Radiation breeding method for gardenia

Abstract

The invention relates to a radiation breeding method for gardenia, and belongs to the technical field of plant breeding. The method comprises the following steps of: selecting an excellent gardenia tree, and cutting a branch as a radiation material; performing 60 Co-gamma ray radiation on the radiation material, wherein the radiation dosage is 20 to 25Gy; raising seedlings of the radiated branch by cutting, transplanting the seedlings after the seedlings raised by cutting survive, breeding the seedlings for three years, comparing the seedlings with a common seedling control group bred without radiation, screening the beneficial variable strains, and raising the seedlings by cuttage propagation to obtain optimized strains with stable trait inheritance. After the gardenia tree is grown up and enters a fruiting period, the flowering period and the fruit maturing period are shortened, the flowering time and the fruit maturing time are more centralized, the yield of fresh gardenia fruits is more than 750kg / mu, and the gardenoside content is over 5 percent; the pigment mass is more than 26.68 by using 1 centimeter of 1 percent 61 color scale E and 100 grams of raw medicament through detection; the plant height is 1.6 to 2.0 meters; the form is proper in branching, and the plant is green; the leaf length is 6 to 15 centimeters, the leaf width is 2.6 to 7 centimeters, the leaf edge is rolled inwards, and the leaves are thick and dark green; the full fruit length is 6 to 9 centimeters, the fruit length is 4.0 to 5.5 centimeters, the length of the fruit calyx is 2 to 3.5 centimeters, the fruit diameter is 2 to 2.5 centimeters, and the weight of the dried fruits is 7 kilograms; after maturing, the fruit is red; and the gardenia tree is a plant with strong cold resistance.

Description

technical field [0001] The invention relates to a radiation breeding method of gardenia jasminoides, belonging to the technical field of plant breeding. Background technique [0002] Radiation mutagenesis is a commonly used mutagenesis technique for mutation breeding, mainly including radiation mutagenesis, ion beam mutagenesis and space mutagenesis. Radiation breeding has the advantages of high mutation frequency, stable traits, and short breeding cycle. It can induce new gene sources that have not yet appeared or are difficult to appear in nature, greatly enrich the raw materials in breeding work, and greatly improve some traits. One of the important ways in the cultivation and improvement of medicinal plant varieties. The agronomic traits of medicinal plants after irradiation mainly include changes in seed germination rate, emergence rate, plant height, number of branches, root length, and number of flowering and seeding. It has a double effect on the growth and develop...

AI Technical Summary

Problems solved by technology

It is a good way to cultivate new varieties of Gardenia jasminoides by means of radiation breeding.

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