Water shortage seriously threatens crop growth and development especially in semi-arid areas. Association of plants with beneficial soil microorganisms is a strategy for plant adaptation to environmental stresses. In this study, the effect of seed inoculation of rapeseed genotypes with mycorrhiza-like fungus (Piriformospora indica) and growth-promoting bacterium (Arthrobacter siccitolerans) was...

Using multivariate statistical methods in evaluation of various traits in several genotypes has caused the discovery of different aspects of agronomic crops’ traits. In order to study diversity and interrelationships of yield and yield components of rapeseed, 36 genotypes of rapeseed were used in a 6 × 6 simple lattice design layout with two replications. Results of primary analysis of variance...

One of the new methods for optimum management and increasing the efficiency of water resources utilization in agricultural uses is the use of irrigation methods. Considering the importance of this issue, this research was carried out to determine the effect of mycorrhizal fungi on the yield of sunflower cultivars under drought tension conditions and as split split plots based on randomized comp...

Thirty soybean cultivars from different maturity groups were evaluated in a randomized complete block design with four replications in Research Station of College of Agriculture at Tehran University in Karaj in 2004. The purpose was to determine genetic relationship of some important agronomic traits related to seed yield. Analysis of variance showed that there were significant differences amon...

  In order to investigate the combining ability of sunflowers lines under normal conditions and drought stress, a study was conducted at the Seed and Plant Improvement Institute, Karaj, Iran in 2006. A total of 41 treatments including 2 CMS and 13 restorer lines as well as their 26 corresponding hybrids were evaluated in two irrigation conditions, in a line x tester approach. The analysis of va...