CN1301638C

CN1301638C - Technological method for increasing sorb seed germination percentage

Info

Publication number: CN1301638C
Application number: CN 200510127301
Authority: CN
Inventors: 沈海龙; 杨玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-02
Filing date: 2005-12-02
Publication date: 2007-02-28
Anticipated expiration: 2025-12-02
Also published as: CN1774971A

Abstract

The present invention relates to a germination accelerating method of service tree seeds, particularly to a process method for improving the germination rate of service tree seeds. The present invention is characterized in that the service tree seeds are firstly immersed in 20 to 60 grams / liters of potassium nitrate solution, and is soaked in clear water, and then, the seeds are disinfected by 2 to 5 grams /liters of potassium permanganate water solution. After the clear water rinses out the potassium permanganate water solution, the seeds are mixed with wet sand (the water content is from 70 to 80%), warm and cold alternation stratification is successively carried out in the environments of 0 to 5 DEG C, 22 to 30 DEG C and 0 to 5 DEG C, and in the meantime, a seed-sand mixture is frequently flipped and stirred and water is sprayed to the seed-sand mixture; to keep the ventilation of the seeds and the humidity of the seed-sand mixture. The service tree seeds are soaked for 24 to 72 hours by 20 to 60 grams / liters of potassium nitrate solution, the service tree seeds are soaked for 2 to 5 days after the service tree seeds are soaked in the potassium nitrate solution, the time of disinfection by 2 to 5 grams /liters of potassium permanganate water solution is <=3 hours, and warm and cold alternation stratification is carried out to the disinfected seeds. The present invention relates to has the advantages of enhanced germination rate of the service tree seeds, increased germination regularity of the service tree seeds, low production cost, convenient operation and easy popularization; the present invention is good for enhancing the resistance capacity of seedlings of service trees to insect infringement, and simultaneously, the edaphic fertility can be increased. The present invention is suitable for being applied to production practice.

Description

Improve the sorb seed germination percentage process

Technical field: the present invention relates to a kind of sibirica seeds germination accelerating method, be specially and improve the sorb seed germination percentage process.

Background technology: sibirica seeds is the seed of deep dormancy type.The germination hastening method of seed has low temperature lamination and HORMONE TREATMENT etc.The artificial treatment sibirica seeds mainly is to mix damp sand to refrigerate or hide in the production practices at present, and the time that seed afterripening needs is longer, is generally 2～4 months, even the longer time, and sibirica seeds could be sprouted successively.Even like this, the germination rate of sibirica seeds does not reach the requirement of production far away still less than 30%.People can only obtain more nursery stock with the multicast seed in the production, have caused the serious waste of human and material resources and financial resources.Someone once reported and used the HORMONE TREATMENT sibirica seeds, can improve the germination rate (germination rate can bring up to 84% from 26%) of sibirica seeds, this method is the cost height not only, and may produce injurious effects to the nutrient component of beneficial microbe group in the soil and soil, and HORMONE TREATMENT forms growth of seedlings situation and unclear after to seed germination, so and the extensive seed application of handling in being not suitable for producing.

Summary of the invention: low in order to solve sorb seed germination percentage, germinate uneven (germination vigor is low) can not satisfy the problem of production practices requirement, the objective of the invention is to, and provides that a kind of making is comparatively simple, the raising sorb seed germination percentage process of handled easily.The object of the present invention is achieved like this: sibirica seeds was soaked 24～72 hours with 20～60 grams per liter potassium nitrate solutions earlier, soaked 2～5 days with clear water again, then seed was sterilized≤3 hours with the potassium permanganate solution of 2～5 grams per liters, after with clear water potassium permanganate solution being rinsed well, be that 70%～80% damp sand mixes again with seed and water content, carry out changes in temperature then and replace the lamination processing, handled 10～20 days with elder generation's cold lamination under 0～5 ℃ of condition, warm lamination processing was a circulation in 10～20 days under 22～30 ℃ of conditions again, the changes in temperature alternate treatment can be once to circulate, also can be repeatedly to circulate, often stir and stir kind of sand mixture therebetween and spray moisture for kind of sand mixture, keep the ventilation of seed and the humidity of kind sand mixture.Advantage of the present invention is: improve the germination rate of sibirica seeds, increase the germination regularity of sibirica seeds, and production cost is low, easy to operate, easily promote, help to improve the resistivity of Sorbus alnifloria seedling, can also increase the fertility of soil simultaneously, be fit to use in the production practices sick worm infringement.

Embodiment: sibirica seeds is soaked with the potassium nitrate solution of 20～60 grams per liters earlier, soak with clear water again, then with the potassium permanganate solution sterilization of seed with 2～5 grams per liters, after with clear water potassium permanganate solution being rinsed well, again seed is mixed damp sand (water content 70～80%), successively in 0～5 ℃, 22～30 ℃, 0～5 ℃ environment, carry out the lamination processing that changes in temperature replace, often stir and stir kind of sand mixture therebetween and spray moisture for kind of sand mixture, keep the ventilation of seed and the humidity of kind sand mixture.Sibirica seeds was soaked 24～72 hours with 20～60 grams per liter potassium nitrate solutions.After soaking, soaked 2～5 days with clear water again potassium nitrate solution.Potassium permanganate solution disinfecting time≤3 of 2～5 grams per liters hour.

