نتایج جستجو برای: phenological phases
تعداد نتایج: 112694 فیلتر نتایج به سال:
Climate change is expected to increase temperature and decrease summer precipitation in Central Europe. Little is known about how warming and drought will affect phenological patterns of oaks, which are considered to possess excellent adaptability to these climatic changes. Here, we investigated bud burst and intra-annual shoot growth of Quercus robur, Q. petraea and Q. pubescens grown on two d...
Existing evidence of plant phenological change to temperature increase demonstrates that the phenological responsiveness is greater at warmer locations and in early-season plant species. Explanations of these findings are scarce and not settled. Some studies suggest considering phenology as one functional trait within a plant's life history strategy. In this study, we adapt an existing phenolog...
Females of woody dioecious species usually devote more resources to reproduction than males. This may lead to a decrease in female survival and growth. The costs of reproduction, however, can be lightened through a number of mechanisms, as for example avoiding the temporal coincidence of reproduction and vegetative growth. The aim of this study was to evaluate whether males and females of P. le...
The reproductive phenology in plants consists of successive life cycle phases leading to success. In seed plants, cycads and other dioecious groups have complex systems, where individuals require synchronizations among two sexes populations the same species. Here, we analyzed between three geographically close species cycad genus Ceratozamia Brongn. We described lifespan pollen ovulate strobili...
Accurate estimation and monitoring of rice phenology is necessary for the management and yield prediction of rice. The radar backscattering coefficient, one of the most direct and accessible parameters has been proved to be capable of retrieving rice growth parameters. This paper aims to investigate the possibility of monitoring the rice phenology (i.e., transplanting, vegetative, reproductive,...
Phenological research of plant species is great importance in the context adaptation to climate change and changing environmental factors, especially dynamic urban environments, such as area Sarajevo. This aims determine trends phenological pattern hybrid plane trees Sarajevo so that recommendations can be made for use greening suburban areas since they largely depend on microclimatic condition...
A growing number of studies have highlighted the consequences climate change on agriculture, including impacts extremes such as drought, heat waves and frost. The aim this study was to assess influence temperature various phenological events grapevine varieties in Southwest Switzerland (Leytron, Canton Valais). We aimed capture occurrence extreme specific years at different phases rank based th...
BACKGROUND AND AIMS Herbaceous-shrubby communities in the Gran Sabana (Great Savanna) Plateau of Venezuela grow under non-zonal conditions. We speculated that this would produce specific patterns of reproductive phenology within these different soil-climate-vegetation associations. Specifically, we tested the hypothesis that the reproductive phenology patterns of four herbaceous-shrubby communi...
a r t i c l e i n f o Keywords: Digital camera Vegetation phenology RGB Green excess index Green-up date Temperature sensitivity Japan Vegetation phenology such as the onset of green-up and senescence is strongly controlled by climate and other environmental factors, and in turn affects the terrestrial carbon balance. Therefore, phenological observation is important as an indicator of global wa...
The crop coefficient (Kc) is widely used for operational estimation of actual evapotranspiration (ETa) and crop water requirements. The standard method for obtaining Kc is via a lookup table from FAO-56 (Food and Agriculture Organization of the United Nations Irrigation and Drainage Paper No. 56), which broadly treats Kc as a function of four crop-growing stages. However, the distinctive physio...
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