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Method for early screening of fine varieties of nobile-types

A technology for fine varieties and screening methods, applied in botany equipment and methods, plant gene improvement, application, etc., can solve the problems of long screening cycle, long vegetative period, high production cost, etc., to reduce production cost, shorten the life span, improve efficiency effect

Inactive Publication Date: 2013-12-25
BEIJING FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As Dendrobium dendrobii is a perennial plant with a long vegetative period, it takes three years of cultivation and maintenance to bloom, the screening period is long, and the production cost is high.

Method used

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  • Method for early screening of fine varieties of nobile-types
  • Method for early screening of fine varieties of nobile-types
  • Method for early screening of fine varieties of nobile-types

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Six spring Dendrobium hybrid varieties with gradient differences in flower quality were selected: excellent varieties 'Senhe 2006' and 'Senhe H1', ​​medium varieties 'Senhe 2005' and 'Senhe 2007', poor Varieties 'Senhe 818' and 'Senhe 2002' were measured at the resting leaf stage of the annual cuttings of Dendrobium dendrobium and the blooming stage of the corresponding three-year-old flowering plants, respectively, and the data obtained were all used Excel and SPSS V18.0 software for analysis.

[0020] Growth indicators of cutting seedlings include stem diameter, node length, number of nodes, number of leaves, leaf length, leaf width, plant height, fresh weight, and root length. The measurement methods are:

[0021] Fresh weight (g): the weight of the whole cutting plant without cutting stem nodes.

[0022] Plant height (cm): It is the height from the root neck to the top of the stem, measured with a meter ruler, and the reading is accurate to 1 decimal place.

[002...

Embodiment 2

[0047] When the annual cuttings of Dendrobium dendrobii enter the resting leaf stage, and the second leaf from the top to the bottom is about 5 cm long, 30 spring Dendrobium varieties 'Senhe 4001' (evaluated as a poor variety in production) were randomly selected, and the leaves were measured. Long, plant height (method is the same as embodiment 1). The leaf length is the leaf length of the top leaf, and the plant height is the height from the root neck to the top of the stem.

[0048] Take the mean value (cm) of the two indicators, x1=3.94, x2=5.49, and substitute it into the regression equation y=0.511x1+0.845x2-7.247 to get a comprehensive score of flower quality y=-0.59<-0.58, which belongs to a poor variety , not suitable for cultivation and production, which is consistent with the evaluation on production.

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Abstract

The invention discloses a method for early screening of fine varieties of nobile-types. The method comprises the following steps of a, measuring plant heights and leaf lengths of annual cutting seedlings; b, calculating the quality comprehensive score of a nobile-types flower by substituting the average values of the plant heights and the leaf lengths into a regression equation y=0.511*1 (plant height)+0.845*2 (leaf length)-7.247; and c, predicating the quality of the nobile-types flower according to the quality comprehensive score of the nobile-types flower and variety grading reference criteria. The method provided by the invention improves the variety screening efficiency, shortens the screening cycle, and saves the production cost.

Description

technical field [0001] The invention relates to a plant variety screening method, in particular to a method for early screening of spring dendrobium varieties. Background technique [0002] Spring Dendrobium is loved by consumers all over the world because of its rich flower colors and long flowering period. It is a very popular high-end potted flower in countries such as today, Britain, and the United States. And because its natural flowering period is mostly concentrated in spring from February to April, it has also become an important ornamental potted flower in my country's flower market in recent years. Therefore, breeding and large-scale production of fine varieties of Dendrobium dendrobii have broad market prospects. [0003] Internationally, Japan is the main producer and consumer of spring Dendrobium potted flowers. Its production system of spring Dendrobium is relatively complete, which has contributed to relatively mature cultivation techniques. With the continu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/04
Inventor 刘燕贾梦雪张启翔邹成勇樊翠霞郑勇平范文锋叶香娟张勇杰朱鑫炜王喆
Owner BEIJING FORESTRY UNIVERSITY
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