نتایج جستجو برای: high leaf k /na ratio and low leaf sodium

تعداد نتایج: 17500468  

Journal: :علوم گیاهان زراعی ایران 0
مریم شهبازی مهدی کلاته عربی علی محمد حسنی فر

salinity problem is continuously increasing in the arid and semi-arid regions of iran. to effectively utilize germplasm resources in breeding, it is necessary to characterize and evaluate genotypes for the desirable traits and as well for salinity tolerance. salinity tolerance of 80 wheat landraces from different parts of iran was studied in two steps. at first, the degree of salnity tolerance ...

Asna Ashari, M., Bolandnazar, S., Khoshgoftarmanesh, A. H., Mirzapour, M. H., Naeini, M. R.,

In order to study the effect of zinc (Zn) nutrition on relative tolerance of olive (Olea europea L.) seedlings to salinity, a factorial pot experiment was conducted, based on completely randomized design with three replications, during fall 2013. One-year seedlings of two olive cultivars (‘Frontoio’ and ‘Conservolea’) were planted in 10-litre plastic pots containing sand and perlite (1:1 ratio)...

Journal: :علوم گیاهان زراعی ایران 0
افراسیاب راهنما قهفرخی کاظم پوستینی رضا توکل افشاری علی احمدی هوشنگ علیزاده

a study of physiological responses of different wheat cultivars to saline conditions can lead to an identification of the main mechanisms in salt tolerance. seven bread wheat cultivars differing in salt tolerance with varying ability of sodium accumulation in their different tissues were employed to assess ion distribution and sodium accumulation under saline conditions. ion distribution and na...

Soil salinity and water deficit are major problems for development of agricultural production. In this study, effects of growth promoting microorganisms (inoculation with Piriformospora indica and two isolates of Streptomyces sp.) on the leaf yield and absorption rate of some elements in leaves and roots of stevia plant was investigated under salinity conditions for two consecutive years (2016-...

Journal: :تنش های محیطی در علوم زراعی 0
محمد عظیمی گندمانی دانشجوی کارشناسی ارشد دانشگاه یاسوج هوشنگ فرجی گروه زراعت واصلاح نباتات دانشگاه یاسوج اشکبوس دهداری گروه زراعت واصلاح نباتات دانشگاه یاسوج محسن موحدی دهنوی گروه زراعت واصلاح نباتات دانشگاه یاسوج مصطفی علی نقی زاده گروه زراعت واصلاح نباتات دانشگاه یاسوج

dry land salinity is one of the major problems affecting agricultural products. the main consequences of plant exposure to salt stress are water deficit and ion excess, which lead to several morphological and physiological changes. in order to evaluate the effect of salinity on some physiological characteristics of 8 spring rapeseed cultivars, an experiment was conducted in the greenhouse at ya...

Journal: :journal of agricultural science and technology 0
m. arghavani department of horticulture, faculty of agriculture, university of zanjan, zanjan, p. o. box: 313-45195, islamic republic of iran. a. zaeimzadeh department of horticulture, faculty of agriculture, university of zanjan, zanjan, p. o. box: 313-45195, islamic republic of iran. s. savadkoohi department of horticulture, faculty of agriculture, university of zanjan, zanjan, p. o. box: 313-45195, islamic republic of iran. l. samiei department of ornamental plants, research center for plant sciences, ferdowsi university of mashhad, mashhad, islamic republic of iran.

in most semiarid and arid areas, fresh water shortage compels managers to use low quality water sources with high salinity to irrigate turf and landscape. recent research has noticed that management of nitrogen fertilization can alleviate salinity effects on plants. this greenhouse sand culture experiment was conducted in order to investigate morphological and physiological responses to salinit...

The effects of salinity and complementary silicon on some morphological traits of canola, cv. Talaiie, an experiment was done in greenhouse. Treatments were four levels of potassium silicate (0, 1, 2 and 3mM) and four levels of chloride sodium (0, 0.3, 0.6 and 0.9 g/kg soil). In normal condition application of silicon had not a significant effect on measured traits. Salinity decreased leaf area...

J.T. Tsialtas, N. Maslaris T. Matsi

  In a three-year (2004-2006), field experiment, we aimed to study changes in leaf physiological traits (leaf water potential-Ψleaf, leaf water content-LWC, carbon isotope discrimination-Δ, specific leaf area-SLA, chlorophyll content as assessed by SPAD and modified SPAD-MSPAD) and elemental composition (K, Na, Ca, Mg, K/Na, Ca/Mg, total leaf salinity-TLS) of sugar beets (cv. Rizor) grown unde...

Journal: :به زراعی کشاورزی 0
محسن سیلسپور دانشجوی دکتری شیمی و حاصلخیزی خاک، گروه علوم خاک، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران احمد گلچین استاد گروه علوم خاک، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران محمود رضا روزبان استادیار گروه باغبانی، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران.

a greengouse experiment was conducted to evaluation of salinity stress on growth parameters of two olive cultivars during 2013-2014 at agricultural and natural resources research center of tehran. in the experiment, effects of five levels of irrigation water salinity including 0, 4, 8, 12 and 16 ds.m-1 were evaluated on ʻzardʼ and ʻmissionʼ olive cultivars under soilless culture. data showed th...

روحی, وحید, محمدخانی, عبدالرحمان, محمودی, صدیقه,

Aloe vera is one of the medicinal plants, resistant to drought and high temperatures, that its gel has many applications in pharmaceutical, health and food industry. This experiment was conducted to determine the effects of salinity stress, caused by sodium chloride (NaCl) and calcium chloride (CaCl2), on leaf weight, gel content and ratio of some nutrients in Aloe vera, in Research G...

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