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A kind of breeding method of high-starch, high-yield sweet potato

A breeding method and high-yield technology, applied in the direction of botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of low starch content, quality degradation, low yield, etc.

Active Publication Date: 2018-06-22
云南唐伯薯生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-starch, high-yield sweet potato cultivation method to solve the problems of low yield, low starch content and quality degradation of existing sweet potato varieties

Method used

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Experimental program
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Effect test

Embodiment

[0024] A method for cultivating high-starch, high-yield sweet potatoes, the cultivating process is carried out in a greenhouse, specifically comprising the following steps:

[0025] S1. Parent selection: Longshu 9, Shangshu 19, Jinshu 2 and Ziyun Hongxinshu were selected as parents;

[0026] S2. Inducing flowering: Longshu No. 9, Jinshu No. 2 and Ziyun red heart potato were respectively planted by cutting method. In August, the growth environment of Longshu No. 9, Jinshu No. 2 and Ziyun Red Heart Potato was adjusted to a light time of 6-8h / d, a light intensity of 18000-50000Lx, and a temperature of 24-28°C; The growth environment of No. 19 was adjusted to the light time of 9-10h / d, the light intensity of 10000-30000Lx, and the temperature of 20-25°C; at the same time, Longshu No. 9, Shangshu No. 19, Jinshu No. 2 and Ziyun No. The sweet potato is sprayed with foliage fertilizer; the weight ratio of the composition of the foliage fertilizer is boric acid: dipotassium hydrogen p...

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Abstract

The invention belongs to the field of agricultural cultivation and particularly relates to a cultivating method for high-starch high-yield sweet potatoes. The cultivating method comprises the following steps of S1, parental selection, S2, induced flowering, S3, hybridization, S4, selfing, S5, secondary hybridization, S6, the third time of hybridization, S7, the fourth time of hybridization and S8, seeding. The novel variety of sweet potatoes cultivated through the cultivating method improves the starch content by 34.75%, the yield is improved by 40.14%, economic benefit of growers is increased, and the utilization rate of sweet potato industry processing is increased.

Description

technical field [0001] The invention belongs to the field of agricultural planting, and in particular relates to a method for cultivating high-starch and high-yield sweet potatoes. Background technique [0002] Sweet potato (Ipomoea batatas (L) Lam.) belongs to Tubular Flowers, Convolvulaceae annual herbaceous plant, more than 2 meters long, lying on the ground obliquely, the leaves are usually wide ovate, 4-13 cm long, 3-13 cm wide cm, corolla pink, white, lavender or purple, bell-shaped or funnel-shaped, 3-4 cm long, capsule ovate or oblate, with pseudo-septum, divided into 4 rooms, with underground tubers, tubers spindle-shaped, The outer skin is khaki or purple. Sweet potatoes are rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and are known as "longevity food". The sugar content reaches 15%-20%. It has anti-cancer, heart protection, prevention of emphysema, diabetes, weight loss and other effects. Li Shizhen's "Compendium of M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 唐升忠
Owner 云南唐伯薯生物科技有限公司