life table parameters of the beet armyworm, spodoptera exigua (hã¼bner), on four sugar beet cultivars (renger, fd0005, dorothea and shirin) were studied in laboratory at 27 â± 1â°c, 60 â± 5% rh and a photoperiod of 16l: 8d hours. the larvae successfully developed on all cultivars. the shortest and longest total developmental time were recorded on fd0005 and renger, respectively. the development...

an investigation was carried out to study the developmental time, reproduction and life table of three populations of the onion thrips, thrips tabaci lindeman, on onion (khorasan and golestan populations) and also on tobacco (mazandaran population) in the laboratory at 25â°c, 50% rh and 16: 8 h l: d. the total life cycle from egg to adult of khorasan, golestan and mazandaran populations were ga...

background and aims: life expectancy is one of the most important indicators of health and well-being of a society. since it is claimed that in aran-bidgol region, center of iran, life expectancy is higher than the average of the country, this study was designed. methods: during a cross-sectional study, population and mortality data of kashan university of medical sciences (kaums) in 2011 were ...

Unraveling the assembly mechanism is a core research topic of microbial ecology. Abundant and rare communities are crucial for diversity, function host health in given ecosystem, but few studies focused on their strategies. Here, we explored diversity abundant water, shrimp intestine sediment habitats cultural ponds. Our results found that numbers operational taxonomic units (OTUs) (6,003, 4,56...

predatory damsel bug, nabis pseudoferus remane has a high density in the alfalfa fields and feeds on different types of prey. in this study, biological properties and life table statistics of n. pseudoferus by feeding on melon aphids have been determined under controlled conditions (at 25±1˚c, 60±10% relative humidity and under a photoperiod of 16h light/ 8h dark). data analysis carried out bas...