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Simple seedling raising method for improving germination rate of catalpa bungei seeds

A technology of germination rate and seeds, which is applied in the field of simple seedling raising to improve the germination rate of catalpa seeds, and can solve the problems of low germination rate, low survival rate, uneven growth, etc.

Inactive Publication Date: 2019-06-21
SHANDONG FOREST SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, catalpa seedlings are mostly sown directly in the field (Cao Bin, 2008; Zhang Yongjun, 2018). There are problems such as low germination rate, low survival rate, and uneven growth, and it is impossible to breed a large number of varieties in a short period. Seedlings with uniform quality (Zhao Kun, 2010)

Method used

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  • Simple seedling raising method for improving germination rate of catalpa bungei seeds
  • Simple seedling raising method for improving germination rate of catalpa bungei seeds
  • Simple seedling raising method for improving germination rate of catalpa bungei seeds

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) The steps of facility construction, seed preparation, substrate preparation, plug-on-demand planting and substrate disinfection are consistent;

[0046] (2) Post-sowing management: After the seeds are sown on demand, the temperature in the greenhouse is kept at 8°C, and the temperature of the temperature-controlled bamboo bed is controlled at 25°C. The seeds begin to whiten gradually in 6-8 days, and the germination rate reaches 25% on the 6th day. When the germination rate reaches 40%, remove the outermost felt blanket of the temperature-controlled bamboo bed, and stop heating; when the seed germination rate reaches 70% on the 9th day, remove the inner plastic film, and remove all the plugs at the same time In the nursery room, continue to grow seedlings directly in the greenhouse. Spray and moisturize the plug seedlings at noon. During the day, the temperature in the shed is controlled at 15°C, and the relative humidity is controlled at 90%. After the leaf buds ar...

Embodiment 2

[0050] (1) The steps of facility construction, seed preparation, substrate preparation, plug-on-demand planting and substrate disinfection are consistent;

[0051] (2) Post-sowing management: After the seeds are sown on demand, the temperature in the greenhouse is kept at 10°C, and the temperature of the temperature-controlled bamboo bed is controlled at 25°C. The seeds begin to whiten gradually in 6-8 days, and the germination rate is 30% on the 6th day. When the germination rate reaches 40%, remove the felt cloth blanket on the outermost layer of the temperature-controlled bamboo bed, and stop heating; when the seed germination rate reaches 80% on the 9th day, remove the inner plastic film, and remove all the plugs at the same time In the nursery room, continue to grow seedlings directly in the greenhouse. Spray and moisturize the plug seedlings at noon. During the day, the temperature in the shed is controlled at 28°C, the relative humidity is controlled at 85%, and ventilat...

Embodiment 3

[0055] (1) The steps of facility construction, seed preparation, substrate preparation, plug-on-demand planting and substrate disinfection are consistent;

[0056] (2) Post-sowing management: After the seeds are sown on demand, the temperature in the greenhouse is kept above 12°C, and the temperature of the temperature-controlled bamboo bed is controlled at 26°C. The seeds gradually turn white after 6-8 days, and the germination rate is 25% on the 7th day. When the germination rate reaches 30%, remove the felt cloth blanket on the outermost layer of the temperature-controlled bamboo bed, and stop heating; when the seed germination rate reaches 75% on the 9th day, remove the inner plastic film, and remove all the plugs at the same time In the nursery room, continue to grow seedlings directly in the greenhouse. Spray and moisturize the plug seedlings at noon. During the day, the temperature in the shed is controlled at 20°C, and the relative humidity is controlled at 80%. Ventila...

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Abstract

The invention discloses a simple seedling raising method for improving the germination rate of catalpa bungei seeds, and relates to the field of propagation and cultivation of trees. A seedling cultivation room is built in an existing greenhouse, a temperature control bamboo bed is made, based on hole-tray sowing, universal cultivation media used for seedling cultivation of vegetables and forestryin production are adopted, and the influence of soil pathogenic bacteria on seed germination is avoided; through control over the greenhouse and the temperature control bamboo bed and related technical processes, the temperature and humility of the seedling environment are adjusted, the germination rate of the seeds reaches 90% or above, after transplanting, the seedling rate is 85% or above, thediameter at breast height and the height of seedlings reach 2 cm or above and 3 m or above respectively in the same year, the neat and tidy seedlings can be cultivated through the method, the seedling cultivation period is shortened, and the quality of the catalpa bungei seedlings is improved. According to the method, the facility construction cost is low, operation is simple and convenient, current seedling production conditions can be met, and the method can be widely applied to soil warming greenhouse seedling cultivation with simple facilities.

Description

technical field [0001] The invention relates to the field of propagation and cultivation of forest trees, in particular to a simple seedling raising method for improving the germination rate of catalpa seedlings. Background technique [0002] Catalpa ( Catalpa bungei C.A.Mey.) for Bignoniaceae ( Bignoniaceae ) Catalpa ( Catalpa Scop.) deciduous tree, native to China, with strong adaptability, is now widely distributed in the Yangtze River Basin and the Yellow River Basin. Catalpa has high economic value, excellent material, beautiful tree appearance and wide range of uses. It is a precious and high-quality timber tree species and garden ornamental tree species traditionally cultivated in my country. Catalpa, as an excellent and precious native tree species, has been included in the list of important tree species preservation and collection. Accelerating the breeding of catalpa seedlings has become an urgent problem to be solved at present. But catalpa is difficult to ...

Claims

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Application Information

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IPC IPC(8): A01G17/00
Inventor 李永涛郑洪义董玉峰杨庆山王霞王振猛周健魏海霞王莉莉李宗泰
Owner SHANDONG FOREST SCI RES INST
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