Pathogenic infection in tasar silkworm, Antheraea mylitta Drury. is common and there is a breed specific response regarding tolerance. Observations reveal the possibility of differential response by haemocytes to microbial infection in different breeds. Hence, the susceptibility of three eco-races of tasar silkworm viz. Daba, Sarihan and Raily to Antheraea mylitta Cytoplasmic Polyhedrosis Virus...

abstract this study was conducted at rudasht research farm in isfahan to evaluate tolerance to zinc (zn) deficiency of 30 spring wheat genotypes, using split plots in a randomized complete blocks design with triplications. main plot consisted of two zn levels (zero and 80 kg zn ha-1 applied as zinc sulfate at planting). the results of anova as well as correlations between tolerance and suscepti...

although inter-variety variability for salt tolerance has been reported in bread wheat plants, little information is available on the genetic control of ion contents and biomass yield under saline conditions. a diallel cross, including reciprocals of two salt tolerant, two moderately tolerant and two sensitive iranian and exotic bread wheat varieties, was analyzed to investigate the inheritance...

In order to identify drought tolerant chickpea genotypes, an experiment was conducted in the west of Iran, during 2007-2009 cropping seasons. Several selection indices were used to illustrate genotypic differences in response to drought stress. The results of combined analysis of variance showed that year, genotype, stress conditions and their interaction effects were highly significant. Correl...

In the present study, the larvicidal activity of crude extracts from the stem and fruits, their fractions and fresh fruit juice of Duranta repens were assayed against the larvae of Culex quinquefasciatus. The highest larval mortality was found in chloroform soluble fraction of stem (LC50 = 10.75 ppm in 12 h) and ethanol extract of fruits (LC50 = 8.51 ppm 12 h) of Duranta repens against I instar...

The main objective of this research was to evaluate fifteen durum wheat (Triticum durum) genotypes selected from joint project of Iran/ICARDA for drought tolerance using several indices. The trials were conducted under moderate levels of drought stress for three cropping seasons (2004-2006) in four locations in the highlands western of Iran. The combined ANOVA for grain yield over years and loc...

to improve bread wheat salt tolerance, new genetic sources of salt tolerance are indispensable, and this requires a screening of wheat germplasm. in order to evaluate bread wheat germplasm, 34 accessions including; hexaploid wheats (aabbdd), tetraploid (aabb) and wild relative diploids (dd and aa genome) collected from different regions of iran were evaluated under normal vs. salinity stress (n...

the first step in identification of genes which control traits in stress and no stress conditions is localization of chromosomal related to traits. in order to locate the genes controlling drought resistance and screening quantitative indices of drought resistance in wheat, substitution line series of hope into the genetic background of chinese spring (cs) were tested in a randomized complete b...