نتایج جستجو برای: severe drought class

تعداد نتایج: 747131  

Journal: :international journal of advanced biological and biomedical research 2014
navid adibifard farzad paknejad s.r. hassanpour avanji m. shojaei poor

the aim of this study was to investigate the effect  of irrigation period on the quality and quantity of yield and some morphological and physiological traits of three multigerm sugar beet genotypes named bp mashhad, bp karaj and 191. the experiment was in a split  plot  based on randomized complete block  design , carried out  at motahari research station of sugar beet seed research institute ...

Farzad Paknejad M. Shojaei Poor Navid Adibifard, S.R. Hassanpour Avanji,

The aim of this study was to investigate the effect  of irrigation period on the quality and quantity of yield and some morphological and physiological traits of three multigerm sugar beet genotypes named BP Mashhad, BP Karaj and 191. The experiment was in a split  plot  based on randomized complete block  design , carried out  at Motahari Research station of Sugar beet Seed Research Institute ...

Journal: :به زراعی کشاورزی 0
فرهاد عزیزی استادیار، موسسه تحقیقات اصلاح و تهیه نهال بذر، کرج - ایران علی ماهرخ کارشناس، موسسه تحقیقات اصلاح و تهیه نهال بذر، کرج - ایران

in order to comparison and determination of the best drought tolerance indices in sweet corn hybrids, an experiment was conducted using a randomized complete block design in split plot lay out with three replications at seed and plant improvement institute in karaj in 2006. three irrigation levels (irrigation after 75 as control, 100 and 125 millimeters cumulative evaporation from class a evapo...

سبزعلیان , محمدرضا, حاتمی, بیژن , خواجه علی, جهانگیر ,

Safflower having oil with high unsaturated fatty acids is a very valuable plant. However the sensitivity of safflower to some pests as safflower fly (Acanthiophilus helianthi), particularly in drought stress conditions has limited its production. In order to evaluate the effect of drought stress on population density and damage of important safflower pests, especially safflower fly, an experime...

ژورنال: علوم آب و خاک 2008
سبزعلیان , محمدرضا, حاتمی, بیژن , خواجه علی, جهانگیر ,

Safflower having oil with high unsaturated fatty acids is a very valuable plant. However the sensitivity of safflower to some pests as safflower fly (Acanthiophilus helianthi), particularly in drought stress conditions has limited its production. In order to evaluate the effect of drought stress on population density and damage of important safflower pests, especially safflower fly, an experime...

Farzad Paknejad M. Shojaei Poor Navid Adibifard, S.R. Hassanpour Avanji,

The aim of this study was to investigate the effect  of irrigation period on the quality and quantity of yield and some morphological and physiological traits of three multigerm sugar beet genotypes named BP Mashhad, BP Karaj and 191. The experiment was in a split  plot  based on randomized complete block  design , carried out  at Motahari Research station of Sugar beet Seed Research Institute ...

Azizi, Farhad, Kashani, Ali, Paknejad, Farzad, Seif, Fereshteh, Shahabifar, Mehdi,

Present study was carried out to evaluate the effects of drought stress and clinoptilolite on the yield and forage quality of silage corn hybrids. The experiment was arranged in a three-replicated split-spilt plot based on randomized complete blocks design (RCBD) with three irrigation regimes including optimum irrigation, moderate and severe drought stress (irrigation after 70, 100 and 130 mm e...

Journal: :Acta biochimica Polonica 2016
Aleksandra Swida-Barteczka Katarzyna Kruszka Aleksandra Grabowska Andrzej Pacak Artur Jarmolowski Marzena Kurowska Iwona Szarejko Zofia Szweykowska-Kulinska

MicroRNAs are short molecules of 21-24 nt in length. They are present in all eukaryotic organisms and regulate gene expression by guiding posttranscriptional silencing of mRNAs. In plants, they are key players in signal transduction, growth and development, and in response to abiotic and biotic stresses. Barley (Hordeum vulgare) is an economically important monocotyledonous crop plant. Drought ...

In this study the effects of drought stress on proline, protein, chlorophyll a/b, ascorbate and dehrydroascorbate were investigated in Akri and Mobil cultivars of tomato species. The seeds were cultured at 23 °C with 15-16 hours light period and irrigation was done based on field capacity control (FC), mild drought stress (⅔ FC) and severe drought stress (⅓ FC) under greenhouse conditions. Afte...

2005
Konstantinos M. Andreadis Elizabeth A. Clark Andrew W. Wood Alan F. Hamlet Dennis P. Lettenmaier

Droughts can be characterized by their severity, frequency and duration, and areal extent. Depth-area-duration analysis, widely used to characterize precipitation extremes, provides a basis for evaluation of drought severity when storm depth is replaced by an appropriate measure of drought severity. We used gridded precipitation and temperature data to force a physically-based macroscale hydrol...

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