the aim of this study was investigation the combined effect of terminal heat of last growth season and competition between plants on phenology, yield and components yield in faba bean. a field experiment with 3 sowing dates (28 november 2011, 15 december 2011 and 7 january 2012) and 4 plant densities (8, 12, 16 and 20 plants m-2) was conducted on faba bean (cv. barkat) at agricultural science r...

Salinity and water stress reduces the ability of plant to take up water and decrease growth rate, photosynthesis rate (An) and stomatal conductance (gs) of plants. In this study, effects of deficit irrigation with different salinity levels and planting method (in-furrow and on-ridge) as strategies for coping with water and salinity stress on physiologic properties of rapeseed was investigat...

All organisms are probably exposed to different types of electromagnetic fields (EMFs). This study is an attempt to evaluate the effect of extremely low-frequency EMFs (50 Hz) on some growth parameters and survival rate of common carp fingerling. The fry (n = 120, averaged 16.76 ± 0.88 g in initial weight) was exposed to ELF-EMF at four intensities of 0.1, 0.5, 1 and 2 mT only once for 2 h and ...

Sukumar Saha, J.N. Jenkins, J.C. McCarty, Jr., O.A. Gutierrez USDA-ARS, Crop Science Research Lab, P.O. Box 5367, Mississippi State, MS 39762; J. Wu, Department of Plant & Soil Sciences, Mississippi State University, Mississippi State, MS 39762; D. M. Stelly and D. A. Raska, Department of Soil & Crop Sciences, Texas A&M University, College Station, TX 77843-2474; R. G. Percy, USDA-ARS, Maricopa...

The productivity of arid region is much lower and resource degradation faster comparatively other ecosystem due to aberrant climatic conditions anthropogenic activities. Lower production in nutrient water holding capacity soil, erratic rainfall pattern inappropriate crop management practices. Therefore, present study was conducted with six planting techniques four practices split plot design re...

Bananas and plantains belong to the family Musaceae and are cultivated throughout the humid tropics and sub-tropics. This crop is perennial with a faster relative growth rate compared to other fruit crops, while producing fruit all year round. Because of their nutritional value, bananas and plantains are considered the fourth most important crop worldwide after rice, wheat and corn. In many cou...

A study was conducted to determine the effects of water temperature and rations size on growth performance, feed utilization and carcass biochemical composition of juvenile Benni. Six treatments representing a combination of two water temperature (24 and 28 °C) and three feeding rations (1%, 3% and 5%) were tested with three replicates. Each replicate was stocked with 12 fish (30.66±0.81 g aver...

biofertilizers are natural inputs that can be applied as complement or substituent of chemical fertilizers in sustainable agriculture. effects of n and p bio- and chemical fertilizers on growth indices of maize (zea mays l.) was studied on 2008 in shushtar, iran, based an as a factorial experiment based on completely randomized block design with three replications. treatments consisted four lev...

Primary production was measured at a series of stations in austral summer 1996 in the vicinity of South Georgia. Five stations were occupied along a 700 km transect southeastwards towards the western tip of South Georgia. Three stations were located north of the Antarctic Polar Front (PF) with mean primary production of 0.41 g C m–2 d–1 compared to 0.54 g C m–2 d–1 for the stations south of the...