scholarly journals Chlorophyll Fluorescence and Yield Responses of Winter Wheat to Waterlogging at Different Growth Stages

2015 ◽  
Vol 18 (3) ◽  
pp. 284-294 ◽  
Author(s):  
Xiaoli Wu ◽  
Yonglu Tang ◽  
Chaosu Li ◽  
Chun Wu ◽  
Gang Huang
Keyword(s):  
Chlorophyll Fluorescence ◽  
Winter Wheat ◽  
Growth Stages ◽  
Yield Responses ◽  
Different Growth Stages

scholarly journals The Modification of Difference Vegetation Index (DVI) in middle and late growing period of winter wheat and its application in soil moisture inversion

2019 ◽  
Vol 131 ◽  
pp. 01098
Author(s):  
Zhang Hong-wei ◽  
Huai-liang Chen ◽  
Fei-na Zha
Keyword(s):  
Soil Moisture ◽  
Winter Wheat ◽  
Vegetation Index ◽  
Vegetation Coverage ◽  
Growth Stages ◽  
Wheat Growth ◽  
Inversion Result ◽  
Growing Period ◽  
The Difference ◽  
Different Growth Stages

In the middle and late growing period of winter wheat, soil moisture is easily affected by saturation when using MODIS data to retrieve soil moisture. In this paper, in order to reduce the effect of the saturation caused by increasing vegetation coverage in middle and late stage of winter wheat, the Difference Vegetation Index (DVI) model was modified with different coefficients in different growth stages of winter wheat based on MODIS spectral data and LAI characteristics of variation. LAI was divided into three stages, LAI ≤ 1 < LAI ≤, 3 < LAI, and the adjusting coefficient of α=1, α=3, α=5, were taken to modifying the Difference Vegetation Index(DVI). The results show that the Modified Difference Vegetation Index (MDVIα) can effectively reduce the interference of saturation, and the inversion result of soil moisture in the middle and late period of winter wheat growth is obviously superior to the uncorrected inversion model of DVI.

Winter wheat LAI inversion considering morphological characteristics at different growth stages coupled with microwave scattering model and canopy simulation model

2020 ◽  
Vol 240 ◽  
pp. 111681
Author(s):  
Shangrong Wu ◽  
Peng Yang ◽  
Jianqiang Ren ◽  
Zhongxin Chen ◽  
Changan Liu ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Simulation Model ◽  
Morphological Characteristics ◽  
Growth Stages ◽  
Microwave Scattering ◽  
Scattering Model ◽  
Different Growth Stages

Evaluating hyperspectral vegetation indices for estimating nitrogen concentration of winter wheat at different growth stages

2010 ◽  
Vol 11 (4) ◽  
pp. 335-357 ◽  
Author(s):  
Fei Li ◽  
Yuxin Miao ◽  
Simon D. Hennig ◽  
Martin L. Gnyp ◽  
Xinping Chen ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Nitrogen Concentration ◽  
Vegetation Indices ◽  
Growth Stages ◽  
Different Growth Stages

scholarly journals Evaluating Hyperspectral Vegetation Indices for Estimating Nitrogen Concentration of Winter Wheat in Different Growth Stages

2020 ◽  
Vol 7 (3) ◽  
pp. 325-334
Author(s):  
Metin AYDOĞDU ◽  
Hakan YILDIZ ◽  
Ediz ÜNAL ◽  
Seda KÜLEN
Keyword(s):  
Winter Wheat ◽  
Nitrogen Concentration ◽  
Vegetation Indices ◽  
Growth Stages ◽  
Different Growth Stages

scholarly journals Estimation of winter wheat leaf area index at different growth stages using optimized red-edge hyperspectral vegetation indices

2020 ◽  
Vol 509 ◽  
pp. 012027
Author(s):  
Naichen Xing ◽  
Wenjiang Huang ◽  
Yingying Dong ◽  
Huichun Ye ◽  
Stefano Pignatti ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Vegetation Indices ◽  
Growth Stages ◽  
Area Index ◽  
Red Edge ◽  
Wheat Leaf ◽  
Different Growth Stages

Effects of seeding rate and root pruning at different growth stages on spatiotemporal root distribution,soil water use and grain yield of winter wheat in Loess Plateau

2015 ◽  
Vol 35 (6) ◽  
Author(s):  
方燕 FANG Yan ◽  
徐炳成 XU Bingcheng ◽  
谷艳杰 GU Yanjie ◽  
刘倩倩 LIU Qianqian ◽  
李凤民 LI Feng-min
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Soil Water ◽  
Water Use ◽  
Loess Plateau ◽  
Root Distribution ◽  
Growth Stages ◽  
Root Pruning ◽  
Seeding Rate ◽  
Different Growth Stages

Trend analysis of effective precipitation in different growth stages of winter wheat in Huaihe River Plain

2019 ◽  
Vol 138 (3-4) ◽  
pp. 2043-2056 ◽  
Author(s):  
Hanjiang Nie ◽  
Tianling Qin ◽  
Chuanzhe Li ◽  
Yang Tang ◽  
Baisha Weng ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Trend Analysis ◽  
Growth Stages ◽  
Huaihe River ◽  
Effective Precipitation ◽  
River Plain ◽  
Different Growth Stages
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