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Method for obtaining heat-resisting morning glory plant

A morning glory and plant technology, which is applied in the field of obtaining heat-resistant mutant plants of morning glory, can solve the problems of poor heat and humidity resistance, easy disease and wither, achieve strong heat resistance, widen time and geographical scope, and shorten breeding time. Effect

Inactive Publication Date: 2015-11-18
ZHENJIANG SUIHAN AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Extensive management of morning glory is a good material for landscaping, artificial landscape, and home courtyard beautification. The ornamental effect is very good, and the demand is increasing year by year. Now it is widely introduced and planted all over the world, and many horticultural varieties have been selected and bred, with various flower types. , with rich and colorful flowers and colors. At present, there are many varieties of morning glory for cultivation and ornamental use. However, although some morning glory varieties such as large-flowered morning glory and split-petalled morning glory have strong ornamental patterns and colors, they are poor in moisture and heat resistance. In summer, it is easy to get sick and die in high temperature and high humidity. Breeding more new varieties with ornamental value, heat and humidity resistance, disease resistance and drought resistance is the main breeding goal of morning glory, and it is also the premise and basis for the wide application of morning glory.

Method used

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  • Method for obtaining heat-resisting morning glory plant

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The method for obtaining morning glory mutant plants, the steps are as follows:

[0017] (1) Morning glory seedlings are sown and raised in early June. Nutrient pots or flowerpots can be used to raise seedlings. Select 8-10 leaves, grow vigorously and vigorously, and 600 seedlings without diseases and insect pests, and remove the top parts of the seedlings.

[0018] (2) Group setting: 6 groups were set up, wherein 5 groups were experimental groups, and the other group was a control group, with 100 plants in each group;

[0019] Experimental group: spraying diethyl sulfate (DES, mutagen) solution (pH value=7), each group concentration is respectively, A group: 0.05%; B group: 0.1%; C group: 0.15%; D group : 0.2%; Group E: 0.25%;

[0020] Control group: Spray 8-10ml of water;

[0021] It is advisable that the spraying amount of the experimental group and the control group is all moist on the whole plant leaf surface of each plant (the spraying amount of each seedling is...

Embodiment 2

[0033] Embodiment 2 verification test

[0034] The plant seeds (L) harvested by mutagenesis in the experimental group and the seeds harvested in the control group were sown together to raise seedlings. When the two types of plants were 45-50 days old, 20 vigorous and robust plants were selected and placed in the transplanted 38°C-40°C, 3-4 days in a light incubator with a relative humidity of 80%-90% (before being placed in the incubator, water each plant thoroughly, and do not water during high temperature stress). The plants in the control group had heat damage, and the leaves were extremely curled and shrunk. Some plants were partially wilted and yellow, and did not resume growth or even died after watering; normal growth.

[0035] Take the normal and disease-free leaves of the upper parts of the two types of plants (get the leaves of the same or similar parts), and measure the contents of three indicators such as malondialdehyde, peroxidase (POD) and free proline respecti...

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Abstract

The invention provides a method for obtaining a heat-resisting morning glory plant. The method comprises the following steps: (1) sowing and raising morning glory seedlings, and selecting the sturdy seedlings without plant diseases or insect pests; (2) spraying a mutagenic agent water solution; (3) carrying out illumination culturing on the seedlings for 3-4 days at 20 DEG C to 25 DEG C, then carrying out culturing for 5-7 days at 38 DEG C to 40 DEG C and the relative humidity being 80%-90%, and then carrying out illumination culturing for 3-4 days at 20 DEG C-25 DEG C; (4) selecting the plants with leaves having color change and ratio of wilting to malformation being smaller than 25%, detecting the content of physical signs in the leaves, and selecting the single seedlings; and (5) culturing the seedlings, determining the content of the physical signs in the leaves on the middle of July, selecting the highest-grade single plants with excellent field fancy points, bagging during the flowering phase, so that selfing and fruit setting are further realized, and after the capsules become yellowish-brown, harvesting the seeds. According to the method, the chemical reagent mutagenesis is combined with high temperature stress treatment, so that the mutant plants with strong heat resistance and excellent fancy point are obtained, and the heat resistance is stably inherited to the offsprings.

Description

technical field [0001] The invention relates to a method for obtaining heat-resistant mutant plants of morning glory, belonging to the technical field of plant cultivation. technical background [0002] Morning glory (Pharbitisnil (Linn.) Choisy) is an annual trailing twining herb of the family Convolvulaceae Petunia. 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. Corolla trumpet-like. The flowers are bright and beautiful. Common cultivars include the following three types: split-leaf morning glory, with deep three-lobed leaves, medium-sized 1 to 3 axillary flowers, which are bright blue, rose red or white; round-leaf morning glory, broad heart-shaped leaves, entire, The flower type is small, with white, rose red, bright blue and other colors; the big flower morning glory, the leaf is large and the stalk is long, with three lobes, the central l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/06
Inventor 姚悦梅潘跃平毛忠良戴忠良王建华吴国平张振超潘永飞秦文斌肖燕孙春青马志虎孙国胜
Owner ZHENJIANG SUIHAN AGRI