نتایج جستجو برای: leaf nutrition

تعداد نتایج: 165401  

Journal: :Annals of botany 2012
Lalith D B Suriyagoda Megan H Ryan Michael Renton Hans Lambers

BACKGROUND AND AIMS Studies on the effects of sub- and/or supraoptimal temperatures on growth and phosphorus (P) nutrition of perennial herbaceous species at growth-limiting P availability are few, and the impacts of temperature on rhizosphere carboxylate dynamics are not known for any species. METHODS The effect of three day/night temperature regimes (low, 20/13 °C; medium, 27/20 °C; and hig...

2015
Johannes Kirchberger Nico Eisenhauer Wolfgang W. Weisser Manfred Türke

BACKGROUND Recent studies suggested that the earthworm Lumbricus terrestris might act as a seedling predator by ingesting emerging seedlings, and individuals were observed damaging fresh leaves of various plant species in the field. To evaluate the significance of herbivore behavior of L. terrestris for plant and earthworm performance we exposed 23- to 33-days-old seedlings of six plant species...

2002
Lubomír Adamec

• The mineral nutrition of terrestrial carnivorous plants was investigated under glasshouse conditions to elucidate ecophysiological adaptations of this plant group. • In Drosera capillaris and D. capensis, absorption of N, P, K, and Mg from insects was relatively efficient (> 43%), whereas that of Ca was not. Carnivorous plants (D. capensis, D. peltata, D. scorpioides, and Dionaea muscipula) e...

2004
Natalie Kelly Tarryn Turnbull Leon Bren Mark Adams

The nature and spatial distribution of leaf area, especially leaf size, density and orientation, strongly regulates light harvesting as well as the exchange of carbon and water between plants and atmosphere (Pearcy and Yang 1996). The occupation of three-dimensional space and the characteristics of branches on which leaves are arranged, combine to generate wide variations in shoot, branch and t...

2015
D. Siva Nageswara Rao AShoka Rani

A field experiment was conducted during Rabi season of 2012-13 at Regional Agricultural Research Station, Lam, Guntur, with an aim to find out the effect of foliar nutrition on water potential, photosynthetic rate, dry matter production and yield of mung bean under receding soil moisture conditions in split plot design with irrigation and no irrigation as main treatments and foliar sprays as su...

2017
Shah Saud Shah Fahad Chen Yajun Muhammad Z. Ihsan Hafiz M. Hammad Wajid Nasim Amanullah Muhammad Arif Hesham Alharby

Non-irrigated crops in temperate and irrigated crops in arid regions are exposed to an incessant series of drought stress and re-watering. Hence, quick and efficient recuperation from drought stress may be amongst the key determinants of plant drought adjustment. Efficient nitrogen (N) nutrition has the capability to assuage water stress in crops by sustaining metabolic activities even at reduc...

Journal: :علوم باغبانی ایران 0
ولی کریمی دانشجوی دکتری علوم باغبانی دانشکده کشاورزی دانشگاه گیلان عبداله حاتم زاده دانشیار علوم باغبانی دانشکده کشاورزی دانشگاه گیلان معظم حسن پور اصیل دانشیار علوم باغبانی دانشکده کشاورزی دانشگاه گیلان حبیب اله سمیع زاده دانشیار گروه زراعت واصلاح نباتات دانشکده کشاورزی دانشگاه گیلان

this experiment was carried out in the agricultural faculty of guilan university. the factorial experiment was performed based on a completely randomized design of three replications. the experimental factors comprised of: lillium cultivars, navona (asiatic) and fangio (la), four levels of calcium nitrate (0, 1, 1.5 and 2 mm) in combination with three levels of iba (500, 750 and 1000 ppm) . the...

الیاسی, حسین, فلاح, الهیار,

The rice plant need the silicon element more than other nutrition elements, but its importance has not been clearly known. In order to study of silicon effect on the growth and yield of rice (Tarom Hashemi variety), an experiment was carried out in pot and field conditions with three replicates in the greenhouse and in the field of Rice Research Institute of Iran (Amol) in 2009 and 2010. Three...

2014
Salma Balazadeh Jörg Schildhauer Wagner L. Araújo Sergi Munné-Bosch Alisdair R. Fernie Sebastian Proost Klaus Humbeck Bernd Mueller-Roeber

Leaf senescence is a developmentally controlled process, which is additionally modulated by a number of adverse environmental conditions. Nitrogen shortage is a well-known trigger of precocious senescence in many plant species including crops, generally limiting biomass and seed yield. However, leaf senescence induced by nitrogen starvation may be reversed when nitrogen is resupplied at the ons...

حسینی فرهی, مهدی , خلدبرین, بهمن , خلیقی, احمد , عشقی, سعید , مشهدی اکبر بوجار, مسعود , کاوسی, بیژن ,

In order to investigate the effects of different forms of nitrogen in nutrient solution on photosynthesis rate and quantitative properties of rose cv. Dolcvita, an experiment was conducted in a randomized complete blocks design with seven ratios of urea: NH4+: NO3- (0-100-0, 0-50-50, 0-0-100, 50-0-50, 25-25-50, 15-15-70 and 0-0-100) and three replications, in a hydroponic greenhouse which grows...

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