Seed after the sterilization is carried out changes in temperature replace the lamination processing, earlier cold lamination is handled and warmed up lamination again after 10～20 days 10～20 days was a circulation, and the changes in temperature alternate treatment can be once to circulate, and also can be repeatedly to circulate.The temperature that cold lamination is handled is 0～5 ℃, and the temperature that warm lamination is handled is 22～30 ℃.Utilize 20～60 grams per liter potassium nitrate solutions to soak the Sorbus alnifloria mature seed after 24～72 hours, with clear water the potassium nitrate raffinate is rinsed well, continuation was soaked sibirica seeds 2～5 days with clear water, potassium permanganate solution with 2～5 grams per liters stirs sterilization to the sibirica seeds of above-mentioned processing with through the particulate river sand that cleans respectively then, and disinfecting time needs≤3 hours.With clear water the potassium permanganate raffinate in seed and the river sand is cleaned up, with kind of sand ratio is that 1: 3 volume ratio is mixed (the about 70-80% of water content, holding not water outlet of sand with hand gets final product), be contained in (covering the hole that stays a little ventilations) in the wooden case or Plastic Drum with cover, place 0～5 ℃ the cold lamination of low temperature environment 10～20 days.Then, transferred in 22～30 ℃ the room temperature environment warm lamination 10～20 days planting sand mixture.After the warm lamination, transfer to the cold lamination of continuation in 0～5 ℃ the low temperature environment planting sand mixture.Often stir and stir kind of a sand mixture therebetween, keep the ventilation of seed.This treatment technology can promote the physiology after-ripening of sibirica seeds, increases the germination regularity of sibirica seeds, improves the germination rate of sibirica seeds.Cold lamination is in the time of 50 days, and sibirica seeds splits the mouth rate and can reach more than 50%.Cold lamination is in the time of 70 days, and sorb seed germination percentage reaches more than 70%, and can produce sowing this moment.The present invention not only can improve the germination rate of sibirica seeds, and the germination regularity of seed is good, can satisfy the needs in the production fully.Have simple to operate, effect is obvious, pollution-free, easy popularization.

Embodiment 1, with 7 kilograms of the Baihua Shan Mountain sibirica seeds that picks up from five campsite, Yichun, Heilongjiang Province district in 1 year of 0-5 ℃ of low temperature seal storage, with the potassium nitrate aqueous solution soaking of 40 grams per liters after 72 hours, continuation was soaked 4 days with clear water, after the potassium permanganate solution of 5 grams per liters is disinfected 2 hours, with kind of sand ratio is that 1: 3 volume ratio is mixed (water content about 80%, holding not water outlet of sand with hand gets final product), cold lamination is 10 days in 0-5 ℃ low temperature environment, in 25 ℃ room temperature environment, warm up lamination 10 days then, continue 0-5 ℃ of cold lamination afterwards.Continuing cold lamination in the time of 50 days, the Baihua Shan Mountain sibirica seeds splits the mouth rate and reaches 56.4%.Continue cold lamination in the time of 70 days, the Baihua Shan Mountain sorb seed germination percentage is 74.3%.

2 kilograms of the Baihua Shan Mountain sibirica seeds in the Dunhua area, Jilin that embodiment 2, processing are newly gathered, with the potassium nitrate aqueous solution soaking of 60 grams per liters after 48 hours, continuation was soaked 5 days with clear water, after the potassium permanganate solution of 2 grams per liters is disinfected 3 hours, with kind of sand ratio is that 1: 3 volume ratio is mixed (water content about 80%, hold not water outlet of sand with hand and get final product), and cold lamination is 20 days in 0-5 ℃ low temperature environment, in 30 ℃ room temperature environment, warm up lamination 20 days then, continue 0-5 ℃ of cold lamination afterwards.Result promptly has sibirica seeds to split mouth for continuing cold lamination in the time of 30 days.Continue cold lamination in the time of 50 days, the Baihua Shan Mountain sibirica seeds splits the mouth rate and reaches 60.5%.Cold lamination is in the time of 70 days, and the Baihua Shan Mountain sorb seed germination percentage is 80.1%.

1 kilogram in the quickbeam seed that embodiment 3, processing are newly gathered, with the potassium nitrate aqueous solution soaking of 20 grams per liters after 24 hours, continuation was soaked 3 days with clear water, after the potassium permanganate of 5 grams per liters is disinfected 1 hour, with kind of sand ratio is that 1: 3 volume ratio is mixed (water content about 80%, hold not water outlet of sand with hand and get final product), and cold lamination is 10 days in 0-5 ℃ low temperature environment, in 25 ℃ room temperature environment, warm up lamination 10 days then, continue 0-5 ℃ of cold lamination afterwards.Result is for continuing cold lamination in the time of 30 days, and seed splits the mouth rate and reaches 50%.Continue cold lamination about 50 days, percentage of seedgermination reaches 80%.

Claims

1, a kind of raising sorb seed germination percentage process, it is characterized in that: sibirica seeds was soaked 24～72 hours with 20～60 grams per liter potassium nitrate solutions earlier, soaked 2～5 days with clear water again, then seed was sterilized≤3 hours with the potassium permanganate solution of 2～5 grams per liters, after with clear water potassium permanganate solution being rinsed well, be that 70%～80% damp sand mixes again with seed and water content, carry out changes in temperature then and replace the lamination processing, handled 10～20 days with elder generation's cold lamination under 0～5 ℃ of condition, warm lamination processing was a circulation in 10～20 days under 22～30 ℃ of conditions again, the changes in temperature alternate treatment can be once to circulate, also can be repeatedly to circulate, often stir and stir kind of sand mixture therebetween and spray moisture for kind of sand mixture, keep the ventilation of seed and the humidity of kind sand mixture.