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302 results for “Leaf”

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Research ArticleOpen accessIn the abstractInduction of Embryogenic Callus and Plant Regeneration in Carnation (Dianthus caryophyllus L.)Omid KaramiIn this study, efficient plant regeneration through somatic embryogenesis is achieved in four cultivars of carnation (Nelson, Sagres, Spirit and Impulse). Embryogenic calli were induced on petal explants only, all the calli established on leaf, sepal, receptacle and style explants were not embryogenic. Embryogenic calli were obtained on Morashige and Skoog basal medium (1962) containing sucrose 9%, 2.0 mg L-1 … …OnLine Journal of Biological Sciences, Vol. 8, Issue 4 · 31 Dec 2008 · 6,813 accessesView PDFCite
Research ArticleOpen accessIn the abstractResidual Influence of Early Season Crop Fertilization and Cropping System on Growth and Yield of CassavaE. A. Makinde, O. T. AyoolaProblem Statement: In assessing fertilizer effects to sustain an intensive cropping system, the residual effects of fertilizer applied to preceding maize on the growth and yield of cassava and the effects of intercropping with soybean were studied in field experiments at Ibadan, Nigeria. Approach: Maize, established in April was fertilized using either organic manure or inorganic fertilizer or a mixture … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 4 · 31 Dec 2008 · 7,967 accessesView PDFCite
Research ArticleOpen accessIn the abstractFoliar and Soil Application of Potassium Nitrate Affects the Tolerance of Salinity and Canopy Growth of Perennial Ryegrass (Lolium perenne var Boulevard)S.J. Tabatabaei, F. FakhrzadTwo experiments were conducted to determine the effect of KNO3 application on perennial ryegrass salinity tolerance. Two NaCl levels (0 and 60 mM) factorially combined with four KNO3 (KN) levels (0, 5, 10 and 15 mM) as the treatments. The KN was applied either to the soil or foliarly sprayed. The results showed that in both experiments the increased salinity … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 3 · 30 Sep 2008 · 8,052 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeographic Distribution and Genetic Analysis of Physiological Racesof Setosphaeria turcica in Northern ChinaJingao Dong, Yongshan Fan, Xiumei Gui et al.Five hundreds and forty-six isolates of Setosphaeria turcica, the causal agent of Northern Corn Leaf Blight, were collected in 61 corn-growing locations throughout six provinces of Northern China during 2000-2002, to determine their pathogenicity on two sets of host differentials: OH43/Huangzao4, OH43Ht1Huangzao4Ht1, OH43Ht2/Huangzao4Ht2, OH43Ht3/Huangzao4Ht3 and OH43HtN/Huangzao4HtN. The isolates were grouped into 13 different physiological races (0, 1, 12, 3, 13, … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 8,806 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Adding Zeolite to Soils in Order to Improve the N-K Nutrition of Olive Trees. Preliminary ResultsR. Perez-Caballero, J. Gil, C. Benitez, J. L. GonzalezThis paper describes an experiment performed in order to study the possibility of using zeolite in organic olive groves. Soil and leaf analysis was performed and an increase in soil N levels was observed. Furthermore, higher levels of K in the soil and the trees point to the improved nutritional potential of these soils in terms of K, as a … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 8,392 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of the Use of Rice Bran Compost for Eco-friendly Weed Control in Organic Farming SystemsM.A.I. Khan, K. Ueno, S. Horimoto et al.Rice bran compost (RC) was evaluated under greenhouse and field conditions for eco-friendly weed control of vegetable crops in organic farming systems. RC was applied 7 days before spinach seed sowing, at the rate of 0% (control), 10%, 20% and 30% of soil (v/v) in the greenhouse and 2 kg m-2 under field conditions. RC significantly controlled the number and … …American Journal of Environmental Sciences, Vol. 3, Issue 4 · 31 Dec 2007 · 7,927 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Organic and Inorganic Fertilizers on Nitrogen and Potassium Uptake and Yield of Sweet Corn Grown on an Acid SoilMohd. Taufik Mohd. Yusuff, Osumanu Haruna Ahmed, Wan Asrina Wan Yahaya, Nik Muhamad Ab. MajidA field study was carried with the following objectives: (i) To investigate the effect of compost, N, and K fertilizers on selected chemical properties of Bekenu series (Tipik Tualemkuts), and (ii) To investigate the effect of compost, N and K fertilizers on N and K uptake and yield of Masmadu variety cultivated on Bekenu series. Treatments evaluated were: (i) No … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 2 · 30 Jun 2007 · 9,968 accessesView PDFCite
Research ArticleOpen accessIn the abstractControl of Anthracnose Caused by Colletotrichum musae on Curcuma alismatifolia Gagnep. Using Antagonistic Bacillus spp.Supuk Mahadtanapuk, Mondhon Sanguansermsri, Robert W. Cutler et al.Over 400 bacterial strains, isolated from leaf surfaces of Curcuma alismatifolia Gagnep. and hot springs in the Chiang Mai province of northern Thailand, were screened in vitro for antagonistic activity against Colletotrichum musae, an anthracnose fungus. Three isolates provided greater than 75% growth inhibition of the fungus in vitro and were identified as Bacillus licheniformis, B. amyloliquefaciens and B. subtilis. … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 2 · 30 Jun 2007 · 9,005 accessesView PDFCite
Research ArticleOpen accessIn the abstractAgrobacterium-mediated Genetic Transformation in Cucumber (Cucumis sativus L.)A. Vasudevan, N. Selvaraj, A. Ganapathi, C.W. ChoiThe present study was undertaken to develop efficient transformation protocol for cucumber cv. Poinsett 76 using Agrobacterium strain EHA 105. Five-day-old mature cotyledon explants was used for transformation study. The infected explants were co-cultivated for 2 days in MS medium containing BA (1.0 mg Lˉ1). The selection of transformed shoots was carried out in MS medium fortified with BA (1.0 … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 1 · 31 Mar 2007 · 8,901 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigation of Stomata Densities in Pea (Pisum sativum L.) Lines/CultivarsHatice Bozoglu, Reyhan KarayelThis study was conducted to determine, if stomata density can be used as a criterion in cultivar differentiation or not. In this study, density of stomatas in stipula and abaxial and adaxial surface of leaflets was determined in the flowering and pod set period of 23 pea cultivars and lines that were sowed as wintertime for 2 years. The effect … …OnLine Journal of Biological Sciences, Vol. 6, Issue 2 · 31 Dec 2006 · 6,947 accessesView PDFCite