Method for improving germination uniformity of keteleeria cyclolepis flous
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A technology of uniformity and oil fir, which is applied in the field of improving the germination uniformity of Jiangnan Yale fir, can solve the problems of poor germination uniformity, short emergence period of sprouts, and low plump rate, so as to achieve uniform germination, good quality and fullness of sprouts high rate effect
Active Publication Date: 2016-11-30
GUANGXI FORESTRY RES INST
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[0004] The present invention aims at the problems of low fullness rate, low germination rate, poor germination uniformity and long emergence period of the seeds of Yale fir in the prior art. Fast, short emergence and strong sprouts
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Embodiment 1
[0031] The method of operation includes the following steps:
[0032] (1) Drying and removing wings: Dry the cones of Paleopsis chinensis in the air until the seeds completely fall off, then continue to dry the seeds, rub the seeds with hands when the wings fall off and stop drying, and manually rub the seeds repeatedly to separate the seeds completely, and obtain De-wing the seeds.
[0033] (2) Acquisition of seeds with high fullness rate: use an electric net sorter to remove the winged seeds obtained in step (1), and set the speed to 1000r / min to remove empty seeds, shriveled seeds, insect particles and other sundries, repeat 2 times, Obtain full seeds with high purity (seed fullness rate is more than 80%), and pack into cloth bags.
[0034] (3) Sleep break at low temperature: Store the seeds treated in step (2) in the refrigerator at 3°C and store them at low temperature, take them out one month later and wait for sowing.
[0035] (4) Warm soup degreasing: Put the low-t...
Embodiment 2
[0041] The method of operation includes the following steps:
[0042] (1) Drying and removing wings: Dry the cones of Paleopsis chinensis in the air until the seeds completely fall off, then continue to dry the seeds, rub the seeds with hands when the wings fall off and stop drying, and manually rub the seeds repeatedly to separate the seeds completely, and obtain De-wing the seeds.
[0043] (2) Acquisition of seeds with high fullness rate: use an electric net sorter to remove the winged seeds obtained in step (1), and set the speed to 1000r / min to remove empty seeds, shriveled seeds, insect particles and other sundries, repeat 2 times, Obtain full seeds with high purity (seed fullness rate is more than 80%), and pack into cloth bags.
[0044] (3) Sleep break at low temperature: The seeds treated in step (2) are stored in the refrigerator at a low temperature of 5°C, and taken out after 2 months for sowing.
[0045] (4)) Degreasing in warm soup: Put the seeds of Chinese fir ...
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Abstract
The invention discloses a method for improving the germination uniformity of keteleeria cyclolepis flous. The main technical parameters of the method comprise: (1) high full rate seed obtaining, wherein purification selection with an electric purification selection machine is used to replace a low efficiency soaking floating method to remove empty particles; (2) low temperature dormancy breaking, wherein short-term low-temperature storage at a temperature of 3-5 DEG C is performed to break dormancy; (3) grease removing with a NaOH warm soup, wherein the seeds were lastingly soaked in warm water for 4-5 h, and then soaking with a NaOH solution with a mass concentration of 1.0-1.5% is performed for 16 h so as to complete the grease removing; (4) seed soaking with clear water and treatment with an agent, wherein the seeds are placed in clear water with an initial temperature of 45-55 DEG C to soak for 24-36 h, and then the seeds are soaked for 2 h in a 500 ppm gibberellin solution; and (5) dense sowing on a sand bed, wherein the seeds are uniformly sprinkled on a flat sand bed, and the sowing amount is 0.5-0.6 kg/m<2>. According to the present invention, with the application of the method to perform the treatment and the germination accelerating on the keteleeria cyclolepis flous seeds, the full rate of the seeds before the sowing can achieve more than 80%, the field germination rate can achieve more than 75%, the germination time is 15-25 days, the nursery seedling emergence germination rate achieves more than 70%, the germination uniformity and the nursery seedling emergence germination rate of the keteleeria cyclolepis flous are substantially improved, and the germination time is shortened.
Description
technical field [0001] The invention belongs to the technical field of forestry planting, and in particular relates to a method for improving the uniformity of germination of Chinese fir. Background technique [0002] Jiangnan oil fir (Keteleeria cyclolepis Flous) is a large evergreen tree belonging to the family Pinaceae. It is unique to southern my country. Its trunk is straight, its wood is solid, and its texture is straight. In addition to its wide range of uses, it is also an excellent tree species for garden greening. The main habit characteristics of this tree species are strong stress resistance, extreme drought tolerance, and fast growth. In recent years, Guangxi, Fujian, Zhejiang, Guangdong, Hunan, Jiangxi and other provinces have begun to pay attention to the promotion and utilization value of Yale fir, and have carried out related research on germplasm resource investigation and collection, seed collection and seedling cultivation, and afforestation models. At p...
Claims
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Application Information
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