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Method for purification and rejuvenation of watermelon local varieties

A technology for purifying and rejuvenating varieties, applied in the fields of soil preparation methods, botany equipment and methods, plant gene improvement, etc., can solve the problems of loss of typicality of varieties, reduction of seed purity, degradation and deterioration of varieties, etc., to speed up the process of purification and rejuvenation, The effect of reducing gene loss and improving watermelon quality

Inactive Publication Date: 2020-09-08
德州市农业科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Local excellent varieties are precious germplasm resources, which are the precious wealth left to us by the predecessors. However, in the long-term cultivation and breeding of improved varieties, due to artificial mechanical mixing or biological mixing caused by natural hybridization, the varieties degenerate and deteriorate. change, reduced seed purity, severely degraded species, and lost the typicality of its species

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0038] A method for purifying and rejuvenating watermelon local varieties, comprising the following steps:

[0039] (1) Seed selection

[0040] The seed selection criteria are: according to the maturity, resistance, plant type, leaf type, female flower node position, female flower node rate, soluble solid content and quality of the ventricle and middle edge of the original variety, the vertical and horizontal diameter of the melon, the background color of the fruit skin, and The main traits of stripe shape, tooth size, fruit surface characteristics, peel hardness, thickness, grain shape, size, number, color, and seedlessness are selected for seed selection;

[0041] Method: Set up a seed nursery, select the original seeds of "Lama" first, and select seeds at the seedling stage, fruiting stage, and maturity stage; at the seedling stage, select strong seedlings with strong growth potential, with the leaf shape and node length of the original variety 40 individual plants were li...

Embodiment 2

[0060] A method for purifying and rejuvenating watermelon local varieties, comprising the following steps:

[0061] (1) Seed selection

[0062] The seed selection criteria are: according to the maturity, resistance, plant type, leaf type, female flower node position, female flower node rate, soluble solid content and quality of the ventricle and middle edge of the original variety, the vertical and horizontal diameter of the melon, the background color of the fruit skin, and The main traits of stripe shape, tooth size, fruit surface characteristics, peel hardness, thickness, grain shape, size, number, color, and seedlessness are selected for seed selection;

[0063] Method: Set up a seed selection nursery, first select the original seeds of "Sanbai", and select seeds at the seedling raising stage, fruiting stage, and maturity stage; at the seedling stage, select strong seedlings with strong growth potential, with the leaf shape and nodes of the original variety. 50 long singl...

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Abstract

The invention discloses a method for purification and rejuvenation of watermelon local varieties and belongs to the field of crop breeding. The method for purification and rejuvenation of the watermelon local varieties comprises seeds selection, seedlings cultivation, field management, hybrid seedlings and weak seedlings removal, pollination, fruits selection, a single plant selection, field selection and expansion reproduction; the purification and rejuvenation progress of local watermelon varieties can be accelerated by the method in the invention, the purified and rejuvenated watermelon seeds have high purity and quality of the watermelon has been significantly improved. The method for purification and rejuvenation of the watermelon local varieties expands population selection, selection is carried out according to representation characteristics of the watermelon, the stability of population heredity is ensured, the occurrence of genes loss is reduced, the number of population is increased rapidly, and yield of original seed is increased; generations of seed reproduction are reduced, hybrid opportunities are reduced, a natural selection effect is reduced; and meanwhile, the progress of purification and rejuvenation of the watermelon local varieties is accelerated, excellent characteristics of the varieties are maintained, and excellent genetic resources with local characteristics are effectively protected.

Description

technical field [0001] The invention relates to the field of crop breeding, in particular to a method for purifying and rejuvenating local watermelon varieties. Background technique [0002] Watermelon is an important fruit worldwide, known as the "King of Summer Fruits" in my country. Dezhou is one of the three famous watermelon producing areas in China, with a long history of cultivation and abundant germplasm resources. The soil in Texas is fertile, with a surface texture of loam, a deep fine-grained layer, and a loose texture. From April to July is the growing season of watermelons in the open fields in Texas. At this time, there is less rainfall, the climate is dry, and the sunlight is sufficient. The soil and climate conditions are very conducive to the growth of watermelons. [0003] Local excellent varieties are precious germplasm resources, which are the precious wealth left to us by the predecessors. However, in the long-term cultivation and breeding of improved ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/05A01B79/02A01H1/02
CPCA01G22/05A01B79/02A01H1/02
Inventor 王友平常培培段青青李腾飞朱金英张自坤贺洪军
Owner 德州市农业科学研究院
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