May 2014
Enhance activity of stress related enzymes in rice (Oryza sativa L.) induced by plant growth promoting fungi under drought stress
Water scarcity is one of the main consequences of changing climate which adversely affects the plant growth and productivity. The present study aimed to investigate the effect of plant growth promoting fungi (PGPF), Trichoderma harzianum strain-35 (T-35) and newly discovered Fusarium pallidoroseum strain-10 (FP-10) on total biomass production and activities of the stress related enzymes [superoxide dismutase (SOD),...
May 2014
Effects of different rates of nitrogen (N) and phosphorus pentoxide (P2O5) on eggplant yield
The balanced fertilization is crucial for obtaining a good plants growth and achieve good productivity indices. The aim of this study was to evaluate the performance of eggplant (Solanum melongena L.) under different doses of nitrogen (N) and Phosphorus pentoxide (P2O5) performed separately. The study was conducted in 5 liter-pots arranged in a completely randomized design, consisting of 5 doses (0, 50, 100, 150 and 200...
May 2014
Performance of groundnut (Arachis hypogaea L) varieties in two agro-ecologies in Sierra Leone
Nine groundnut trials were conducted in the Southern Province of Sierra Leone in 2012 and 2013. The objectives of the trials were to evaluate the performance of two improved/groundnut varieties (Samnuts 22 and 23) and one improved local variety in the transitional rain forest and the savanna grassland agro-ecologies in the Southern Province of Sierra Leone, and to evaluate the responses of the varieties to...
May 2014
Competitiveness of flaxseed with weeds under different row spacings
The aim of this study was to evaluate the effect of the weed competition with different spacings in the culture of flaxseed (Linum usitatissimum L.). The experiment was conducted at the Campus of Unioeste - Cascavel, Paraná State, using the split-plot design in which the plots consisted of presence and absence of weeds and subplots consisted of row spacings (0.15, 0.30, and 0.45 m) with six replications. Plant...
May 2014
Agriculture information needs of farm women: A study in State of north India
Access to accurate, timely and reliable information plays a crucial role in the adoption of appropriate agriculture technology. Although, women contribute significantly in the farming operations, their contribution is not yet fully recognised and acknowledged. In order to improve agriculture productivity and production efficiency, there is an urgent need to identify their agriculture information needs. The present study...
May 2014
Phosphorus and potassium fertilization in culture of soybean plants in the Oxisol
It is recommended to use phosphorus and potassium fertilization on soybean; however it has been common to verify the absence of effect on crop productivity, especially in no-tillage system. Thus, the study aimed to evaluate the effect of doses of superphosphate and potassium chloride in the leaf tissue nutrient content and yield of soybean growing in Oxisol. The experiment was installed in October 2011 in a randomized...
May 2014
Evaluation of the biodiversity and stabilization of the soil after the fixating of the dunes by Retama retam Webb., Tamarix gallica L. and Tamarix aphylla (L.) Karst in the dunes cordon of El-Mesrane (W. Djelfa) in Algeria
Our study of the biodiversity of the vegetation and the stability of the soil surface at the levels of the dunes fixed by Retama retam Webb., Tamarix gallica L., Tamarix aphylla (L.) Karst and the natural fixation in the two experimental projects of the dunes fixation in Zahrez Gharbi of El-Mesrane region (W. Djelfa) shows that the dunes fixed by T. gallica and T. aphylla represent an important diversity with 57...
May 2014
Alkalinity induced changes in some of the enzymes of nitrogen metabolism during germination and early seedling growth of rice genotypes
Seeds of three rice (Oryza sativa L.) genotypes Viz. IR-42 (intolerant), USAR-1 and NDR-501(Tolerant) were germinated in Petri-dishes containing aqueous solution of NaHCO3 at pH of 8.5, 8.8, and 9.2 at 30+1°C in seed germinator. Seed kept for germination on distilled water served as control. Nitrate reductase (NR), Nitrite reductase (NiR) and Glutamine synthetase (GS) activities were assayed in embryonic axis after...
May 2014
Growth and physiological response of tomato to various irrigation regimes and integrated nutrient management practices
The experiment was conducted by combining two factors namely; irrigation scheduling with three levels and nutrient management with five levels. The two factors were crossed factorially; irrigation treatments were arranged in vertical strips and integrated nutrient management arranged in horizontal–strip with strip plot design replicated three times. Field soil was sampled for physical and chemical property...
May 2014
Tropical grass fertilized with wood ash in Cerrado Oxisol: Concentrations of calcium, magnesium and sulphur
While nutrients such as calcium, magnesium and sulphur are required by plants in lower amounts than the amounts required of nitrogen, phosphorus, and potassium, these nutrients are as important as those required for the growth and development of plants. Varying concentrations of calcium and magnesium can be found in wood ash as residue, which may have a high percentage of these nutrients. This study aims to evaluate the...
May 2014
Physical fractionation of soil organic matter under different land use systems
A sustainable management of soil organic matter is fundamental for the maintenance of the soil productivity. The objective of this study was to evaluate changes in the contents and storage of the fractions of the soil organic matter under different management systems compared to the native vegetation as reference in a Red-yellow Latosol in the southern region of the State of Espírito Santo, Brazil. The applied...
May 2014
The epidemiology of Pectobacterium and Dickeya species and the role of calcium in postharvest soft rot infection of potato (Solanum tuberosum) caused by the pathogens: A review
Contamination of potato with soft rotting enterobacteria belonging to the Pectobacterium and Dickeya genera is one of the biggest problems in potato production. Calcium plays an important role in minimising the severity and incidence of potato tuber soft rot in storage. This review gives a detailed assessment of the epidemiology of the pathogens and how calcium affects potato tuber soft rot in storage. Key words:...
May 2014
Sources and rates of nitrogen in summer corn under no-tillage on winter cover crops
Cover crops occupy and protect the soil during winter and also provide nutrients to tropical soils. The aim of this study was to evaluate the effect of sources and levels of nitrogen applied to a summer corn crop cover in succession to cover cropsunder no-tillage. The experimental design consisted of randomized blocks with four replications in a scheme with subdivided plots. The main plot was composed of two crops that...
May 2014
The potential use of cover crops for building soil quality and as trap crops for stinkbugs in sub-tropical fruit orchards: Knowledge gaps and research needs
There is a renewed interest in cover crops and the role they can play in the pursuit of sustainability in agroecosystems. These versatile crops have not only demonstrated the ability to improve soil but numerous species have also shown the potential to act as trap crops for insect pests. We suggest that cover crops may concurrently serve both these purposes in sub-tropical fruit orchards, depending on the choice and...
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