Method for simply identifying drought-enduring type varieties in sugarcane breeding process

A drought-tolerant type and variety technology, applied in sugarcane cultivation, botanical equipment and methods, applications, etc., can solve the problems of heavy identification workload and difficult operation, and achieve accurate identification results, intuitive and fast identification, simple, convenient and efficient identification Effect

Inactive Publication Date: 2020-07-03
广州甘蔗糖业研究所湛江甘蔗研究中心
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  • Claims
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Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a method for simply identifying drought-tolerant varieties in the process of sugarcane breeding, aiming to solve the problems in the prior art due to the heavy workload of relying on instrument detection and index analysis and identification, and difficult operation.

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  • Method for simply identifying drought-enduring type varieties in sugarcane breeding process

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Experimental program
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Embodiment 2

[0022] A kind of sugarcane breeding process simple and easy identification method for the drought-tolerant type variety of this embodiment comprises the following identification steps:

[0023] S1. First, select the same dry slope plot in the natural arid area, and compare the drought tolerance of multiple strains of materials in the identification nursery of the "five nursery system" breeding. The drought-tolerant varieties in production are used as controls, and the shallow planting is thinly covered with soil. , and record the production form of sugarcane seedling plants of each variety under drought conditions, including emergence rate, emergence speed, dead bud rate, tillering rate;

[0024] S2. After the sugarcane enters the joint elongation period, focus on investigation and records of drought performance of different varieties at the initial elongation stage, including tiller mortality, leaf yellowing rate, joint growth speed (growth speed), leaf curling or wilting degr...

Embodiment 3

[0029] A kind of sugarcane breeding process simple and easy identification method for the drought-tolerant type variety of this embodiment comprises the following identification steps:

[0030]S1. First, select the same dry slope plot in the natural arid area, and compare the drought tolerance of multiple strains of materials in the identification nursery of the "five nursery system" breeding. The drought-tolerant varieties in production are used as controls, and the shallow planting is thinly covered with soil. , and record the production form of sugarcane seedling plants of each variety under drought conditions, including emergence rate, emergence speed, dead bud rate, tillering rate;

[0031] S2. After the sugarcane enters the joint elongation period, focus on investigation and records of drought performance of different varieties at the initial elongation stage, including tiller mortality, leaf yellowing rate, joint growth speed (growth speed), leaf curling or wilting degre...

Embodiment 4

[0036] Carry out sugarcane drought-tolerant type identification according to the method of above-mentioned embodiment 1-3 simple and easy identification drought-tolerant type variety respectively, continue to carry out large-area productive test planting on the dry sloping land of natural arid area from the drought-resistant type type screened out in three years , to further verify its field production performance, and get the following data:

[0037]

[0038] It can be seen from the above table that the method for simply identifying drought-tolerant varieties of the present invention can be more convenient and effective. After the identified varieties are planted in arid regions, the sugar content per hectare is significantly increased, and the yield is also increased by about 20% compared with the control varieties.

[0039] In the present invention, comparative planting of the drought resistance of breeding materials is carried out on the same dry slope in the natural ari...

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Abstract

The invention discloses a method for simply identifying drought-enduring type varieties in a sugarcane breeding process, and particularly relates to the field of identification of sugarcane varieties.The method comprises the following identification steps: S1, firstly, selecting land parcels at the same dry slope in a natural arid region, performing drought resistance contrast planting on a plurality of different strain materials in an identification nursery performing breeding in a 'five-nursery system', with produced drought-enduring varieties as contrast, performing shallow planting and thin soil covering, and respectively recording the production shape of seeding-stage sugarcane plants of each variety under the drought condition, including rate of emergence, seedling emergence speed,dead bud rate and tillering rate; and S2, after sugarcanes enter a jointing and elongation period, major investigating and recording the drought-enduring expression of different varieties at the elongation initial stage, further performing overall evaluation and identification on field agronomy indexes, and performing comparison with check varieties so as to identify relative drought-enduring typevarieties. According to the method disclosed by the invention, through combination with field experiment data, agronomic character indexes and economic character indexes of other experiment nurseries, high-yield high-quality drought-enduring varieties can be screened out.

Description

technical field [0001] The embodiments of the present invention relate to the field of sugarcane drought-resistant breeding, and in particular to a method for simply identifying drought-tolerant varieties during the sugarcane breeding process. Background technique [0002] With the development of our country's economy, due to the impact of economic crops such as grain, fruit, vegetables, flowers, and Chinese medicinal materials in traditional sugarcane areas, sugarcane is forced to be planted on dry slopes and remote hillsides that lack water and no irrigation conditions. The main sugarcane production in my country The production of raw sugarcane in the region is affected by drought to varying degrees every year. With the development of the industry, the lack of drought-resistant varieties has been unable to meet the current production needs of sugarcane areas, seriously restricting the healthy development of the sugarcane industry. At present, solving the seasonal drought p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/55A01H1/04
CPCA01H1/04A01G22/55
Inventor 潘方胤罗青文文明富彭立冲梁启如陈顺
Owner 广州甘蔗糖业研究所湛江甘蔗研究中心
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