BC3F1 seeds. Randomly select a bat...

Embodiment 2

[0027] Embodiment 2 Utilizes F224 to carry out small area seed production experiment

[0028] In the Baiyun Experimental Base of the Vegetable Research Institute of Guangdong Academy of Agricultural Sciences, the selected excellent inbred line F224 of loofah with ribs with delayed flowering time was used as the female parent, and the excellent inbred line of loofah with ribs was used as the male parent, and 20 plants were planted. There are 4 rows of female parent and 4 rows of male parent (row length 5 meters, row spacing 1 meter, plant spacing about 40cm). Seed production is carried out by artificial pollination, that is, during the flowering period, at 4:00-4:30 pm every day (at this time, the pollen is mature and will soon loosen, and the pollination effect is better). The plants are artificially pollinated, and after pollination, the flowers are listed. For the conventional seed production method, the worker must stop working when the female flower of the female parent...

Embodiment 3

[0029] Embodiment 3 utilizes F224 to carry out field seed production experiment

[0030]Guangdong Kenong Seed Industry Co., Ltd. uses F224 for field seed production in the loofah seed production base in Zhanjiang, Guangdong. The isolation of the seed production field is in good condition, and there is no loofah planting within 5 kilometers around. The base covers an area of ​​15 mu. The excellent inbred line F224 of ribbed loofah with delayed flowering time is used as the female parent, and the inbred line is used as the male parent. The male parent and the female parent are planted adjacent to each other. The planting volume is about 12 mu. The method of artificial detasseling is used for seed production, that is, during the flowering period, at 3:00-3:30 pm every day, workers are organized to remove the male flower buds of the female plant, and when the female flowers are open, artificial pollination combined with insect pollination completes the hybridization. After the...

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PUM

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Abstract

The invention discloses a method for improving seed production efficiency of luffa acutangula roxb by utilizing a flowering delay specific material. The method comprises the following steps: introducing a flowering gene of luffa cylindrixa roem into the luffa acutangula roxb through distant hybridization, multi-generation backcrossing and selfing breeding and cultivating an excellent luffa acutangula roxb selfing line of which the flowering time is delayed for 0.5-1 hour, wherein the selfing line is excellent in comprehensive character and high in combining ability and simultaneously and effectively solves the problems of distantly-hybridized progeny fruit bitterness, hybrid dysgenesis and other reproductive isolations. The selfing line is taken as a female parent for hybrid seed production, so that the working time of removing male flowers of the female parent can be delayed in the seed production practice, therefore, the removal efficiency of the male flowers of the female parent is improved, and the purity of a hybrid is ensured; meanwhile, the effective working time of workers can be increased, the cost is lowered, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural seed production, and in particular relates to a method for improving the efficiency of ribbed loofah seed production by using flowering delay metamaterials. Background technique [0002] The ribbed loofah has obvious heterosis, and most of the varieties currently on the market belong to the first generation of hybrids. However, loofah with ribs is a typical cross-pollination crop. The current general breeding idea is that breeders select two inbred lines with high combining ability by breeding excellent inbred lines to artificially cross to produce hybrids. The specific operation method is: select a plot with good isolation conditions, plant the male parent and the female parent in different fields, during the flowering period, before the female flower of the loofah is opened, manually remove all the male flower buds on the female plant, wait until When the female flower is open, the pollen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 罗剑宁吴海滨龚浩何晓莉郑晓明罗少波张长远陈俊秋
Owner 肇庆全发农业发展有限公司
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