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A method for promoting rooting of potato hydroponic seedlings

A potato and hydroponic technology, applied in the field of potato hydroponic seedlings to promote rooting, can solve the problems of unfavorable concentrated nutrient management, long rooting time, weak root system, etc., and achieve the effects of shortening rooting time, saving time for slowing down seedlings, and improving survival rate

Inactive Publication Date: 2018-04-27
云南省农业科学院经济作物研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the production of original potato seeds, the common method is to directly plant the virus-free seedlings into the sandy soil substrate without centralized seedling cultivation. This process requires 3-5 days of seedling hardening time, and because direct planting is not conducive to centralized nutrient management, it is easy to cause stiffness. Seedlings affect normal growth
The rooting time of existing potato hydroponic seedlings is long and the root system is weak, which is not conducive to the growth of hydroponic seedlings in the later stage

Method used

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  • A method for promoting rooting of potato hydroponic seedlings
  • A method for promoting rooting of potato hydroponic seedlings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Effects of clean water, MS, 1 / 2 MS and addition of different concentrations of NAA on the rooting of virus-free potato seedlings in hydroculture for 12 days. See Table 1 for details.

[0020] Table 1

[0021] Processing number

[0022] Analysis: From the perspective of the basic medium, 1 / 2MS medium is more beneficial to the rooting of potato hydroponic seedlings than MS medium, and the same trend is shown between each treatment; for 1 / 2MS medium, the addition of NAA has a significant effect on potato hydroponic seedlings. The rooting rate of hydroponic seedlings has no significant effect, but the effect on root length is significant, and it is significantly lower than treatment 0 and treatment 7; although the initial rooting time of hydroponic seedlings in treatment 0 is shorter, the rooting rate of seedlings also reaches 100%, but the growth of roots and seedlings after rooting are all weaker than treatment 7 in nutrient supply, and the average r...

Embodiment 2

[0023] Example 2: Effects of water, MS, 1 / 2MS and adding different concentrations of IBA on the rooting of potato virus-free test-tube plantlets in hydroculture for 12 days, see Table 2 for details.

[0024] Table 2

[0025] Processing number

[0026] Analysis: From the perspective of the basal medium, 1 / 2MS medium is more beneficial to the rooting of potato hydroponic seedlings than MS medium, and the same trend is shown between each treatment; for 1 / 2MS medium, the concentration of IBA changes , has no significant effect on the rooting rate of potato hydroponic seedlings, but for root length, with the increase of IBA concentration, the average root length of potato hydroponic seedlings gradually decreases, indicating that high concentrations are not conducive to the root system of potato hydroponic seedlings grow. Although the rooting rate of hydroponic seedlings has reached 100% in treatment 0 and treatment 1, the root growth and seedling growth after rooting are...

Embodiment 3

[0027] Example 3: Effects of water, MS, 1 / 2MS and addition of different concentration ratios of 2.4-D and NAA on the rooting of potato virus-free test-tube plantlets in hydroculture for 12 days, see Table 3 for details.

[0028] table 3

[0029]

[0030]

[0031] Analysis: From the perspective of basal medium, 1 / 2MS medium is more beneficial to the rooting of potato hydroponic seedlings than MS medium, and the same trend is shown between each treatment; for 1 / 2MS medium, with 2.4- With the increase of D and NAA concentrations, the average root length of potato hydroponic seedlings gradually decreased, and was significantly lower than treatment 0 and treatment 7; although the survival rate of hydroponic seedlings reached 100% in treatment 0, the rooting Both root growth and seedling growth were weaker than treatment 7 in terms of nutrient supply, and the root length of treatment 7 was significantly higher than other treatments, so treatment 7 was the best nutrient solutio...

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Abstract

The invention discloses a potato water culture seedling root growth promoting method. The method comprises the following steps of taking out a detoxicated test-tube seedling, completely cutting off the parts with the length of about 5mm at the lower section of the root system and stem section of the detoxicated test-tube seedling, and preserving the stem section and the leaves on the upper part; selecting a foaming plate with the thickness of 5mm, cutting the foaming plate according to the specification of a container for accommodating a nutrient solution, and drilling the foaming plates according to the distance of 4cm*4cm for later use; using a 1 / 2MS culture medium which is obtained by diluting an MS culture medium to the concentration of one half; inserting the processed test-tube seedlings into the holes of the foaming plates, i.e. placing the lower ends of the stem sections with the length of about 1cm into a prepared root-growing nutrient solution, wherein a water culture root-growing environment has the conditions of temperature of 20 to 22 DEG C, water temperature of 10 to 20 DEG C and air humidity of 20 to 40 percent, and is irradiated by scattered light at daytime, sun direct irradiation is avoided, and the primary production season of potato substantially satisfies the environment conditions. By the method, the seedling slowing time is saved, and the survival rate is improved.

Description

technical field [0001] The invention belongs to the technical field of potato original seed breeding, and relates to a method for promoting rooting, in particular to a method for promoting rooting of potato hydroponic seedlings. Background technique [0002] At present, in the production of original potato seeds, the common method is to directly plant the virus-free seedlings into the sandy soil substrate without intensive seedling cultivation. This process requires 3-5 days of seedling hardening time, and because direct planting is not conducive to centralized nutrient management, it is easy to cause stiffness. Seedlings affect normal growth. The rooting time of the existing potato hydroponic seedlings is long and the root system is weak, which is unfavorable for the growth of the hydroponic seedlings in the later stage. Contents of the invention [0003] In order to overcome the defects in the prior art, the present invention proposes a method for promoting rooting of p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00
CPCA01G31/00
Inventor 卢丽丽隋启君杨琼芬刘凌云包丽仙尹自友李先平白建明潘哲超
Owner 云南省农业科学院经济作物研究所