Assessment of rice leaf chlorophyll content using visible bands at different growth stages at both the leaf and canopy scale

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F14%3A64751" target="_blank" >RIV/60460709:41210/14:64751 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of rice leaf chlorophyll content using visible bands at different growth stages at both the leaf and canopy scale

Popis výsledku v původním jazyce

Nitrogen is an important variable for paddy farming managemetn. The objectives of this study were to develop and test a newmethod to determine the status of nitrogen and chlorophyll content in rice leaf by analysing and considering all visible bands derived from images captured using a conventional digital camera. The images from the 6-pannel leaf colour chart wereacquired using Basler Scout scAT40-70fc under light-emitting diode lighting, in which principal component analysis was used to retain the lower order principal component to develop a new index.Digital photographs of the upper most collared leaf of indices and IPCA through six grouwth stages. Aso a conventional digital camera mounted to an unmanned aerial vehicle was used to acquire images over the rice canopy for the purpose of verification. The reult indicated that the conventional digital camera at the both leaf (r= -0.81) and the canopy (r=0.78) scale growth stages. This indicates that conventional low-cost digital cameras

Název v anglickém jazyce

Assessment of rice leaf chlorophyll content using visible bands at different growth stages at both the leaf and canopy scale

Popis výsledku anglicky

Nitrogen is an important variable for paddy farming managemetn. The objectives of this study were to develop and test a newmethod to determine the status of nitrogen and chlorophyll content in rice leaf by analysing and considering all visible bands derived from images captured using a conventional digital camera. The images from the 6-pannel leaf colour chart wereacquired using Basler Scout scAT40-70fc under light-emitting diode lighting, in which principal component analysis was used to retain the lower order principal component to develop a new index.Digital photographs of the upper most collared leaf of indices and IPCA through six grouwth stages. Aso a conventional digital camera mounted to an unmanned aerial vehicle was used to acquire images over the rice canopy for the purpose of verification. The reult indicated that the conventional digital camera at the both leaf (r= -0.81) and the canopy (r=0.78) scale growth stages. This indicates that conventional low-cost digital cameras

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

International Journal of Applied Earth Observation and Geoinformation

ISSN

0303-2434

e-ISSN

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Svazek periodika

32

Číslo periodika v rámci svazku

N

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

35-45

Kód UT WoS článku

000337884100003

EID výsledku v databázi Scopus

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