February 2014
First record of Dacus (Lophodacus) hamatus (Diptera: Tephritidae) in Cameroon, with emphasis on a new host plant Lagenaria siceraria (Cucurbitaceae)
In Cameroon, fruit flies (Diptera: Tephritidae) represent a major constraint to fruit production in cucurbits. They are known to feed essentially on fruits, but some species are flower specialists. The present study aims to assess the oviposition preference of fruit flies on seven species of cucurbits along with two varieties (bitter and sweet) of Lagenaria siceraria (Molina) Standley at two locations namely Yaounde and...
February 2014
The use of improved maize varieties in Tanzania
Maize is the most important food crop in Tanzania, covering 45% of the cultivated area. Maize farmers have adopted many improved maize varieties but different studies have produced different estimates of adoption rates. A survey was, therefore, conducted in 2001 to estimate the area in improved maize seed, to collect opinions regarding maize recycling, constraints to production and strategies to obtain improved maize...
February 2014
Evaluation of the effects of different tillage systems, plant patterns and plant densities on grain yield and yield components of corn (Zea mays L.cv.sc704) in North of Iran
In order to investigate the effect of tillage system and plant density in two plant patterns on kernel yield and its component on corn (Zea mays L.cv.sc704), an experimental design, randomized complete block in a strip factorial was used, treatments arrangement were within four replications in north of Iran in 2011. The main plot was subjected to tillage system in three levels: Rotary System (RS); Disk...
February 2014
Effect of enriched farmyard manure and inorganic fertilizers on grain yield and harvest index of hybrid maize (bh-140) at Chiro, eastern Ethiopia
Application of farmyard manure (FYM) alone or in combination with inorganic fertilizers helps in proper nutrition and maintenance of soil fertility in maize fields when applied at proper doses replenishing the most deficient macro and micro nutrients which in turn help in getting the highest grain yield and harvest index in hybrid maize varieties. The harvest index determines how many photosynthates are transformed into...
February 2014
Influences of mineral nitrogen and phosphorous fertilization on yield and yield contributing components in hot pepper (Capsicum annuum L.)
Hot pepper is widely cultivated in different parts of Ethiopia but, its productivity is low due to inadequate nutrient supply, moisture and poor agronomic practices. This experiment was conducted to determine the amount of N and P nutrients required to produce optimum amount of hot pepper marketable yield. Four different rates of DAP and urea fertilizers (25, 50, 75 and 100 kg/ha and control) were used as treatments....
February 2014
Management of nitrogen fertilizer, irrigation and plant density in onion production using response surface methodology as optimization approach
Response surface methodology (RSM) is defined as a collection of mathematical and statistical methods that are used to optimize a product or a process. In order to determinate optimum levels of nitrogen (N), water volume and plant density of onion (Allium cepa L.), and field experiment was carried out according to a central composite design as RSM in Azarshahr County, East Azerbaijan Province, Iran –repeated...
February 2014
Effect of sulphur on yield and chemical composition of essential oil of Ocimum basilicum L.
This study aimed at assessing the effect of using different sulphur dilutions in the yield and composition of essential oil of Ocimum basilicum L. (basil). Sulphur was applied at different dilution rates with a centesimal scale ranging from 0c (control), 6c, 12c, 24c, to 30c. The experiment was conducted in pots at open atmosphere for 5 months, using a weekly dosage of 250 ml of the different dilution rates. Parameters...
February 2014
Effect of Celmanax® on feed intake, live weight gain and nematode control in growing sheep
The role of yeast supplementation in small ruminants on rumen fermentation, animal performance, and nematode control is still unclear. The effect of Celmanax® (yeast culture product) in two diets using lambs on body weight gain, rectal temperatures and nematode loads were monitored. 24 sheep (17 ± 2.8 kg BW), housed in individual pens, were divided into four treatments and fed on four basal diets; lucerne...
February 2014
Growth, yield and quality of strawberry (Fragaria x ananassa Duch.) cv. Chandler as influenced by various mulching materials
Studies were carried out to evaluate the effect of different mulching materials on growth, yield and quality of strawberry cv. Chandler having seven treatments with three replications in Randomized Block Design during 2010 and 2011. The treatments comprised of paddy straw, wheat straw, dry grass, transparent polyethylene, black polyethylene and no mulch (control). The results revealed that strawberry is very responsive...
February 2014
Genotypic × environment interaction and stability analysis for yield and quality components in elephant foot yam [Amorphophallus paeoniifolius (Dennst) Nicolson]
Genotypic × environment (G × E) interactions in 35 indigenous line of elephant foot yam (Amorphophallus paeoniifolius Dennst Nicolson) were evaluated for two consecutive years of 2007 and 2008 under four environments in randomized block design (RBD) for yield, plant height, weight of corm, size of corm, dry matter and starch content. Mean squares deviation due to environment and environment linear variations...
February 2014
Effect of saline water on germination and early growth stage of five Apiaceae species
Improving crop tolerance to salinity stress is a major challenge in many regions of the world towards sustaining the global food security. In this study, an interspecific difference in salinity tolerance was examined among five Apiaceae species: Caraway, celery, dill, fennel and parsley. Saline water was used at concentrations of 0, 1000, 2000 and 3000 ppm for 15 days from seed sowing (germination experiment) or for 30...
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