Method for accelerating reproduction of superior individual plants of stevia rebaudiana by regulating sunlight
A kind of stevia, an excellent technology, applied in the field of adjusting sunlight to speed up the reproduction of an excellent stevia plant, can solve the problems of interruption of vegetative growth, no one proposes, shortening of sunshine time, etc., and achieve the effect of increasing yield
Inactive Publication Date: 2018-08-03
林晶
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AI Technical Summary
Problems solved by technology
However, after entering the summer solstice in nature, the sunshine time is gradually shortened, and the short-day sunshine required for the differentiation of stevia flower buds can be reached in July, so that the vegetative growth is interrupted
No one has yet proposed a technical solution to this problem
Method used
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Experimental program
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Effect test
Embodiment Construction
[0027] A method for rapid propagation of stevia, comprising the steps of:
[0028] The natural conditions of stevia cultivation plots: 32 degrees north latitude, Huaihe River basin, sandy loam.
[0029] (1) Take the root stubble: cut off the stem section of Stevia rebaudiana above the ground and 2 cm below the ground after the end of July;
[0030] (2) Cultivation in pots: root stubbles are planted in flower pots with soil;
[0031] (3) Long-term light cultivation: before the new shoots germinated in the flower pot, move into the light cultivation room to continue cultivation, the light intensity is 2000-4000lex, the temperature is 25-30℃, the day / night time is 12hr / 12hr, and the fertilizer and water are normally supplied ;
[0032] (4) Cutting and propagation: when the seedlings from the part of the main stem buried in the soil grow to 10 pairs of leaves, begin to cut the stem section from the top, plant it in the same light cultivation room, and cut the stem when the 10 pa...
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The invention provides a method for accelerating the reproduction of stevia rebaudiana, in particular to a method for accelerating the reproduction of superior individual plants of stevia rebaudiana by regulating the sunlight. The method includes the steps that roots are planted in flowerpots after late July; the flowerpots are transferred to a light culture room for long-day light cultivation, wherein the light intensity is 2000-4000 lex, the temperature is 25-30 DEG C, and the day / night time is 12 hr / 12 hr; when seedlings germinated from the parts, buried in the soil, of main stems grow to ten pairs of leaves, stem segments are cut from the tops, cuttings cultivation is conducted in the same light culture room, and when the ten pairs of leaves are expanded, the stem segments are cut forcutting and propagation expanding; after lateral branches are grown from plants of which seedlings are sheared off, shearing and cutting continue to be conducted; after early November, the rooted stevia rebaudiana seedlings are transferred to a protective area for cultivation, and shearing, cutting and propagation expanding continue to be conducted; in the spring of April to May, propagation expanding is conducted in an open field. The method has the advantages that the superior individual plants of the stevia rebaudiana can be rapidly propagated, and the annual proliferation number of the stevia rebaudiana is improved.
Description
technical field [0001] The invention belongs to a method for accelerating the reproduction of stevia rebaudiana, and relates to a method for accelerating the reproduction of excellent single stevia rebaudiana by adjusting sunlight. Background technique [0002] Stevia, scientific name: Stevia rebaudiana (Bertoni) Hemsl. Asteraceae, perennial herb. The plant height is 1-1.3 meters, and there are 50-60 root shoots hypertrophy, up to 25 cm long. The stem is erect, the base is lignified, the upper part is soft, densely covered with short hairs, the base of the corolla is light purple or white, and the upper part is white. Achene linear, slightly flattened, brown, with pappus. Short-day plant, flowering period July-September, fruit period September-November. [0003] It is native to the alpine meadows on the border of Paraguay and Brazil in South America. Since 1977, it has been introduced and cultivated in Beijing, Hebei, Shaanxi, Jiangsu, Anhui, Fujian, Hunan, Yunnan and o...
Claims
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IPC IPC(8): A01G22/00
CPCA01G22/00
Inventor 林晶
Owner 林晶