Piptanthus nepalensis seed preservation and seedling raising methods

A technology of yellow flower trees and seeds, which is applied in the fields of seed and rhizome treatment, botany equipment and methods, horticulture, etc., can solve the problems of reduced seed quality, large loss of vigor, serious seed pests, etc., and achieve the goal of prolonging the shelf life and improving the utilization rate Effect

Inactive Publication Date: 2012-11-14
INST OF BOTANY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is little artificial cultivation at home and abroad
[0003] Conventional method of introducing and acclimatizing Nepalese yellow flowers, due to serious seed insect damage and high water content, the quality of long-term storage seeds will decline, and the vitality will be greatly lost. It is difficult to raise seedlings by conventional sowing, and the reproduction efficiency is low
There are very few research reports on the genus Chrysanthemum at home and abroad, and the research on its seed preservation and breeding technology is still blank

Method used

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  • Piptanthus nepalensis seed preservation and seedling raising methods
  • Piptanthus nepalensis seed preservation and seedling raising methods
  • Piptanthus nepalensis seed preservation and seedling raising methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, the impact of different storage methods on the seed quality and emergence rate of Nepalese yellow flower

[0032] The measuring method of described imbibition rate is: randomly extract a certain amount of Nepalese yellow flower seeds; Soak the seeds in normal temperature water on the 1st day, then change the clear water of the temperature according to the test requirements every day to naturally drop to room temperature, replace the soaked seeds every day before soaking the clear water. Pick out the seeds, record the daily number of seeds imbibed, and calculate the imbibition rate with the following formula:

[0033]

[0034] Germination rate calculation formula:

[0035]

[0036] 1. Effects of different storage methods on seed weight, imbibition rate and germination rate

[0037] Set up two seed preservation methods of normal temperature dry storage and low temperature moisturizing respectively, fix 10 seeds in each group and regularly weigh the se...

Embodiment 2

[0042] Embodiment 2, the influence of different treatment methods on the imbibition and germination of Nepalese yellow flower seeds

[0043] 1. Effect of soaking seeds at different temperatures on imbibition process, imbibition rate and germination rate

[0044]Randomly select the seeds of Chrysanthemum chinensis in low-temperature, moisturizing and refrigerated storage for 21 months, and treat them at three soaking temperatures, 50 seeds for each treatment, and repeat 3 times. On the first day, soak the seeds in 15°C-25°C normal temperature water for 1 day, take out the imbibition seeds, and separate the insect-eaten seeds; Soak the seeds in clear water at three initial temperatures, let them drop to room temperature naturally, take out the imbibition seeds every day, replace the clear water with initial temperatures of 15°C to 25°C, 50°C to 60°C and 80°C to 100°C, and soak the seeds until On the 10th day, only one grain failed to imbibition after normal temperature treatmen...

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PUM

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Abstract

The invention discloses methods for promoting introduction, preservation, germination and seedling raising of piptanthus nepalensis seed. An efficient preservation method provided by the invention is characterized by firstly selecting high-quality fresh seeds and then preserving the fresh seeds for a long time at a low temperature of 0-5 DEG C in a sealed environment. The seed germination and seedling raising method provided by the invention comprises variable temperature imbibition, acid etching with 98% concentrated sulfuric acid, seed soaking in warm water and constant temperature accelerating germination. By utilizing the preservation technology provided by the invention, the worm eating rate of the seeds is reduced to 0%, the germination rate is improved by about 40% compared with that in the conventional method, the germination rate and the seedling rate are improved and the seedling raising process is shortened. The methods provide key technology for efficient preservation, introduction and culture of piptanthus nepalensis germplasm resources.

Description

technical field [0001] The invention relates to a method for promoting seed preservation, sowing seedling raising and introduction and preservation technology of Nepalese yellow flower tree (Piptanthus nepalensis). Background technique [0002] Nepal yellow flower tree, Fabaceae, yellow flower tree genus, also known as nasturtium leaf yellow flower tree, evergreen shrub, distributed in Tibet, Yunnan, Nepal, Bhutan, Kashmir. This species likes a warm and humid climate, and is mainly distributed at the edge of coniferous forests and watersides on hillsides at an altitude of about 3,000 meters. It has high yield and large particles, and has potential ecological restoration and economic value. At present, there is little artificial cultivation at home and abroad. [0003] The introduction and domestication of Nepalese yellow flower by conventional methods, due to serious seed insect damage and high water content, the quality of long-term storage seeds will decline, and the vit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00A01G1/00
Inventor 唐宇丹石雷普布次仁
Owner INST OF BOTANY CHINESE ACAD OF SCI
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