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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40101 - Agriculture

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Horticultural Science

ISSN

0862-867X

e-ISSN

1805-9333

Svazek periodika

51

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

127-140

Kód UT WoS článku

001259751800005

EID výsledku v databázi Scopus

—