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A Method of Detecting Leaf Water Change Based on Initial Effective Ratio of Leaf Thickness

A technology of effective ratio and effective thickness, which is applied in the fields of water-saving irrigation and crop information detection, and can solve the problems of cumbersome operation and the influence of environmental factors

Active Publication Date: 2021-09-10
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test process is simple and fast, and the requirements for experimental conditions are low, so as to overcome the defects of cumbersome operation and great influence of environmental factors in the prior art

Method used

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  • A Method of Detecting Leaf Water Change Based on Initial Effective Ratio of Leaf Thickness
  • A Method of Detecting Leaf Water Change Based on Initial Effective Ratio of Leaf Thickness
  • A Method of Detecting Leaf Water Change Based on Initial Effective Ratio of Leaf Thickness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Select honeysuckle and ivy leaves with good growth and uniformity, and dry and dehydrate them after being saturated with water. The LCR instrument was used to measure the physiological capacitance, Blade water potential (see Table 1), calculate blade tension, and then calculate blade effective thickness (see Table 2).

[0083] Table 1 Physiological capacitance and leaf water potential of honeysuckle and ivy leaves under different clamping forces at each dehydration time

[0084]

[0085]

[0086] Table 2 Leaf tension and leaf effective thickness of honeysuckle and ivy leaves under different clamping forces at each dehydration time

[0087]

[0088] Using the gravity formula, Gibbs free energy expression and the relationship between blade tension and blade effective thickness, the relationship model between blade effective thickness and clamping force is deduced as Based on this, the mathematical models of the relationship between the effective leaf thickness...

Embodiment 2

[0101] Take Zhuge Cai and Rapeseed Rape as an example, all steps are the same as in Example 1. Table 7 shows the results of physiological capacitance and leaf water potential of Zhugecai and rapeseed leaves under different clamping forces at each dehydration moment, and table 8 shows the results of leaf tension and leaf effective thickness.

[0102] Table 7 Physiological capacitance and leaf water potential of Zhugecai and Rapeseed leaves under different clamping forces at each dehydration time

[0103]

[0104]

[0105] Table 8 Leaf tension and leaf effective thickness of Zhugecai and Rapeseed leaves under different clamping forces at each dehydration time

[0106]

[0107]

[0108] image 3 is the fitting curve of the relationship between the leaf effective thickness and the clamping force of Zhuge vegetable at each dehydration time, Figure 4 It is the fitting curve of the relationship between the effective leaf thickness and clamping force of rapeseed at each...

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Abstract

The invention discloses a method for detecting changes in leaf moisture based on initial effective ratio leaf thickness, and belongs to the field of crop information detection. The specific process of the method is as follows: measure the blade tension of the blade under different clamping forces at each dehydration time, calculate the effective thickness of the blade, construct the relationship model between the effective thickness of the blade and the clamping force, and obtain the blade tension at each dehydration time. Initial effective thickness; measure the dry weight of leaves, and calculate the initial effective ratio of leaf thickness; calculate the coefficient of variation of initial effective ratio of leaf thickness between each dehydration time, and compare the water changes of leaves of different plants under the condition of continuous dehydration. The invention has a simple and convenient measuring process, is not limited by the natural environment, has high result accuracy, and can quickly and comprehensively judge the drought resistance ability of plants.

Description

technical field [0001] The invention belongs to the technical field of water-saving irrigation and crop information detection, and specifically relates to a method for detecting changes in leaf water based on initial effective ratio leaf thickness. Background technique [0002] Drought is one of the abiotic stresses that plants often suffer during growth and development. Different plants have different drought resistance abilities. The drought resistance ability of plants is gradually formed through genetic variation and natural selection after long-term water stress. This ability to resist stress is closely related to the internal structure and physiological conditions of plants. Judging the drought resistance ability of plants is very important for implementing reasonable irrigation mechanisms for different plants. At the same time, screening out plant species with strong drought resistance and barrenness tolerance can increase vegetation coverage, maintain water and soil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01B7/06
CPCG01B7/08G01N33/0098
Inventor 邢德科陈晓乐吴沿友陈倩陈璐李振义谢津津李中英
Owner JIANGSU UNIV