Field high-flux identification method for bacterial wilt resistance of sesamum indicum varieties

An identification method and anti bacterial wilt technology, applied in the field of disease resistance identification, can solve the problems of low identification efficiency, poor accuracy and repeatability, etc., and achieve real identification results, improve accuracy and repeatability, and save costs. Effect

Active Publication Date: 2017-04-26
INST OF PLANT PROTECTION JIANGXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For this reason, what the present invention aims to solve is that the existing field identification method for resistance to bacterial wilt of sesame varieties has the defects of low identification efficiency, poor accuracy and repeatability, and then provides a method with high identification efficiency, good accuracy and repeatability. Field Identification Method of Sesame Varieties Resistance to Bacterial Wilt

Method used

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  • Field high-flux identification method for bacterial wilt resistance of sesamum indicum varieties
  • Field high-flux identification method for bacterial wilt resistance of sesamum indicum varieties
  • Field high-flux identification method for bacterial wilt resistance of sesamum indicum varieties

Examples

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Embodiment 1

[0037] This example provides a high-throughput field identification method for the resistance of sesame varieties to bacterial wilt. It includes the following steps:

[0038] 1) Sesame bacterial wilt natural identification disease nursery cultivation: select areas where sesame bacterial wilt often occurs, and select fields with flat terrain and uniform fertility, and plant the highly susceptible variety Ganzhi No. 5 to its fields for 3 consecutive years After the rate of diseased plants is not less than 90%, select the field as a natural identification disease nursery in the second year;

[0039]2) Soil preparation and sowing: before sowing, use Jinduer to carry out closed weeding to the natural identification disease garden, apply 25kg of base fertilizer in the natural identification disease garden of every 667 square meters, wherein, the total content of nitrogen, phosphorus and potassium in the base fertilizer is 45wt%, the ratio of nitrogen, phosphorus and potassium is 6:...

Embodiment 2

[0062] This example provides a high-throughput field identification method for the resistance of sesame varieties to bacterial wilt. It includes the following steps:

[0063] 1) Sesame bacterial wilt natural identification disease nursery cultivation: select areas where bacterial wilt often occurs in sesame, and select fields with flat terrain and uniform fertility, and plant the highly susceptible variety Zhongzhi 13 for 4 consecutive years until its field disease After the plant rate is not lower than 90%, select the field as the natural identification disease nursery in the second year;

[0064] 2) Soil preparation and sowing: before sowing, use Jinduer to carry out closed weeding to the natural identification disease garden, apply 30kg of base fertilizer in the natural identification disease garden of every 667 square meters, wherein, the total content of nitrogen, phosphorus and potassium in the base fertilizer is 40wt%, the ratio of nitrogen, phosphorus and potassium is...

Embodiment 3

[0084] This example provides a high-throughput field identification method for the resistance of sesame varieties to bacterial wilt. It includes the following steps:

[0085] 1) Sesame bacterial wilt natural identification disease nursery cultivation: select areas where sesame bacterial wilt often occurs, and select fields with flat terrain and uniform fertility, and plant the highly susceptible variety Ganzhi No. 5 to its fields for 2 consecutive years After the rate of diseased plants is not less than 90%, select the field as a natural identification disease nursery in the second year;

[0086] 2) Soil preparation and sowing: before sowing, use Jinduer to carry out closed weeding to the natural identification disease garden, apply 20kg of base fertilizer in the natural identification disease garden of every 667 square meters, wherein, the total content of nitrogen, phosphorus and potassium in the base fertilizer is 50wt%, nitrogen, phosphorus, and potassium ratio of 7:3:7; ...

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Abstract

The invention discloses a field high-flux identification method for bacterial wilt resistance of sesamum indicum varieties. The identification method comprises the following steps: (1) cultivating a natural identification disease nursery; (2) carrying out land preparation and sowing; (3) carrying out disease nursery management; and (4) carrying out disease resistance evaluation. According to the identification method, through cultivating the natural disease nursery, the uniformity and consistency of field onset are guaranteed, and the accuracy and repeatability of the identification method are improved; and moreover, through guaranteeing the soil humidity of the natural identification disease nursery and determining the plant spacing of final thinning and the density of cultivation, the quantity of sesamum indicum varieties capable of being evaluated in one time is 2.5 times or more that of specification DB36/T 879-2015 in the prior art under the condition of the same expense and natural disease nursery area, the identification efficiency is increased while high accuracy and repeatability are guaranteed, the contradiction between short appropriate identification time and long required identification cycle is solved, and the selective breeding and popularization and application of disease-resistant varieties are accelerated and propelled.

Description

technical field [0001] The invention belongs to the technical field of disease resistance identification, in particular to a field high-throughput identification method for resistance to bacterial wilt of sesame varieties. Background technique [0002] Sesamum (Sesamum indicum Linn.), an annual herb belonging to the family Flaxaceae, is an ancient high-quality oil crop in my country and an indispensable raw material for many traditional foods in my country. It has a long history of planting in China, and its planting area in the country More than 1 million hm 2 . The unsaturated fatty acid content in sesame is more than 85%, and it is rich in antioxidant components such as sesamin and vitamin E, which makes it have high nutritional and health value and broad consumer groups. In the process of sesame planting, there are many kinds of diseases and insect pests that harm it and are not easy to control, especially the sesame bacterial wilt (sesame bacterial wilt) caused by Rals...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G7/00
CPCA01G7/00A01G22/00
Inventor 华菊玲
Owner INST OF PLANT PROTECTION JIANGXI ACAD OF AGRI SCI
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