نتایج جستجو برای: salinity stress

تعداد نتایج: 457285  

2017
Avinash Mishra Bhakti Tanna

Halophytes have demonstrated their capability to thrive under extremely saline conditions and thus considered as one of the best germplasm for saline agriculture. Salinity is a worldwide problem, and the salt-affected areas are increasing day-by-day because of scanty rainfall, poor irrigation system, salt ingression, water contamination, and other environmental factors. The salinity stress tole...

Salinity stress is one of the major abiotic stresses in arid and semi-arid regions of the world, such as Iran. High genetic diversity for salinity tolerance has been observed in Iranian bread wheat genotypes. In order to analyze genetic diversity and determine the most effective characteristics on salinity tolerance, 110 bread wheat genotypes were evaluated in two conditions (non-stress and sal...

2017
Syed Haleem Shah Rasmus Houborg Matthew F. McCabe Peter Langridge

Abiotic stress can alter key physiological constituents and functions in green plants. Improving the capacity to monitor this response in a non-destructive manner is of considerable interest, as it would offer a direct means of initiating timely corrective action. Given the vital role that plant pigments play in the photosynthetic process and general plant physiological condition, their accurat...

2006
Patrick D. Biber

The mangrove habitat exhibits many unique physical features, one of the most important of which is a salinity gradient. Photosynthetic rates, as measured by leaf stomatal conductance and leaf chlorophyll fluorescence induction, were tested as indicators of salinity stress in seedlings of the red mangrove, Rhizophora mangle, grown under five different salinity levels: 0, 15, 30, 45, and 60 parts...

Journal: :چغندرقند 0
کیوان فتوحی عضو هیئت علمی مرکز تحقیقات کشاورزی استان آذربایجان غربی

in order to evaluate salinity tolerance in 20 sugar bee genotypes, an experiment was conducted in two fields with salinity (ec= 12 ds/m, ph= 7.6) and non-salinity stress, in the form of rcbd at miandoab agricultural research station. different morphological and physiological traits such as root yield, sugar percentage, white sugar percentage, molasses, n, na, k, syrup purity and green cover per...

Journal: :journal of ornamental plants 2015
a. lolaei

the effects of salinity and supplied calcium chloride on growth and leaf ions concentration of tomato (lycopersicon esculentum l.) were investigated in gorgan, iran. a factorial experiment was conducted based on rcbd with four nacl levels (0, 50, 100, and 150 mm) and four cacl2 levels (0, 100, 200 and 300 mg l-1). data of growth, yield and leaf’s ca, k, and na content were subjected to analyze ...

Sunflower oilseeds (Helianthus annuus L.) are widely used around the world. Soil salinity negatively affects many morphological and physiological traits of sunflowers. Oil seed sunflower line tolerant to salinity stress (AS5305) was planted in normal and salinity stress conditions in a completely randomized design with two biological replications in a controlled environment. Salinity was applie...

Journal: :international journal of advanced biological and biomedical research 2013
ali salehi sardoei mostafa nik zad morteza sabaee fazel behnam azizi gerdeh mostafa shahvardi

the response of tomato genotype cal-ji  against five salinity levels (distilled water as control, 25, 50, 75 and 100 mm) were studied at germination and early seedling stages. an experiment with conducted by using a completely randomized design (crd) with three replications. shoot and root length, shoot and root fresh weight, seed vigor, mean germination time, germination percentage and rate me...

Journal: :desert 2012
a roustaee m karimpour reyhan m jafari

charcoal rot diseases of melon caused by macrophomina phaseolina is one of the most important diseases of melon occurring in regions with variable climate. reduction of yield of melon by this disease has been reported up to 100% in some of garmsar field. salinity which can cause the important trouble in plant metabolism and nutrition is present in semnan and garmsar areas. melon is susceptible ...

Journal: :تولید گیاهان زراعی 0
جعفر نباتی شرکت فناوران بذر یکتا محمد کافی دانشگاه فردوسی مشهد سعید خانی‌نژاد دانشگاه فردوسی مشهد علی معصومی دانشگاه پیام نور محمد زارع مهرجردی موسسه آموزش عالی شیروان احسان کشمیری دانشگاه فردوسی مشهد

background and objectives: infunction of the photosynthetic apparatus of halophytes plays an important role in their salinity tolerance. kochia as a halophyte, is of high ability in biomass production in salinity stress conditions. thus study photosynthesis and the related factors salinity stress can provide appropriate physiological view for better understanding of the plant mechanisms of in s...

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