نتایج جستجو برای: root and leaf

تعداد نتایج: 16862427  

2013
Peter Hajek Dietrich Hertel Christoph Leuschner

Leaf and fine root morphology and physiology have been found to vary considerably among tree species, but not much is known about intraspecific variation in root traits and their relatedness to leaf traits. Various aspen progenies (Populus tremula and P. tremuloides) with different growth performance are used in short-rotation forestry. Hence, a better understanding of the link between root tra...

Journal: :تحقیقات آب و خاک ایران 0
مهدی قیصری استادیار گروه مهندسی آب دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران محمد مهدی مجیدی دانشیار گروه مهندسی زراعت و اصلاح نباتات دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران محمد جواد زارعیان دانشجوی دکتری آبیاری و زهکشی دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران سید مجید میرلطیفی دانشیار گروه آبیاری و زهکشی دانشکدة کشاورزی دانشگاه تربیت مدرس، تهران ـ ایران حمزه دوکوهکی دانشجوی سابق ارشد آبیاری و زهکشی دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران سمیه امیری دانشجوی سابق کارشناسی مهندسی آب دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران

this study was conducted to investigate the effects of applying deficit irrigation on aboveground biomass, leaf area and root biomass for maize hybrid 704 single-cross. experimental treatments included 4 different irrigation levels, 5 growth stages with three replicates in a completely randomized factorial statistical design. aboveground biomass, leaf area and root biomass in 4 longitudinal sec...

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...

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)...

سرخی لله لو, فرشاد, جوانشیر, عزیز , دباغ محمدی نسب, عادل ,

A pot experiment was designed to investigate the effects of full, above and below ground interactions of wheat with wild oat on leaf characteristics and root to shoot ratio. This experiment was conducted as a factorial based on randomized complete design with four replications. The treatments included four interference levels (above ground, below ground, above and below ground and check wheat a...

ژورنال: علوم آب و خاک 2008
سرخی لله لو, فرشاد, جوانشیر, عزیز , دباغ محمدی نسب, عادل ,

A pot experiment was designed to investigate the effects of full, above and below ground interactions of wheat with wild oat on leaf characteristics and root to shoot ratio. This experiment was conducted as a factorial based on randomized complete design with four replications. The treatments included four interference levels (above ground, below ground, above and below ground and check wheat a...

Considering the effect of salinity stress on the quantitative and qualitative traits of sugar beet genotypes, it seems necessary to study the response of genotypes obtained from breeding programs to salinity stress. For this purpose, 17 full-sib genotypes (derived from sibling crossing) with 7 different tolerant control under two salinity stress (electrical conductivity 17.36 dsm) and without s...

Journal: :آب و خاک 0
زینب رحیمی محمد کافی

abstract in order to study the effects of salinity and silicon application on biomass of leaves and root of purslane (portulaca oleracea l.), a greenhouse experiment was conducted at research greenhouse of ferdowsi university of mashhad using completely randomized desgin with three replications. employed two factors consisted of three levels of salinity using nacl (0.6, 11, 22 ds/m) and two lev...

Journal: :آب و خاک 0
سحر اخوان محمود شعبانپور مسعود اصفهانی

in order to study the effect of soil compaction on root and shoot growth of wheat plants (shahriar variety), a greenhouse pot experiment was conducted in guilan university. the study design was factorial with completely randomized in three replications. treatments included three compaction levels; (normal compaction, compaction of ten percent and twenty percent) and two type of soil texture (cl...

In order to evaluate the effects of salicylic acid on some physiological characteristics of common purslane (Portulacea oleracea L.) under NaCl stress, a factorial experiment based on completely randomized design with three replications was conducted in 2013 in research greenhouse of Faculty of Agriculture, University of Yasouj, Iran. Treatments were included of six levels of NaCl salinity (0, ...

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