Method for systematically selecting and breeding asexual stevia parent for producing hybrid
A technology of systematic breeding and parental origin is applied in the field of systematic breeding of stevia clones and parental origins to cultivate new hybrid varieties, which can solve the problems of labor-intensive, low leaf yield, easy degeneration of varieties, etc., and achieves high economic benefit and high leaf yield. , the program is simple effect
Inactive Publication Date: 2012-05-30
王其斌
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Problems solved by technology
[0003] There are two kinds of propagation methods of existing Stevia: the one is the asexual propagation method, the advantage of this method is that the purity and good quality of the species can be kept; Time-consuming, labor-intensive, capital-intensive, high production cost, low leaf output
The second is the sexual reproduction method. The disadvantage of this method of reproduction is that the species are easy to degenerate.
[0004] The present invention adopts the method of systematically breeding stevia clone parents to cultivate new hybrid varieties. After Chinese patent retrieval and extensive reference to domestic and foreign publications, there is no report of the same method.
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[0024] The following describes the specific implementation of the present invention through the description of the process of the present invention.
[0025] 1. Single potted plants, selected and bred high-quality single plants.
[0026] Stevia is a self-sterile cross-pollination crop, so the genetic composition of the Stevia population is always heterozygous, the heritability of sexual offspring is not easy to stabilize, and beneficial and harmful variations are retained at the same time, which allows us to choose favorable variations Excellent individual plants bring opportunities and possibilities. Over the past few years, we have insisted on selecting individual Stevia plants for individual plant potting in different planting areas and at different growth stages according to different growth traits, which is conducive to observing the characteristics, characteristics, resistance and adaptability of individual plants; It is conducive to selecting the best and eliminating t...
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The present invention discloses systemic asexual stevia parent selection breeding process for producing hybrid, and features that the process includes systemic selection of superior plants, mating excellent combination, breeding asexual female and male parent, crossing breeding and collecting seed. The present invention has asexual propagation of the female and male parent to fix the excellent characters and colony cross breeding. Compared with traditional breeding process, the present invention has simple process and fast effect, the bred stevia breed has high resistance, high leaf yield, and high content of total glycoside and A3 glycoside in the leaf.
Description
technical field [0001] The invention relates to a method for cultivating a new stevia hybrid variety, in particular to a method for systematically selecting and breeding stevia clone parents to breed a new hybrid variety. Background technique [0002] At present, there are more than 20 kinds of sweeteners used in the world, which can be divided into two categories: natural and synthetic according to their sources. Natural products include sucrose, fructose, honey, glucose, etc., all of which contain extremely high calories, which can easily lead to elevated blood sugar and dental caries. Diabetics, cardiovascular patients, and obese patients should not eat them. Chemical synthesis products include aspartame and saccharin, which are harmful to the human body. As a natural sweetener, stevioside has a sweetness 200-400 times that of sucrose, and its calories are only 1 / 300 of sucrose. It has a pure taste and is safe to eat. It is used in food, beverage, medicine, cosmetics and...
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IPC IPC(8): A01H1/02A01H1/04
Inventor 王其斌
Owner 王其斌