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A kind of method utilizing exogenous melatonin to improve stevioside content

A technology of stevia and melatonin, which is applied in the field of agricultural cultivation, can solve the problems of non-standard cultivation, unsatisfactory products, and reduce the economic benefits of stevia processing enterprises, and achieves the effects of increasing the content of stevia and promoting accumulation.

Active Publication Date: 2020-11-24
明光现代农业科技合作推广服务中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in terms of production, due to irregular cultivation, the harvested products of varieties with high stevia content may not be satisfactory, which greatly reduces the economic benefits of stevia processing enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for utilizing exogenous melatonin to increase stevioside content, comprising the following steps:

[0018] (1) Variety selection: choose Jiangtian No. 1, a variety with high stevioside content;

[0019] (2) Seedling raising: Use cuttings to keep the original species, select the top branches of the mother plant stem, pour the bottom water after inserting, and then compact with fine sand to make the cuttings closely contact with the soil, leave bud nodes, and cover with sunshade nets , Spray water 2 to 3 times a day to prevent cuttings from wilting, take root in about 10 days, and water according to the condition of seedlings after rooting; use 50ppm rooting powder solution to soak the roots at the cuttings of branches, and the row spacing of cuttings is 4cm×3cm, and the depth is 2cm.

[0020] (3) Management at the seedling stage: after the cuttings are all rooted, spray the leaves with 1% sucrose and 0.1% potassium dihydrogen phosphate solution; spray with 0.5% ...

Embodiment 2

[0027] A method for utilizing exogenous melatonin to increase stevioside content, comprising the following steps:

[0028] (1) Variety selection: select Shoutian No. 3, a variety with high stevioside content;

[0029] (2) Seedling raising: Use cuttings to keep the original species, select the top branches of the mother plant stem, pour the bottom water after inserting, and then compact with fine sand to make the cuttings closely contact with the soil, leave bud nodes, and cover with sunshade nets , Spray water 2 to 3 times a day to prevent cuttings from wilting, take root in about 10 days, and water according to the condition of seedlings after rooting; use 50ppm rooting powder solution to soak the roots at the cuttings of branches, and the row spacing of cuttings is 4cm×3cm, and the depth is 2cm.

[0030] (3) Management at the seedling stage: after the cuttings are all rooted, spray the leaves with 1% sucrose and 0.1% potassium dihydrogen phosphate solution; spray with 0.5% u...

Embodiment 3

[0037] A method for utilizing exogenous melatonin to increase stevioside content, comprising the following steps:

[0038] (1) Variety selection: select the variety Julong No. 5 with high stevioside content;

[0039](2) Seedling raising: Use cuttings to keep the original species, select the top branches of the mother plant stem, pour the bottom water after inserting, and then compact with fine sand to make the cuttings closely contact with the soil, leave bud nodes, and cover with sunshade nets , Spray water 2 to 3 times a day to prevent cuttings from wilting, take root in about 10 days, and water according to the condition of seedlings after rooting; use 50ppm rooting powder solution to soak the roots at the cuttings of branches, and the row spacing of cuttings is 4cm×3cm, and the depth is 2cm.

[0040] (3) Management at the seedling stage: after the cuttings are all rooted, spray the leaves with 1% sucrose and 0.1% potassium dihydrogen phosphate solution; spray with 0.5% ure...

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PUM

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Abstract

The invention provides a method for improving the content of stevioside by utilizing exogenous melatonin. The method comprises the following steps: (1) selection of varieties, namely selecting varieties with high content of stevioside; (2) seedling breeding, namely using cutting seedlings, keeping breeder seeds, selecting top branches of stock plants, watering enough basal water after inserting, and then compacting using fine sandy soil; (3) seedling management; (4) transplanting, namely selecting sandy loam or loam as transplanting plots, and irrigating and draining well; and (5) field management, namely inspecting seedlings and replanting, removing weak seedlings and replanting in 10 days after recovering the seedlings, ensuring whole and strong seedlings, and preventing reduced production of weak seedlings or seedling missing and bed breaking; topping and pinching; water management; fertilizer management; intertilling and weeding, being favorable for accumulating stevioside; preventing and controlling diseases and insect pests at the same time. The stevia rebaudiana production is managed from the two aspects of standardized production of stevioside and the control of exogenous substances to promote the accumulation of stevioside and improve the content of stevioside.

Description

technical field [0001] The invention relates to the technical field of agricultural cultivation, in particular to a method for increasing the content of stevioside by using exogenous melatonin. Background technique [0002] Stevia, commonly known as sweet grass, stevia and sweet tea, etc., the sweet active substance is stevioside (mainly stevioside and rebaudioside), which is about 300 times sweeter than sugar and low in calories. It is a new type of green Healthy sweetener. Because steviol glycosides have the effects of lowering blood sugar, lowering blood pressure and preventing cancer, they are favored by consumers and are planted everywhere. But in terms of production, due to irregular cultivation, even varieties with high stevioside content may yield unsatisfactory products, which greatly reduces the economic benefits of stevia processing enterprises. Melatonin, as a broad-spectrum physiological regulator, exists in most biological organisms. It has been used in agric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01G7/06
CPCA01G7/06A01G22/00
Inventor 王冬良胡克玲赵子津丁银媛岳凡凡李媛媛
Owner 明光现代农业科技合作推广服务中心