This study reports lovastatin production by solid state fermentation using pomegranate seeds as a substrate. Six different fungal strains and several agro-industrial wastes were selected and screened. Various physicochemical parameters were optimized to improve lovastatin productivity. Moreover, chemical mutation was system-atically employed to enhance lovastatin yield on selected strains. Prod...

In order to evaluation of drought resistant indices in barley (Hordeum vulgare L.), 10 barley genotypes evaluated in Completely Randomized Design with three Replications in two conditions, (under drought stress and in normal with irrigation in planting, flowering and grain filling stages) in Islamic Azad University, Miyaneh Branch Research Farm in 2012. Drought tolerant indices basis of yield p...

1 At local spatial scales, species richness tends to fall as productivity rises. Most explanations have focused on increased extinction, but, instead, we test experimentally whether increased soil fertility reduces recruitment. Specifically, we test whether variation in recruitment is due to source limitation, germination limitation or establishment limitation, and how litter accumulation and s...

Technology adoption for increased productivity can only be relevant when technologies introduced are adequately complied with. This study assessed the level of compliance by CAY -Seed and NRCRI-Seed yam farmers to usage seed production examined CAY- Seed NRCRI - farmers’ farms. The adopted a multi-stage sampling technique total 283 respondents were used study. In addition, made use cross-sectio...

BACKGROUND Jatropha curcas L. is an oil seed producing non-leguminous tropical shrub that has good potential to be a fuel plant that can be cultivated on marginal land. Due to the low nutrient content of the targeted plantation area, the requirement for fertilizer is expected to be higher than other plants. This factor severely affects the commercial viability of J. curcas. RESULTS We explore...

this experiment was designed to evaluate the effects of different levels of full fat canola seed (either with or without any enzyme addition) on broiler productivity. four hundred and thirty two male broilers were employed in a completely randomized design of 2×6 factorial arrangement involving 2 levels of enzyme (either with or without), and 6 levels of canola seed (0, 5, 10, 15, 20, 25%). exp...

Nitrogen (N) remobilization from reserves to sinks is essential for seedling establishment and seed production. Cytosolic glutamine synthetase (GS1) is up-regulated during both seed germination and seed filling in plants. However, the specific roles of the individual GS1 isogenes with respect to N remobilization, early seedling vigour, and final seed productivity are not known. In this study, i...

The strength of trophic cascades in terrestrial habitats has been the subject of considerable interest and debate. We conducted an 8-year experiment to determine how exclusion of vertebrate predators, ungulates alone (to control for ungulate exclusion from predator exclusion plots) or none of these animals influenced how strongly a three-species assemblage of rodent consumers affected plant pro...