Importance of phenological observations and predictions in agriculture
Mirjana Ruml,Todor Vulić +1 more
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TLDR
In this paper, two types of phenological models, physiologically-based and statistical, are proposed to predict the onset of different phenophases according to the air temperature, which can be applied to a wide range of species and climatic conditions.Abstract:
Phenology can contribute to many scientific disciplines from climate change, biodiversity, agriculture and forestry to human health. The knowledge of timing of phenological events and their variability can provide valuable data for planning, organizing and timely execution of certain standard and special (preventive and protective) agricultural activities that require advanced information on the dates of specific stages of crop development. Mathematical models are the basic tools to predict the timing of phenological events. There are two types of phenological models: physiologically-based and statistical. Most of the existing models are statistical and serve to predict the onset of different phenophases according to the air temperature. These models are site- and species-specific and cannot be applied to a wide range of species and climatic conditions.read more
Citations
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Tracking crop phenological development using multi-temporal polarimetric Radarsat-2 data
Francis Canisius,Jiali Shang,Jiangui Liu,Xiaodong Huang,Bao-Luo Ma,Xianfeng Jiao,Xiaoyuan Geng,John M. Kovacs,Dan Walters +8 more
TL;DR: In this paper, the authors investigated the sensitivity of Synthetic Aperture Radar (SAR) signatures to crop biophysical parameters or phenological stages, such as emergence, flowering, fruiting, maturing and senescence, for crop production surveillance and yield prediction.
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MODIS-derived EVI, NDVI and WDRVI time series to estimate phenological metrics in French deciduous forests
TL;DR: This research used as inputs 2001–2012 daily reflectance from MOD09GQ/MOD09GA products and 16-day composite VIs from the MOD13Q1 dataset to find the best VI/TS combination to estimate start- of-season (SOS) and end-of- season (EOS) dates across 50 temperate deciduous forests.
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Reconciling the discrepancy in ground- and satellite-observed trends in the spring phenology of winter wheat in China from 1993 to 2008
Li Guo,Ning An,Kaicun Wang +2 more
TL;DR: In this paper, the authors compared the spring phenology of winter wheat (Triticum sp), quantified as the timing of start of spring season (SOS), using 8'km resolution satellite data and ground observations at 112 agrometeorological stations across China from 1993 to 2008.
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Estimation of the base temperature and growth phase duration in terms of thermal time for four grapevine cultivars
TL;DR: Predictions of the beginning of ripening with the estimated temperature resulted in the lowest variation in real days when compared with predictions using Tb = 0 or 10 °C, regardless of the method that was used to estimate the Tb.
Journal ArticleDOI
Quantitative investigation of leaf photosynthetic pigments during annual biological cycle of Vitis vinifera L. table grape cultivars.
TL;DR: The chlorophyll (a and b) and carotenoid content and ratios in the leaves of four Vitis vinifera L table grape cultivars in the main phenophases of the annual biological cycle are investigated to contribute to a better understanding of foliar pigment dynamics and the timing of their decline.
References
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A model for estimating the completion of rest for 'Redhaven' and 'Elberta' peach trees
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