نتایج جستجو برای: 25 and 333 plant m
تعداد نتایج: 16986623 فیلتر نتایج به سال:
in the present study resistance of some elite lines of wheat at seedling stage were evaluated in cereal rusts greenhouse at seed and plant improvement institute in karaj and at adult plant stage in ahvaz under artificial inoculation with an isolate of leaf rust from ahvaz. for seedling resistance, different components of resistance were measured. the results showed that lines m-85-1, m-86-1 and...
In order to study and compare quantitative and qualitative traits of different forage vetch species under rainfall and supplemental irrigation conditions, two seprate experiments (rainfall and supplemental irrigation conditions) were conducted of faculty of Agriculture, Lorestsn University, Iran, during 2008-2009. Three species and three plant densites were combined factorially based on a rando...
silvicultural operation need to notice the plant species diversity in forest. to this study gomarlang district in marivan region, northern zagros forest was selected. selected 100 ha area because have similar physiography condition (north aspect and 1650 to 1800 m s.a.l. in study area 100 micro plots of 5m by 5 m (25 m2) including the species and the numbers of this species randomized-systemati...
Cowie, G. A. (1941). Nature, Lond., 148, 285. Cowie, G. A. (1942). Ann. appl. Biol. 29, 333. Findlay, W. M. (1928). Scot. J. Agric. 11, 339. Nutting, H. W. (1942). Food Re8. 7, 227. Nutting, H. W. & Pfund, M. C. (1942). Food Re8. 7, 48. Rieman, G. H., Tottingham, W. E. & McFarlane, J. S. (1944). J. Agric. Re8. 69, 21. Robison, V. M. (1941). Nature, Lond., 147, 777. Smith, O., Nash, L. B. & Ditt...
NaBH4-reduced phosphorylase b is a catalytically active species which retains many of the properties of the native enzyme. One property that is strikingly different, however, is the spectral behavior of bound pyridoxal phosphate. At pH 7.0, the pyridoxal phosphate shows essentially no absorption at 333 nm, where pyridoxal phsophate in the native enzyme absorbs; absorption at 333 mn returns upon...
potassium (k) is an element essential for plant growth, playing a significant role in physiological and biochemical processes in plant. the relationship between a soil testing extractant vs. plant nutrient uptake should be a determining parameter in the selection of a soil testing method. the objective of this study was to evaluate different extractants employed for extracting available k in 10...
The plant communities locating at the margins of the waterways play a vital role in the ecological processes and ecosystem services in the semi-arid mountainous regions. In this study, variations of plant diversity and composition at different distances from the waterway and its slope aspects were investigated. For this purpose, 15 sub-basins with a variety of area and length of waterway, in bo...
fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...
Intercropping is a sustainable practice to achieve higher production with the aim to limit external inputs. A field experiment was conducted at the research farm of the Faculty of Agriculture, University of Maragheh, Maragheh, Iran, during 2016 growing seasons with ten treatments to evaluate the yield, analyze the competition and insect’s assemblages in sunflower (as main plant)/soybean (as com...
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