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Method for comprehensively determining water absorption and utilization by plants

A technology of plant absorption and comprehensive judgment, which is applied in the field of detection of plant water absorption and utilization, can solve the problems of reduced WUE of photosynthetic plants, unfavorable stable survival of plants, etc., and achieves the effect of simple operation.

Active Publication Date: 2019-06-07
GUIZHOU SERICULTURE RES INST GUIZHOU PEPPER RES INST +1
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  • Abstract
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Problems solved by technology

It cannot be neglected that when plant transpiration is too strong and photosynthesis is weak, the WUE of plants will decrease, which is not conducive to the long-term stable survival of plants.

Method used

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  • Method for comprehensively determining water absorption and utilization by plants
  • Method for comprehensively determining water absorption and utilization by plants
  • Method for comprehensively determining water absorption and utilization by plants

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Embodiment Construction

[0023] Below with judging that the inoculation of arbuscular mycorrhizal fungus can promote mulberry water absorption and utilization as concrete embodiment, and in conjunction with accompanying drawing accompanying drawing, the present invention is further described; Its steps are as follows:

[0024] 1) Put the sterilized soil into three plastic buckets respectively, ensuring that the soil depth reaches 2 / 3 of the height of the plastic bucket;

[0025] 2) Select three mulberry seedlings with the same growth, dip the root system of one mulberry seedling evenly with Funneliformis mosseae (Fm) bacterial agent, and dip the root system of the other mulberry seedling evenly with the inner root growth of the root. Rhizophagus intraradices (Ri) fungal agent, the root system of the third group of mulberry seedlings is evenly dipped in the sterilized fungicide;

[0026] 3) The three mulberry seedlings were transplanted into plastic buckets respectively, and the remaining moses peduncl...

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Abstract

The invention, which belongs to the field of the detection method for plant water absorption and utilization, discloses a method for comprehensively determining the water absorption and utilization byplants. The method comprises the following steps: drying plant leaves and grinding the dried leaves; measuring carbon and oxygen isotope fractionation coefficients respectively; calculating carbon and oxygen stable isotope ratios of the leaves; establishing a leaf carbon and oxygen stable isotope ratio relationship model: delta<18>O=mdelta<13>C+n; and carrying out comparison based on a formula WUE=Ca[b-(detla<13>Ca-delta<13>Cp) / (1+delta<13>Cp / 1000)] / [1.6(b-a)] to determine a plane water absorption and utilization situation. According to the invention, the water absorption and water utilization situations of plants within the certain period of time can be determined rapidly and accurately during the plant growth process and the plants are protected from being damaged. The disclosed methodis a comprehensive method for characterizing the water absorption and utilization of plants.

Description

technical field [0001] The invention relates to a detection method for plant water absorption and utilization, in particular to a comprehensive method for characterizing plant water absorption and utilization. Background technique [0002] Soil moisture deficit will directly threaten the nutrient absorption and growth and development of plants. In recent decades, due to the reduction of precipitation and soil moisture in many areas, water has become the main factor limiting the survival and ecological adaptability of plants in desert areas; An important prerequisite for vegetation restoration and reconstruction. [0003] Plant roots absorb water along the direction of water potential gradient drop between soil and root xylem. At present, the hydraulic conductivity of the root system is commonly used to characterize the water absorption capacity of the plant root system. However, since this method needs to dig out the roots of the plant and cause damage to the plant, it is ...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01N27/62
Inventor 邢丹贾彦龙韩世玉蓬桂华王永平付文婷
Owner GUIZHOU SERICULTURE RES INST GUIZHOU PEPPER RES INST
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