نتایج جستجو برای: salinity effect

تعداد نتایج: 1661418  

2016
Cumali Ozaslan Shahid Farooq Huseyin Onen Bekir Bukun Selcuk Ozcan Hikmet Gunal

Invasive plants are recognized for their impressive abilities to withstand adverse environmental conditions however, all invaders do not express the similar abilities. Therefore, survival, growth, nutrient uptake and fecundity of two co-occurring, invasive Physalis species were tested under water and salinity stresses, and different soil textures in the current study. Five different water stres...

2005
Kyung Dong Lee H. S. Han

This study was carried out to investigate the effects of plant growth promoting rhizobacteria (PGPR) on the antioxidant status, photosynthesis, mineral content and growth of lettuce (Lactuca sativa L.) under different soil salinity conditions. Increasing salinity in the soil decreased plant growth, photosynthesis, stomatal conductance, chlorophyll content, and mineral uptake compared to soil wi...

2010
F. Begum I. M. Ahmed A. Nessa W. Sultana

Effect of salinity on sprouting water uptake, ion uptake and metabolic efficiency of wheat seeds in the variety kanchan were studied in Jaydebpur. The treatments were 0, 4, 8, 12 and 16dS salinity level. The experiment was set in CRD with four replications. There were 50 seeds per petridish. Seeds were moistened with saline solution. Germination was recorded up to 72 hours with an interval of 1...

2008
Cheruth Abdul JALEEL Beemarao SANKAR Ramalingam SRIDHARAN Rajaram PANNEERSELVAM

The effect of salinity on growth, photosynthetic pigment content, and alkaloid secondary metabolite accumulation were studied in an economically important medicinal plant, Catharanthus roseus (L.) G. Don., under pot culture conditions. Plants were treated with different concentrations of NaCl, (e.g. 50 and 100 mM) 30, 45, 60, and 75 days after sowing (DAS). The plants were uprooted randomly 90 ...

Journal: :چغندرقند 0
محمدرضا جهاداکبر مربی مرکز تحقیقات کشاورزی و منابع طبیعی

in order to study the effect of irrigation water salinity on quality and quantity of sugar beet (beta vulgaris) at four growth stages, an experiment was conducted in rudasht salinity and drainage research center from 2004-2006. in this experiment, 11 different water salinity treatments and three sugar beet cultivars (ic, 7233 & 7233-p29*msc2) were considered using split plot design based on ran...

2006
Clyde Wilson Xuan Liu Scott M. Lesch Donald L. Suarez George E. Brown

In an effort to elucidate the physiological processes involved in cowpea differential growth response of four major USA cowpea cultivars (CB5, CB27, 8517 and 7964) to increasing salinity, we investigated the effect of salinity on leaf gas exchange of net photosynthetic rate per unit leaf mass (Pnm) and per unit leaf area (Pna), and stomatal conductance (gs) of the four cowpea cultivars. The exp...

2008
M. M. AZOOZ

The interactive effects of salinity stress (0.90 MPa NaCl) and seeds presoaking in 100 ppm. nicotinamide (vitamin PP) in three sorghum cultivars (Dorado, Hagen Shandawil and Giza 113) were studied to examine their response to salinity stress and the possible role played by vitamin PP in regulating saltinduced changes in seedling growth, protein patterns and some relevant metabolic activities of...

Journal: :General and comparative endocrinology 1996
S D McCormick

The potential roles of growth hormone (GH) and insulin-like growth factor I (IGF-I) in seawater (SW) acclimation of juvenile Atlantic salmon (Salmo salar) were examined. Compared to controls, fish in 12 ppt seawater given one or three injections (2-6 days) of GH (ovine, 0.2 microgram.g-1) or IGF-I (recombinant bovine, 0.05-0.2 microgram.g-1) had significantly greater salinity tolerance as judge...

Journal: :فصلنامه علمی اکوفیزیولوژی گیاهان زراعی 0

stevia rebaudiana bertoni is a medicinal, perennial and herbaceous plant from asteraceae family with sweet glycosides in its leaves. salinity stress is one of the important limiters in agricultural productions. salinity influences the growth and development of plant by effect on more activities in physiological and morphological characteristics. to study the effect of salinity on morphological ...

Journal: :پژوهش های زراعی ایران 0
حمید رضا خزاعی احمد نظامی بیژن سعادتیان امید آرمندپیشه

the study was conducted to evaluate the effect of seed priming on root growth of two barley cultivars (hordeum vulgare l.) under salinity stress was performed in phytogel. the treatments included two cultivars of barely (yusuf and maquie), levels of seed priming (control, hydro-priming and priming with 4.35 g l-1 of urea) and four levels of nacl salinity stress (0, 0.2, 0.3 m). the experiment w...

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