نتایج جستجو برای: phenological growth stage

تعداد نتایج: 1142508  

Journal: :International journal of biometeorology 2006
Jared L Deforest Asko Noormets Steve G McNulty Ge Sun Gwen Tenney Jiquan Chen

Soil respiration (SR) represents a major component of forest ecosystem respiration and is influenced seasonally by environmental factors such as temperature, soil moisture, root respiration, and litter fall. Changes in these environmental factors correspond with shifts in plant phenology. In this study, we examined the relationship between canopy phenophases (pre-growth, growth, pre-dormancy, a...

Journal: :Agriculture 2022

Fruit of Cornelian cherry can be used fresh or processed, and cultivation practices are developing in this direction. Due to the rarity its cultivation, is harvested from natural sites occurrence. However, fruit lower quality than cultivars, as their seedlings differ terms ripening. The objective experiment was evaluation approximately a dozen cultivars growth yield under conditions Central Eur...

2012
Gonzalo A. R. Molina Eduardo V. Trumper

Different biological parameters of the stink bugs, Nezara viridula L. and Piezodorus guildinii Westwood (Hemiptera: Pentatomidae), are affected by the developmental stage of the soybean (Glycine max Merrill) pods they feed on. These effects of the soybean on the stink bugs could represent a selection pressure leading to the ability of these species to discriminate the phenological stage of soyb...

2008
Glenn E. Shewmaker H. F. Mayland R. C. Rosenau K. H. Asay GLENN E. SHEWMAKER

Silicon in forage reduces dry matter digestibility and may reduce grazing preference. Two studies were conducted with the following objectives: (1) to evaluate a method of determining grazing preference, and (2) to characterize the distribution and solubility of silicon in 31 accessions of C-3 grasses and relate these traits to grazing preference and estimated forage digestibility. Forage sampl...

Journal: :Remote Sensing 2013
Cornelius Senf Dirk Pflugmacher Sebastian van der Linden Patrick Hostert

We developed and evaluated a new approach for mapping rubber plantations and natural forests in one of Southeast Asia’s biodiversity hot spots, Xishuangbanna in China. We used a one-year annual time series of Moderate Resolution Imaging Spectroradiometer (MODIS), Enhanced Vegetation Index (EVI) and short-wave infrared (SWIR) reflectance data to develop phenological metrics. These phenological m...

2017
Shuyuan Liu Xiangnan Liu Meiling Liu Ling Wu Chao Ding Zhi Huang

An effective method to monitor heavy metal stress in crops is of critical importance to assure agricultural production and food security. Phenology, as a sensitive indicator of environmental change, can respond to heavy metal stress in crops and remote sensing is an effective method to detect plant phenological changes. This study focused on identifying the rice phenological differences under v...

2011
Kristin Böttcher Mikko Kervinen Mika Aurela Olli-Pekka Mattila Tiina Markkanen Jouni Pulliainen

The possibility for the extraction of spring phenological events of boreal evergreen forest from Moderate Resolution Imaging Spectrometer (MODIS) time-series was evaluated in this study. The beginning of the photosynthetically active period, determined from CO2 fluxes measured with the eddy covariance method, was used as primary reference for the onset of growing season (hereafter referred to a...

A Sonboli M Yousefzadi P Salehi S Nejad Ebrahimi

The objective of this study was the isolation and identificaion of essential oil constituents of Salvia sahendica. The antimicrobial activity of the essential oil was also investigated. The aerial parts of the plant were collected in different phenological stages in 2004 from Sahand Mountain (East Azerbayjan Province, Tabriz). The essential oil of S. sahendica was isolated by hydro-distillation...

Journal: :Evolutionary applications 2015
Frazer H Sinclair Graham N Stone James A Nicholls Stephen Cavers Melanie Gibbs Philip Butterill Stefanie Wagner Alexis Ducousso Sophie Gerber Rémy J Petit Antoine Kremer Karsten Schönrogge

Disruption of species interactions is a key issue in climate change biology. Interactions involving forest trees may be particularly vulnerable due to evolutionary rate limitations imposed by long generation times. One mitigation strategy for such impacts is Climate matching - the augmentation of local native tree populations by input from nonlocal populations currently experiencing predicted f...

Journal: :Ethnobotany Research and Applications 2023

Background: This study determined the results of introduction Ferula tadshikorum, and comparatively studied content proteins polysaccharides in leaves roots three age individuals. Methods: The work used phenological, protein polysaccharide chemical analyses, as well a survey on use tadshikorum among local residents Surkhandarya region Uzbekistan. Results: Under conditions introduction, phenolog...

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