A kind of breeding method of heat-resistant capsicum rootstock of different physiological races resistant to blight

A physiological race and anti-epidemic technology, applied in botany equipment and methods, horticulture, application, etc., can solve complex and lengthy breeding process and other problems, and achieve the goal of improving comprehensive agronomic traits, speeding up the process, and low breeding cost Effect

Inactive Publication Date: 2016-03-09
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, breeding varieties with good quality, good comprehensive agronomic traits, high disease resistance and heat tolerance is a complicated and lengthy breeding process

Method used

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  • A kind of breeding method of heat-resistant capsicum rootstock of different physiological races resistant to blight
  • A kind of breeding method of heat-resistant capsicum rootstock of different physiological races resistant to blight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] (1) Breeding of pure pepper lines and heat-resistant pepper lines that are resistant to disease race 1 and race 2

[0108] Selection of anti-epidemic race 1 (ph1) and physiological race 2 (ph2) pepper strains PBC495 (Zhang Yingli, Gong Zhenhui, Li Dawei, Huang Wei, Lu Minghui, Chen Rugang. Identification of the pathogen of pepper blight in Shaanxi and indoor screening of control agents, Northwest Agriculture Journal, 2009, 18(5): 336-340) and heat-resistant pepper strain B35 [ZhuWei, LuMinghui, GongZhenhui, and ChenRugang. Cloning and Expression under Heat Stress of ASmall Heat ShockProtein GeneCaHSP24 from Pepper [J]. African Journal of Biotechnology, 2011, 10 (25): 4968-4 (976): Northwest Provided by the Pepper Research Group, College of Horticulture, Agriculture and Forestry University. Soak their seeds in a warm soup at 55°C for 20 minutes, soak in clear water for 5 hours, and in a dark artificial climate box at 28°C for sprouting. After 4 days, the seeds are exposed t...

Embodiment 2

[0153] (1) Breeding of pure pepper lines and heat-resistant pepper lines of resistant physiological race 1

[0154] Selection of anti-epidemic race 1 (ph1) pepper strain PBC137 [Zhang Yingli, Gong Zhenhui, Li Dawei, Huang Wei, Lu Minghui, Chen Rugang. Identification of the pathogen of pepper blight in Shaanxi and indoor screening of control agents, Northwest Agricultural Journal, 2009, 18 (5) :336-340] and heat-resistant pepper strain B35 [ZhuWei, LuMinghui, GongZhenhui, and ChenRugang.CloningandExpressionunderHeatStressofASmallHeatShockProteinGeneCaHSP24fromPepper[J].AfricanJournalofBiotechnology, 2011, 10(25): 4968-4976, College of Forestry Science and Technology of Northwest Agricultural University of Horticulture] provide. Soak their seeds in a warm soup at 55°C for 20 minutes, soak in clear water for 5 hours, and in a dark artificial climate box at 28°C for sprouting. After 4 days, the seeds are exposed to white and sown in the plug; after germination, spray the seedlings wi...

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Abstract

The invention discloses a breeding method for disease-resistant and heat-resistant capsicum annuum L. rootstocks of different physiological races. According to the method, the advantages of capsicum annuum L. heterosis breeding and grafting technologies are integrated, and the disease resistance and the heat resistance of varieties with excellent comprehensive characters but poorer disease resistance and heat resistance can be remarkably improved by the bred disease-resistant and heat-resistant capsicum annuum L. rootstocks; the method has the advantages of simplicity in operation, breeding time saving, low breeding cost and the like; by the method for improving the disease resistance and the heat resistance of excellent varieties by breeding the rootstocks, the resistance breeding process of capsicum annuum L. is greatly accelerated.

Description

Technical field [0001] The invention belongs to the field of vegetable breeding, and relates to a breeding method for pepper rootstocks, in particular to a breeding method for heat-resistant pepper rootstocks resistant to different physiological races of epidemic diseases. It cleverly combines heterosis breeding technology with grafting technology, and breeding The disease-resistant and heat-resistant rootstocks can effectively improve the disease resistance and heat resistance of peppers with excellent comprehensive agronomic traits but poor disease and heat resistance. Background technique [0002] Pepper (Capsicumannuum L.) is a typical "temperature-loving and heat-labile" plant. Heat stress will occur when the ambient temperature of the pepper grows above 32℃, leading to poor pollination and fertilization, flower and fruit drop, and fruit setting rate in severe cases. Decrease to 10%-20%, which will ultimately affect the quality and yield of pepper. In my country, greenhouse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/06
Inventor 巩振辉田士林张莹丽郭猛贺玉梅
Owner NORTHWEST A & F UNIV
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