Method for quantitatively detecting water retaining capability of plant leaf

A technology for plant leaves and water retention capacity, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of complex measurement process, long time, lack of quantitative technology, etc., and achieve accurate and reliable results. high sex effect

Active Publication Date: 2018-07-06
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method takes a long time, and the determination process is relatively complicated, more biased towards qualitative analysis, and lacks specific quantitative techniques

Method used

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  • Method for quantitatively detecting water retaining capability of plant leaf
  • Method for quantitatively detecting water retaining capability of plant leaf
  • Method for quantitatively detecting water retaining capability of plant leaf

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Take the fresh branches of the mulberry tree with leaves, and wrap the base of the plant branches with a damp cloth to slow down the water dissipation; quickly return to the laboratory, clean up the dust on the surface of the mulberry leaves, and pick the more consistent growth on the fresh branches. Put 10 leaves in a container filled with water and soak for 30 minutes; after soaking for 30 minutes, the leaves become saturated with water, take out 10 leaves after soaking, and quickly and gently absorb the water on the surface of all leaves with a paper towel , put it on a dry and ventilated desktop to let it dry and lose water. After the leaves dry and lose water at 0, 1, 2, 3, 4, and 5 hours, take out one piece of the above-mentioned dried and water-losing leaves respectively, and measure them with a texture analyzer The maximum compressive internal force F of the left half of the main vein of the dehydrated leaf max (See Table 1); Measure the blade water potential W ...

Embodiment 2

[0067] Taking mulberry as an example, all steps are the same as in Example 1.

[0068] Table 4 The maximum compressive internal force F of mulberry leaves at different dehydration moments max , leaf water potential W and physiological capacitance CP

[0069]

[0070] Table 5 Ultimate stress σ of mulberry leaves at different dehydration moments max , blade tension LT and blade stiffness LCS

[0071]

[0072]

[0073] Table 6 Average leaf stiffness LCS, relative leaf stiffness RLCS and cumulative relative leaf stiffness TRLCS of mulberry trees at different dehydration moments

[0074]

[0075] Therefore, the leaf water retention capacity of mulberry is 5.33.

[0076] Implementation effect of the present invention is as follows:

[0077] It can be seen from Tables 3 and 6 that the water retention capacity of the leaves of the mulberry tree (9.16) is greater than that of the mulberry tree (5.33), indicating that the drought resistance of the mulberry tree is higher...

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Abstract

The invention discloses a method for quantitatively detecting the water retaining capability of a plant leaf. The method comprises the following steps that a to-be-detected plant leaf is soaked in water after being cleaned, the leaf is taken out from the water after a period of time, and the moisture on the surface of the leaf is absorbed to be dry; the maximum compression internal force of the leaf after being dehydrated for one hour is detected by using a texture analyzer, and the limit stress of the leaf at different dehydrated moments is calculated; the water potential and physical capacitance of the leaf at the different dehydrated moments are detected respectively, and the tensity of the leaf is calculated; the rigidity of the plant leaf at the different dehydrated moments is calculated according the limit stress and the leaf tensity; and the rigidity of the plant leaf at the zero moment is taken as a reference, the plant relative leaf rigidity at the different dehydrated momentsis calculated, and the accumulated relative leaf rigidity at the different dehydrated moments is obtained by adding the plant relative leaf rigidity at the different dehydrated moments. The water retaining capability of different plant leaves are quantified by comparing the accumulated relative leaf rigidity of different plants. The method is easy and rapid in detection process and high in resultaccuracy, and the drought resistant capability of different plants can be compared quantitatively according to the water retaining capability of leaves.

Description

technical field [0001] The invention belongs to the technical fields of drought-resistant breeding, crop cultivation and crop information detection, and in particular relates to a method for quantitatively detecting the water retention capacity of plant leaves. Background technique [0002] Plant growth and development are often affected by various biotic and abiotic stresses, and drought is one of the most important abiotic stresses. The drought resistance of different plants is also different. In order to implement a reasonable irrigation system for crops with different drought resistance, the detection of plant drought resistance is very important. At the same time, looking for varieties that are more adaptable to the increasingly arid environment can effectively resist drought, increase the survival rate of plants, improve the ecological environment, and curb desertification, which is of great significance to promote the sustainable development of agriculture and the sim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N27/22
CPCG01N3/08G01N27/22G01N2203/0019
Inventor 邢德科束宇彭健李志祥李玉龙吴沿友陈晓乐
Owner JIANGSU UNIV
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