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Method for cutting propagation of Leersia hexandra Swartz

A cutting propagation and river sand technology, which is applied in the fields of botanical equipment and methods, horticulture, and application, can solve the problems of low seed germination rate, complex number of components, low seed setting rate, etc., and achieves simple and fast methods, easy operation, and survival. high rate effect

Inactive Publication Date: 2013-02-13
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plant has certain limitations in practical application, such as: the number of components is complex, and it is difficult to distinguish individual seedlings; the seed setting rate is not high, and the seed germination rate is low; it can only bear fruit once a year, which cannot meet large-scale engineering repairs Wait

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) The vigorously growing Lishihe was collected from the wild and cultivated in the greenhouse for 2 weeks with the improved hoagland medium.

[0012] (2) Choose garden soil, river sand, peat, peat + river sand + perlite + vermiculite (mass ratio = 40:20:1:1) and tap water + nutrient solution (mass ratio = 100:1) as cuttings Substrate; the nutrient solution is a special nutrient solution for hydroponic plants - Green Leaf King, purchased from Guangzhou Lvzhiyuan Horticultural Plant Material Farm.

[0013] (3) Cutting step (1) The cultivated unaged stems of Lishihe are used as cuttings, leaving 2 nodes for each cutting, leaving 2cm at the end of the nodes, and cutting obliquely; soak 1 / 2 of Lishihe cuttings in tap water For 5 seconds, the cuttings were placed in the moistened step (2) substrate in the culture cup, and the substrate was kept moist.

[0014] Cut 16 cuttings for each substrate; water once a day to keep the cutting substrate moist; measure the ambient temp...

Embodiment 2

[0018] Except that the temperature in the cutting process is: the average high temperature is 28°C and the average low temperature is 20°C, the cutting method is as in Example 1, the plants are harvested after 30 days of plant cutting, and various indicators are measured: plant height, root length, root number, root freshness Weight, plant fresh weight and growth rate, the results are shown in Table 2.

[0019] Table 2: The growth of Lishihe cuttings after 30 days (the average high temperature of the ambient temperature is 28°C, and the average low temperature is 20°C)

[0020] garden soil river sand Tap water + nutrient solution (mass ratio 100:1) peat Peat + river sand + perlite + vermiculite (mass ratio 40:20:1:1) Survival rate (%) 100 94 94 94 100 Root fresh weight (mg / tree) 17 20 7.4 54 46 Plant fresh weight (mg / tree) 200 259 254 319 364 Plant height (cm / tree) 26 26 27 29 28 Root length (cm / tree) 9.9 8.2 ...

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Abstract

The invention discloses a method for cutting propagation of Leersia hexandra Swartz. The method comprises the following steps of: (1) culturing the Leersia hexandra Swartz in an improved hoagland culture solution for 2 to 3 weeks at room temperature; (2) selecting garden soil, river sand, turf, turf + river sand + pearlite + vermiculite, or tap water + nutrient solution as a cutting matrix, and controlling the environmental temperature to be between 20 and 33 DEG C, wherein the mass ratio of the turf to the river sand to the pearlite to the vermiculite in the turf + river sand + pearlite + vermiculite is 40:20:1:1, the mass ratio of the tap water to the nutrient solution in the tap water + nutrient solution is 100:1, and the nutrient solution is a commercially available nutrient solution, namely 'King of green leaves' special for hydroponic plants; and (3) shearing un-aged stems of the Leersia hexandra Swartz cultured in the step (1) as cutting slips, soaking 1 / 2 of each Leersia hexandra Swartz cutting slip in the tap water for 5 seconds, then cutting the slip in the matrix in the step (2), and keeping the matrix to be moist, wherein each cutting slip comprises 1 to 2 nodes, the node end is 2 to 3cm in length, and an incision is chamfered. The method is simple and quick, easy to operate and low in cost.

Description

technical field [0001] The invention relates to the field of phytoremediation of heavy metal pollution, that is, a kind of enrichment plant that can be used for the remediation of chromium, copper, nickel polluted soil and water body - Li Shi Wo ( Leersia hexandra Swartz) method of cutting propagation. Background technique [0002] In recent years, due to the development of industrial and mining enterprises, large-scale application of chemical fertilizers, organic fertilizers, urban waste, sludge and sewage irrigation in agricultural production, soil heavy metal pollution in China and the world has become more and more serious. Phytoremediation technology is currently one of the most effective methods for heavy metal pollution control. This technology mainly uses hyperaccumulator plants to transfer pollutants in the soil to the aboveground parts of plants, and then harvests the plants to achieve the purpose of reducing soil pollutants. [0003] Lishihe is the first chromi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
Inventor 张学洪张杏锋
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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