Cold-resistant strong sweet potato breeding method

A technology for cold tolerance and sweet potato, applied in horticultural methods, botanical equipment and methods, seed and rhizome treatment, etc., can solve the problems of few breeding routes and low breeding efficiency, and achieve enhanced cold tolerance, shortened breeding cycle, and increased yield Effect

Inactive Publication Date: 2015-06-10
QINGDAO ZHONGTIAN XINDA BIOTECH R & D
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of few breeding approaches and low breeding efficiency in the conventional sweet potato breeding work, the object of the present invention is to provide a method for breeding sweet potatoes with strong cold resistance, improve the yield of products, and obtain new sweet potato varieties with high quality and strong stress resistance , the present invention has the obvious advantages of low processing cost, simple and easy operation, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of cold resistance strong sweet potato breeding method is characterized in that, described method comprises the steps:

[0019] (1) Select the sweet potato with good red skin as the female parent, immerse the prepared material in the treatment solution with a concentration of 6mmol / L potassium permanganate and sodium azide according to the molar ratio of 2:1, seal it and place it in the dark Control the temperature at 25°C and soak for 24 hours;

[0020] (2) Rinse the soaked sweet potato material with running water for 5 minutes, irradiate it with 60Co-γ rays at a radiation dose of 20Gy, and then expose it to sunlight for 2.5 hours in an environment with an air humidity above 60%;

[0021] (3) Apply compound base fertilizer of urea, ammonium hydrogen phosphate and potassium chloride to the seedbed according to the composition of 5:2:2, the width of the border is 0.5m, the depth of the ditch is 8cm, the cutting temperature is controlled at 25°C, and the spacing be...

Embodiment 2

[0024] A kind of cold resistance strong sweet potato breeding method is characterized in that, described method comprises the steps:

[0025] (1) Select the sweet potato with good red skin as the female parent, immerse the prepared material in the treatment solution with a concentration of 7mmol / L potassium permanganate and sodium azide according to the molar ratio of 2:1, seal and place in the dark Control the temperature at 25°C and soak for 22 hours;

[0026] (2) Rinse the soaked sweet potato material with running water for 6 minutes, irradiate with 60Co-γ rays at a radiation dose of 20Gy, and then expose it to sunlight for 3 hours in an environment with an air humidity above 60%;

[0027] (3) Apply compound base fertilizer of urea, ammonium hydrogen phosphate and potassium chloride to the seedbed according to the composition of 5:2:2, the width of the border is 0.5m, the depth of the ditch is 8cm, the cutting temperature is controlled at 25°C, and the spacing between plant...

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Abstract

The invention discloses a cold-resistant strong sweet potato breeding method. The cold-resistant strong sweet potato breeding method is characterized by comprising the following steps: (1) soaking a sweet potato with treating liquid; (2) radiating the sweet potato by using 60Co-gamma rays; (3) applying a compound base fertilizer to a seedbed, and cutting; (4) transplanting, supplementing water and fertilizing in time, and selecting the superior and eliminating the inferior. Through treatment of the treating liquid, ray radiation and other technologies, an optimal strain with stable genetic traits is obtained; the fruit maturation time is shortened, the yield is significantly improved, the cold resistance of the sweet potato is enhanced, the treatment cost is very low, and the breeding cycle can be effectively shortened; through a cutting asexual reproduction way, stable and uniform variant plants are obtained.

Description

technical field [0001] The invention belongs to the technical field of plant breeding, and in particular relates to a method for breeding sweet potatoes with strong cold resistance. Background technique [0002] Sweet potato, also known as sweet potato, sweet potato, sweet potato, etc., is rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and has the reputation of "longevity food". It has anti-cancer, heart protection, emphysema prevention, diabetes, weight loss and other effects, and the sugar content reaches 15%-20%. [0003] The root tubers are fleshy, hypertrophic, conical or spindle-shaped, up to 10 cm in diameter, with light yellow skin, rich in fibrous, easy to peel off, white flesh, sweet and juicy. The stem is twisted, 3-8 meters long. Compound leaves, alternate; leaflets 3, top leaflet diamond-shaped, 3.5-16 cm long, 5.5-18 cm wide, leaflets on both sides, ovate or diamond-shaped, 3.5-14 cm long, 3-13.5 cm wide, with teeth on...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C1/00A01G7/06
CPCA01C1/00A01G22/00
Inventor 姜鸿杰程涛木
Owner QINGDAO ZHONGTIAN XINDA BIOTECH R & D
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