Changes in growth and leaf hyperspectral reflectance of zoysiagrass ( Zoysia japonica Steud.) under various soil compaction intensities

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F24%3A43908928" target="_blank" >RIV/60076658:12220/24:43908928 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.17221/173/2022-HORTSCI" target="_blank" >https://doi.org/10.17221/173/2022-HORTSCI</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/173/2022-HORTSCI" target="_blank" >10.17221/173/2022-HORTSCI</a>

Result language

angličtina

Original language name

Changes in growth and leaf hyperspectral reflectance of zoysiagrass ( Zoysia japonica Steud.) under various soil compaction intensities

Original language description

This study was conducted to determine the effect of traffic stress by soil compaction on zoysiagrass by analyzing the aerial and underground parts and hyperspectral analysis. Zoysiagrass plants were subjected to a compaction strength gradient from 35 to 80 kgf/cm 2 to confirm the compaction resistance and recoverable limit and measure the physiological change during stress. Changes in leaf color, photosynthesis, and hyperspectral reflectance due to continuous weak and strong traffic stress were measured, and vegetation indices were evaluated for the critical traffic stress injury assessment. As a result, the stem of the zoysiagrass was severely damaged up to 70 kgf/cm 2 based on soil hardness. The recoverable limit strength of soil compaction was 55 kgf/cm 2 under weak response pressure conditions. Collectively, our results show that the damage of weak compaction strength on the zoysiagrass was quickly recovered after the stop of traffic stress, especially since the growth of the underground part was increased by weak traffic stress. However, if the compaction strength above 65 kgf/cm 2 lasted for a long time, the growth of the underground part is limited by lowering the energy supply for the recovery occurred, in turn, the recovery occurred slowly after the compaction was stopped. Among the vegetation indices obtained from hyperspectral data, pigment specific simple ratio for chlorophyll a (PSSRa), pigment specific simple ratio for chlorophyll b (PSSRb), and pigment specific simple ratio for carotenoids (PSSRc) were effective in evaluating the damage of traffic stress.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40101 - Agriculture

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Horticultural Science

ISSN

0862-867X

e-ISSN

1805-9333

Volume of the periodical

51

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

14

Pages from-to

127-140

UT code for WoS article

001259751800005

EID of the result in the Scopus database

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