نتایج جستجو برای: chlorophyll content index

تعداد نتایج: 807159  

Journal: :Remote Sensing 2012
Juthasinee Thanyapraneedkul Kanako Muramatsu Motomasa Daigo Shinobu Furumi Noriko Soyama Kenlo Nishida Nasahara Hiroyuki Muraoka Hibiki M. Noda Shin Nagai Takahisa Maeda Masayoshi Mano Yasuko Mizoguchi

To estimate global gross primary production (GPP), which is an important parameter for studies of vegetation productivity and the carbon cycle, satellite data are useful. In 2014, the Japan Aerospace Exploration Agency (JAXA) plans to launch the Global Change Observation Mission-Climate (GCOM-C) satellite carrying the second-generation global imager (SGLI). The data obtained will be used to est...

2002
Mark N. Merzlyak Alexei E. Solovchenko Anatoly A. Gitelson

Fruit reflectance spectra of five apple (Malus domestica Borkh.) cultivars (Zhigulevskoe, Antonovka, Granny Smith, Golden Delicious and Renet Simirenko) with a wide range of peel pigment (chlorophylls a and b , carotenoids and anthocyanins) content have been studied to develop non-destructive techniques for pigment assessment. In addition to chlorophylls, positions of in vivo absorption maxima ...

2011
Dan S. Long

Published in Agron. J. 103:1090–1099 (2011) Posted online 2 May 2011 doi:10.2134/agronj2010.0395 Copyright © 2011 by the American Society of Agronomy, 5585 Guilford Road, Madison, WI 53711. All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retri...

Journal: :به نژادی گیاهان زراعی و باغی 0
فرهاد کرمی دانشجوی دکتری گروه علوم باغبانی دانشکده کشاورزی دانشگاه بوعلی سینا، همدان منصور غلامی استاد گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا، همدان احمد ارشادی دانشیار گروه علوم باغبانی دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان عادل سی و سه مرده دانشیار گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه کردستان، سنندج

in this study, the winter cold tolerance of seven strawberry cultivars was evaluated using a rcbd design with a split plot arrangement at bu-ali sina university in 2014. after exposure of plants to low temperatures (+4, -5, -10, -15, -20 and -25oc), the values of electrolyte leakage, index of freeze injury, rwc, total chlorophyll and chlorophyll fluorescence parameters (f0, fm, fv and fv/fm) we...

2017
Kai Zhou Xinqiang Deng Xia Yao Yongchao Tian Weixing Cao Yan Zhu Susan L. Ustin Tao Cheng

Monitoring the components of crop canopies with remote sensing can help us understand the within-canopy variation in spectral properties and resolve the sources of uncertainties in the spectroscopic estimation of crop foliar chemistry. To date, the spectral properties of leaves and panicles in crop canopies and the shadow effects on their spectral variation remain poorly understood due to the i...

Interveinal chlorosis induced by iron deficiency is considered to be one of the problems in rose production in greenhouses all over the world. This experiment was conducted to elucidate the capability of chlorophyll fluorescence imaging technique to recognize early iron deficiency and also determination of relationship between leaf iron concentration and leaf chlorophyll content index and photo...

2016
Lunwen Qian Wei Qian Rod J. Snowdon

Local haplotype patterns surrounding densely spaced DNA markers with significant trait associations can reveal information on selective sweeps and genome diversity associated with important crop traits. Relationships between haplotype and phenotype diversity, coupled with analysis of gene content in conserved haplotype blocks, can provide insight into coselection for nonrelated traits. We perfo...

2014
Jing Zhang Wenjiang Huang Qifa Zhou

The in-chlorophyll centre waveband (ICCW) (640-680 nm) is the specific chlorophyll (Chl) absorption band, but the reflectance in this band has not been used as an optimal index for non-destructive determination of plant Chl content in recent decades. This study develops a new spectral index based solely on the ICCW for robust retrieval of leaf Chl content for the first time. A glasshouse experi...

Journal: :American journal of botany 2009
Anatoly A Gitelson Olga B Chivkunova Mark N Merzlyak

The anthocyanin and chlorophyll contents in leaves provide valuable information about the physiological status of plants. Thus, there is a need for accurate, efficient, and practical methodologies to estimate these biochemical parameters of vegetation. In this study, we tested the performance and accuracy of several nondestructive, reflectance-based techniques for estimating anthocyanin and chl...

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