List of Articles Open Access Article Abstract Page Full-Text 1 - Effect of plant densities on morphological characteristics and seed yield of soybean genotypes in Markazi province M. Anajafi A. Farnia Open Access Article Abstract Page Full-Text 2 - Study of temprature effects on maze different hybrids yield, yield componants and phenological stage in Jiroft region M. H. Shirzadi R. Chokan H. Heidari Sharifabad M. J. Mirhadi H. Madani Open Access Article Abstract Page Full-Text 3 - Effects of drought stress on noduling and nitrogen fixation of Rhizobium Japonicum bacteria strains of soybean A. Farnia G. Noormohamadi A. Naderi Open Access Article Abstract Page Full-Text 4 - Relationship between yield and its components in bread wheat (Triticum aestivum L.) genotypes in drought and non-drought stress conditions A. Golparvar H. Madani M. Rasouli Open Access Article Abstract Page Full-Text 5 - Cytological study and determination of ploidy levels in some hybrids of Kotra 10 cultivars of citrus plants M. Mahmoudi M. Khosroshahali A. Zakerin Open Access Article Abstract Page Full-Text 6 - Study the competition model of Wheat and Ryegrass in different feeding conditions M. A. Makvandi M. Latifian E. Soleimannezhadian Open Access Article Abstract Page Full-Text 7 - Determination the mathematical model of repair and maintenance cost of New Holland TM155 and Valtra 8400 tractors in Markazi and Fars Provinces M. R. Vafaee H. Mashhadi Meighani A. Borghei Open Access Article Abstract Page Full-Text 8 - Investigation of effective parameters on innovation adoption of "Soil Test” by cereal planters in Qom province S.D. Hajimirrahimi Y. Yazdian