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Method for breeding basic seeds of potato by field transplanting of tissue culture seedlings on low-latitude plateau

A technology for tissue culture seedlings and potatoes, applied in botany equipment and methods, culture medium, planting substrate, etc., can solve the problems of long cycle, many breeding steps of virus-free seed potatoes, high cost, etc., and achieve easy management and shorten the breeding time , to ensure the effect of water retention

Inactive Publication Date: 2020-01-17
云南省农业科学院经济作物研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies in the existing virus-free seed potato breeding links, long cycle, high cost, etc., to provide a method of directly planting the original seed in the field with tissue cultured seedlings under the condition of low latitude plateau. The method can not only shorten the original three-year breeding time to two years, but can greatly reduce labor intensity and production costs, and improve the efficiency of virus-free seed potatoes. There is a greater application promotion value under

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  • Method for breeding basic seeds of potato by field transplanting of tissue culture seedlings on low-latitude plateau

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experiment example

[0060] The potassium sulfate compound fertilizer that the present invention adopts is purchased from Arab Industries Company

[0061] 52.5% suppress fast water-purifying dispersible granules, purchased from DuPont (China) Co., Ltd.;

[0062] 75% of mancozeb was produced by Montsen Company and purchased from Anglu Agricultural Material Company;

[0063] The real-time data of the potato late blight monitoring and early warning system of the present invention can be the Chinese potato late blight monitoring and early warning system; what this embodiment adopts is the real-time data of Yunnan potato late blight monitoring and early warning system (http: / / 218.70.37.104:7000 / yunnan / ) ;

Embodiment 1

[0065] In 2015, a low-latitude plateau tissue culture seedling field transplanting and breeding original seed method was adopted. The test plot address: Yezhu Village, Jiache Township, Huize County, 2,700 meters above sea level, 107 mu of Yunshu, with an area of ​​3.12 mu.

[0066] Adopting a method for transplanting and breeding original species of tissue cultured seedlings in low-latitude plateaus, comprising the steps of:

[0067] Step (1), build seedling ponds: according to the original facilities of the unit, two seedling ponds of 1.4 meters, 0.15 meters deep and 28 meters long were built in the greenhouse;

[0068] Step (2), seedling substrate preparation: mix fine peat, coarse peat, and perlite at a ratio of 1:1:2, and add 1kg of compound fertilizer per cubic meter of substrate (N:P:K is 15:15:15) Mix well; use a sprayer to spray the mixed substrate with moisture, put it into a plastic foam seedling tray with 162 holes of 0.7 meters in length, 0.4 meters in width, and 0...

Embodiment 2

[0078]In 2018, a low-latitude plateau tissue culture seedling field transplanting and breeding original seed method was adopted. The address of the test plot: Tou Village, Jiache Township, Huize County, 2640 meters above sea level, the breeding variety Yunshu 108, with an area of ​​2.36 mu. The time for seedling emergence in the tissue culture room is from May 31 to June 2, the time for transplanting in the field is June 29, and the time for harvesting is November 2. The harvest results are as follows: 2.64 tons were harvested, equivalent to 1.12 tons per mu. In 2018, due to the drought, the investigation of the local conventional breeding original species was 0.93 tons.

[0079] Comparison of two breeding modes

[0080]

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Abstract

The invention discloses a method for breeding basic seeds of potato by field transplanting of tissue culture seedlings on low-latitude plateau; the method comprises the steps of building a seedling raising pond, scientifically preparing a seedling culture medium, planting tissue culture seedlings, managing pesticides and fertilizers for raising the tissue culture seedlings, transplanting the tissue culture seedlings to a field, managing the field, preventing and controlling late blight, harvesting basic seeds and the like; According to the method, the seedling culture medium is scientificallyand reasonably prepared, and the growth conditions for seedling raising are scientifically and reasonably controlled, in combination with the growth characteristics of tissue culture seedlings of potato; transplanting planting with the medium is adopted, technical conditions such as planting time, seedling transplanting time, planting modes and the like are strictly controlled, and therefore, thesurvival rate of the seedlings is effectively increased, the growth vigor is improved, the defect and problem is solved that pre-basic seeds with tissue culture seedlings are bred before basic seeds are bred with the pre-basic seeds or that seed potatoes are bred in the field directly through tissue culture seedlings, the breeding efficiency of potato seeds is effectively improved, and the labor intensity, facility construction investment and production cost are reduced; and the method is a practical breeding technology of seed potatoes with simple operation procedure, labor saving and labor saving, and is suitable for popularization and application in high-altitude southwest mountainous areas.

Description

technical field [0001] The invention belongs to the technical field of potato seed potato breeding, and in particular relates to a method for transplanting and breeding original potato seedlings in low-latitude plateau fields; Background technique [0002] The potato industry has become a pillar industry in the mountain planting industry in Yunnan Province, and it is one of the main ways for farmers in mountainous areas to increase their income and increase agricultural efficiency; due to the arid and barren soil in mountainous areas, extensive farming management, single and backward cultivation techniques, and potatoes are asexually propagated crops, During the planting process, virus infection causes seed degeneration, which seriously affects the increase in potato yield. The application of virus-free seed potatoes contributes 30 to 50% to potato planting. Breeding high-quality virus-free seed potatoes is the key to potato production. An important link in the production of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/25A01G24/15A01G24/28
CPCA01G22/25A01G24/15A01G24/28
Inventor 包丽仙李先平刘凌云卢丽丽杨琼芬蒋伟尹自友
Owner 云南省农业科学院经济作物研究所
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