Method for selecting and breeding hybrid stock special for prevention and treatment of watermelon fusarium wilt

A technology for facility watermelon and fusarium wilt, which is applied in the field of breeding of rootstock varieties for grafting facility watermelon, can solve problems such as difficult fruit setting, unround fruit shape, affecting fruit appearance and quality, etc., and achieve easy fruit setting, good affinity, Effects of Controlling Watermelon Fusarium Wilt

Inactive Publication Date: 2005-12-21
ZHEJIANG UNIV
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Problems solved by technology

However, its hybrid parents are gourd varieties of the northern ecological type. They are used in the climate conditions of low temperature and rain in the early stage of protected cultivation in the south, and high temperature in the later stage. whole, affecting fruit appearance and quality

Method used

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  • Method for selecting and breeding hybrid stock special for prevention and treatment of watermelon fusarium wilt

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Embodiment Construction

[0008] The present invention is further described below in conjunction with specific examples.

[0009] Taking the application of hybrid rootstocks for the prevention and treatment of watermelon wilt in the main watermelon producing areas of Zhejiang in 2001-2002 as an example, the steps are as follows:

[0010] 1. Breeding of hybrid rootstock "Huluzhen No. 1"

[0011] 1. Collection of local gourd species resources in Zhejiang, and 3 generations of self-crossing of natural populations in fields with high incidence of watermelon wilt in a specific facility environment.

[0012] 2. Individual plant selection and natural identification screening of resistance are carried out for each selfed offspring.

[0013] 3. In addition to the identification and screening of resistance in the third generation of self-bred, the focus is on the identification and screening of traits such as low temperature tolerance, fruit setting and quality of grafted watermelon.

[0014] 4. Screen out exc...

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Abstract

The method for breeding special hybrid rootstocks for the prevention and treatment of facility watermelon wilt disclosed by the present invention is to select local long gourd varieties in Zhejiang, separate and purify them through at least three generations of self-crossing, identify and screen out the plants that grow steadily under low temperature and low light conditions, and have strong low temperature resistance The inbred line CH-1 was used as the female parent, and the inbred line YH-6 with strong low temperature resistance, drought tolerance and heat resistance was identified and screened as the male parent. A first-generation hybrid was prepared and named "Huluzhen No. 1". The hybrid rootstock selected by the method of the present invention meets the breeding objective, is highly resistant to watermelon wilt, has good grafting affinity with watermelon, and has strong symbiotic affinity, and is suitable for continuous cropping watermelon grafting and cultivation in the south with low temperature and rain in the early stage and high temperature in the later stage, and under facility cultivation conditions Good moisture and heat resistance, stable growth under low temperature and weak light, easy to set fruit, can effectively prevent and control watermelon wilt, increase watermelon production and improve quality.

Description

technical field [0001] The invention relates to a method for selecting rootstock varieties for grafting watermelons in facilities. Background technique [0002] Watermelon Fusarium wilt is a worldwide devastating disease, which can lead to a reduction in watermelon production in mild cases, or wipe out the entire field in severe cases. The disease is particularly serious in watermelon cropping fields, which has seriously restricted the sustainable production of watermelon. At present, the methods for preventing and controlling watermelon wilt mainly include the following: 1. Crop rotation and stubble change. This is the simplest, most economical and effective method, but due to the limitation of land area and the limitation of protected cultivation, it is difficult to realize reasonable crop rotation for many years; 2. Chemical control. Using a variety of broad-spectrum fungicides, such as carbendazim, chlorothalonil, thiophanate-methyl, etc., som...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/06A01H1/02
Inventor 张明方喻景权林燚
Owner ZHEJIANG UNIV
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