A kind of breeding method of early flower split petal morning glory

A morning glory and split-petal technology is applied to the field of selection and breeding of early-flowering split-petal morning glory, can solve problems such as inhibiting popularization and application, and achieves the effects of prosperous growth potential, excellent ornamental characters, and expansion of areas for popularization and application.

Active Publication Date: 2018-04-27
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This greatly inhibits the popularization and application of this split petal type morning glory

Method used

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  • A kind of breeding method of early flower split petal morning glory
  • A kind of breeding method of early flower split petal morning glory
  • A kind of breeding method of early flower split petal morning glory

Examples

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Embodiment 1

[0023] Parent material A: morning glory (K11-40); round leaves, white flower color, flower shape, trumpet shape;

[0024] Parent material B: morning glory (K11-01L), round leaves, white flower color, flower shape, split petals.

[0025] A kind of breeding method of early flower split petal morning glory, such as figure 1 shown, including the following steps:

[0026] 1. On June 25, 2007, the early-flowering round-leaf morning glory variety (parent material A) was sown; on July 10, the split-petal morning glory (parent material B) was sown. Seedlings were grown in plug trays of the parental material. When the parental material A grew to 6-8 true leaves, it was directly planted in the experimental field, managed in the normal field, and bloomed on August 12 (flowering: for a group, the flowering period also refers to the initial flowering period, that is, 25% of the plants of this population started to flower).

[0027] When the parental material B has 4-6 true leaves, shadin...

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Abstract

The invention discloses a breeding method of early blossoming split-petal ipomoea nil. The breeding method comprises the following steps that early blossoming round-leaf l ipomoea nil is used as a parent material A, split-petal ipomoea nil is used as a parent material B, and ipomoea nil hybrid seeds AF1 and BF1 are obtained in two modes of A * B and B * A reciprocal hybridizations respectively; seeds AF2 and BF2 are obtained by adopting two ways of AF1 * B and BF1 * A reciprocal hybridizations; single plants selected from the AF2 are used as female parents and single plants selected from the BF2 are used as male parents to perform cross pollination, and hybrid seeds AF3 are obtained; the seeds AF3 are bagged for selfing, and F4 seeds are obtained; continuous selfing is conducted on the F4 seeds for 3-4 generations, and the stable early blossoming split-petal ipomoea nil is obtained. By the adoption of the breeding method, the stable early blossoming split-petal ipomoea nil can be obtained, grows vigorously, has excellent ornamental characteristics, a flowering period is early, an ornamental period is long, and flowering is 55-65 days earlier than flowering of existing split-petal ipomoea nil varieties in the market at present.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a breeding method for early-flowering split-petal morning glory. Background technique [0002] Morning glory (Pharbitis nil (Linn.) Choisy) is an annual trailing twining herb of the genus Petunia in the Convolvulaceae family. The trailing stem is slender, about 3 to 4 meters, and the whole plant is densely covered with short bristles. Leaves alternate, entire or lobed. Cymes axillary, 1 to several. The corolla is trumpet-like, and the flowers are bright and beautiful. Morning glory is native to the tropical region of Asia, and is now widely introduced and planted all over the world, and many horticultural varieties have been selected and bred, with various flower shapes and colorful colors, and are widely popular in various places. Because the characteristics of morning glory are easy to cultivate, wide adaptability and strong stress resistance have attra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 姚悦梅潘跃平戴忠良曹雪
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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