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Békési, P. (1999): Napraforgó betegségek (Diseases of sunflower). Magyar Mezógazdaság 54, 14–15. Napraforgó betegségek (Diseases of sunflower) Magyar Mezógazdaság

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46 1488 1500 Hunyadi Borbely, E., Csajbok, J., Lesznyak, M. (2007): Relations between the yield of sunflower and the characteristics of the cropyear

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Gundaev, A. I. (1970): The use of the character of male sterility in interline hybridization of the sunflower. All-Un. Inst. Oil, Essent, Krasnodar, USSR. Reter. Plant Breed. Abstr. 40 , 4529

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Harmati, I. (1993): Effect of fertilizers on sunflower yields. Agrokémia és Talajtan , 42 , 282–292. Harmati I. Effect of fertilizers on sunflower yields

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Bahl, G. S., Pasricha, N. S., Ahuja, K. L. 1997: Effect of fertilizer N and P on grain yield, nutrient uptake and oil quality of sunflower. J. Indian Soc. Soil Sci. , 45 , 292

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Sunflower biodiesel

Use of P-DSC in the evaluation of antioxidant efficiency

Journal of Thermal Analysis and Calorimetry
Authors: M. L. A. Tavares, N. Queiroz, I. M. G. Santos, A. L. Souza, E. H. S. Cavalcanti, A. K. D. Barros, R. Rosenhaim, L. E. B. Soledade and A. G. Souza

]. In Brazil, the vegetable oils more commonly used for obtaining biodiesel are oils from soybean, castor bean fruit, sunflower, cotton, palm, and others [ 3 , 4 ]. The oxidation resistance is an important issue for the life cycle of biodiesel

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Cereal Research Communications
Authors: V. Kovacevic, D. Banaj, J. Kovacevic, A. Lalic, Z. Jurkovic and M. Krizmanic

Aim of this study was testing of field crops (maize-maize-sunflower-winter barley rotation) to lime (carbocalk: waste of sugar factory, 39% CaO) application in five rates up to 90 t/ha. Field trial was conducted in autumn 2000 in four replicates. Liming with carbocalk resulted with considerable increases of field crop yields as follows: up to 50% and 36% (maize for 2001 and 2002, respectively), up to 49% (sunflower 2003) and up to 30% (barley 2004). In general, by application of carbocalk to level of 90 t/ha, yields drastically decreased mainly to level of control as affected by over liming. Concerning oil contents in sunflower grain, it was significantly higher compared to control for treatments 15, 30 and 45 t/ha, but similar for control and 60 t/ha. Using of 45 and more lime per hectare decreased grain quality of malting barley because protein contents were significantly increased.

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A field experiment was conducted during the kharif (June–September) and rabi (October–January) seasons of 2005–2006 to study the effect of a maize — sunflower cropping system on the weed flora shift. The results revealed a change in weed species, i.e. the appearance of new species and the elimination of certain weed species due to the cropping system. The density of Dinebra retroflexa was high during the 1 st year maize cropping period, but Panicum repens became dominant when sunflower was grown after maize. Cyperus rotundus , originally the dominant sedge, was smothered by Cynodon dactylon due to zero tillage. Dactyloctenium aegyptium was the dominant weed species in maize, while Parthenium hysterophorus was the dominant weed species in sunflower. The proportions of Datura fastuosa, Parthenium hysterophorus, Trianthema portulacastrum, Amaranthus viridis, Amaranthus polygamus, Flaveria austerlagica, Gynandropsis pentaphylla and Portulaca quadrifida were higher during the 1 st year maize cropping season, while later their density was gradually reduced due to the inclusion of sunflower in the system.

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Abstract  

The extracts from sunflower and mustard leaves were separated using SPE-Columns. The mustard seeds were germinated on water (24 h) and subsequently on crude extracts or separate fractions. The heat production rate was measured by isothermal calorimetry at 21°C and changes in seed cotyledons by FT-Raman spectroscopy. Crude extracts strongly inhibited seed germination. The water and ‘methanol’ fractions of mustard and sunflower extracts have a similar influence on the pattern of heat efflux. FT-Raman spectroscopy showed that extracts caused changes in cotyledons mainly in the content of fatty acids, carotenoids and flavonoids. Isothermal calorimetry and Raman spectroscopy are useful for the study of allelopathic interactions.

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. Statistical Procedures for Agricultural Research Hittinahalli, N. M. 1998: Effect of irrigation, nitrogen and sulphur fertilization on hybrid sunflower (DSH-1). M.Sc. Thesis, University of

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