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Waterlogging-resistant hemerocallis variety screening method

A screening method and technology of waterlogging tolerance, applied in the field of screening of daylilies with waterlogging tolerance, can solve the problems such as rare reports of waterlogging tolerance of daylilies, achieve the effect of enhancing ornamental quality and greening environment, and reducing plant death

Inactive Publication Date: 2018-02-16
SHANGHAI INST OF TECH
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Problems solved by technology

[0004] The identification of waterlogging tolerance of Hemerocallis is the basis for breeding fine varieties of Hemerocallis. Many scholars have studied the resistance of Hemerocallis, but there are few reports on the waterlogging tolerance of Hemerocallis

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, so as to help understand the content of the present invention.

[0033] Such as Figure 1~2 Shown, a kind of waterlogging tolerance Hemerocallis variety screening method provided by the invention, screening method comprises the following steps:

[0034] (1) 14 groups of Hemerocallis plants of different varieties were first continuously treated with waterlogging for 6 days, and then normally cultivated for 35 to 40 days;

[0035] (2) Observe and take photos to record the phenotypic changes of the plants, including leaf color, leaf shape, color changes of stems at flooded places, and morphological changes of plants after 35 to 40 days of recovery;

[0036] (3) Screen the phenotypic changes of different varieties of Hemerocallis during the flooding process and the morphological changes of the plants after 35 to 40 days of recovery according to the grad...

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Abstract

The invention discloses a waterlogging-resistant hemerocallis variety screening method. Waterlogging treatment is carried out on hemerocallis of different varieties, water is 5 cm higher than the soilsurface, submergence treatment continues for 6 days, and morphological characteristics, such as leaf color, leaf morphology, color changes of submerged stems and morphological changes 35-40 days after plant recovery, of the overground portions of plants are observed and recorded; by means of photographing recording, the grading ranges of the four indexes including the leaf color, leaf morphology,the color changes of the submerged stems and the morphological changes 35-40 days after plant recovery are determined first; after total points are obtained according to grading scoring standards, good-quality varieties high in waterlogging resistance are screened out. It is proved that the system can obtain reliable results, the true situation of the hemerocallis can be objectively reflected, and a foundation is laid for hemerocallis waterlogging-resistant breeding and large-scale hemerocallis variety screening.

Description

technical field [0001] The invention belongs to the field of plant cultivation and plant management, in particular to a method for screening daylilies with waterlogging tolerance. Background technique [0002] Hemerocallis belongs to the perennial root herb of Liliaceae (Liliaceae). It is native to Asian and European countries. There are about 14 species of Hemerocallis in the world, and 11 species are native to my country. Its germplasm resources are abundant and its functions are extensive. "View as a flower, eat as a vegetable, and use as a medicine", the market demand for it continues to increase (Chen Lifei, Dong Ran. "Research Progress in Hemerocallis". Changchun: Department of Landscape Architecture, College of Horticulture, Jilin Agricultural University, 2007, 1), in Ornamental plants have the advantages of long viewing period, high ornamental value and strong adaptability. They are excellent garden ornamental flowers and are widely used in urban landscaping. Hemeroca...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00G06F19/24
CPCG16B40/00
Inventor 张志国王婧尹冬梅栾东涛周纯亮
Owner SHANGHAI INST OF TECH
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