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Method for rapidly breaking dormancy of styrax obassia seeds through pretreatment, temperature control and constant humidity

A technology of pretreatment and jasmine flower, applied in the direction of seed and rhizome treatment, application, agriculture, etc., can solve the problems of long time, unsuitable for mass sowing, difficult seed germination inhibition, etc.

Inactive Publication Date: 2021-07-30
烟台市森林资源监测保护服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the implementation process of the existing planting and seedling raising technology of Yulinghua, there are following disadvantages: (1) Yulinghua seed coat is hard, and it is difficult to break the inhibition of seed germination by general method, and it is time-consuming and troublesome to manually break the seed coat. , not suitable for the demand of mass sowing, in order to achieve the goal of breaking the seed shells in batches, it must be done by designing machinery, and the cost is relatively high; effect, while the method of partial acid-base reagent breaking dormancy has certain risk, and the cost of seedling cultivation is higher; (3) even through seed pretreatment, the existing methods for sowing and seedling cultivation of Jade bell flower generally show the germination time of 120d-150d, and the germination time The germination rate is about 34%-64%, the time is longer, and the germination rate is lower

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 The method for quickly breaking the dormancy of Jade Bell flower seeds through pretreatment, temperature control and constant humidity of the present invention

[0033] After collecting the seeds of the current year or annual Yulinghua, remove the seed coat; dry the peeled seeds in the shade for 5 days, then put them in a ziplock bag and seal them, and store them in a sunny place; before sowing, the seeds are divided into two times for water absorption For the first treatment, submerge the seeds in water for the first time, soak in clean water at room temperature for 24 hours, remove the floating seeds on the upper layer, keep the seeds on the bottom layer, dry and stack the seeds for about 5 days, and then soak them in clean water at room temperature for the second time; use a concentration of 0.5g / L KMnO 4 Sterilize for 10min, wash and set aside; Sow the sunken seeds in a 5-15cm diameter and 5-15cm nutrition cup filled with light matrix; the light matrix ...

Embodiment 2

[0034] Embodiment 2 low temperature sand storage method

[0035] Submerged in the current year or annual Yulinghua seeds with the seed coat removed, soaked in clean water indoors at room temperature for 24 hours, removed the floating seeds in the upper layer, and kept the seeds in the lower layer; use KMnO with a concentration of 0.5g / L 4 Disinfect for 10 minutes, wash and set aside; mix the sinking seeds with wet sand (holding into a ball, it is better to disperse as soon as you pat) according to the ratio of 1:3, put it into a gauze bag; dig 60cm deep, 40cm radius For the soil pit, place about 3cm of coarse dry sand on the bottom of the pit, place the gauze bag on the dry sand, insert 2-3 corn stalks or bamboos of about 70cm around the gauze bag, cover the gauze bag with soil, and ensure that the corn The upper end of the stalk or bamboo leaks out of the ground.

Embodiment 3

[0036] Embodiment 3 concentrated sulfuric acid treatment mode

[0037] Submerge the seeds of the current year or annual Jade Bell with the seed coat removed, soak in clean water indoors at room temperature for 24 hours, remove the floating seeds in the upper layer, and keep the seeds in the lower layer; sterilize with 0.5g / L KMnO4 for 10 minutes, wash and set aside; Select 150 plump seeds, treat them with concentrated sulfuric acid for about 30 minutes, and carbonize the surface of the seed coat. After taking out the seeds, wash them and place them in 3 petri dishes with moist absorbent cotton for seed germination; use a light incubator and set for 12 hours Light and 12h dark treatment, constant temperature about 15°C, to accelerate the germination of Yulinghua seeds in the petri dish.

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Abstract

The invention discloses a method for quickly breaking dormancy of styrax obassia seeds through pretreatment, temperature control and constant humidity. The breeding method comprises the following steps: carrying out the following temperature control and constant humidity treatment on the styrax obassia seeds subjected to shade drying, air drying, sealed stacking and two times of water absorption treatment: controlling the daytime lowest temperature to be 0-1 DEG C and the daytime highest temperature to be 9-11 DEG C for 18-22 days; controlling the minimum daytime temperature to be 2-4 DEG C and the maximum daytime temperature to be 19-21 DEG C for 14-18 days; controlling the highest daytime temperature to be 16-18 DEG C until the seeds germinate; and in the process, keeping the humidity of a culture medium at 20-35%. According to the method, manual modes such as other chemical reagents or mechanical seed shell breaking are not needed, so that the germination time of styrax obassia is greatly shortened, and the seed germination rate is increased.

Description

technical field [0001] The invention relates to the technical field of sowing and raising seedlings of japonica japonica. Background technique [0002] Styrax obassia Sieb.et Zucc. belongs to the genus Styrax of the family Styracaceae, and is mainly distributed in Liaoning, Shandong, Anhui, Zhejiang, Hubei, Jiangxi and Henan provinces in China. Positive tree species grow better in moist and fertile soil at an altitude of 700-1500 meters. Jade bell flower wood is a diffuse-porous wood, with no difference between sapwood and heartwood, light yellow to yellowish brown, hard material, high elasticity, dense texture, easy to process; wood can be used as wood for utensils, carving wood, turning wood, etc. ; The flowers are beautiful and fragrant, and can be used to extract aromatic oil and ornamental; the seed oil can be used to make soap and lubricating oil. [0003] Because it is difficult to break the seed dormancy of J. japonicus, it is difficult to expand the population thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00
CPCA01C1/00
Inventor 苗杰路兆军赵莹王淑慧王连红陈丽英
Owner 烟台市森林资源监测保护服务中心
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