نوع مقاله : مقاله پژوهشی
نویسندگان
1 کارشناسی ارشد آسیب شناسی گیاهی، دانشگاه ولی عصر رفسنجان، ایران
2 استادیار بیماری شناسی گیاهی، دانشگاه ولی عصر رفسنجان، ایران
3 دانشیار زراعت، دانشگاه ولی عصر رفسنجان، ایران
4 عضو هیأت علمی دانشگاه پیام نور، دانشکده کشاورزی
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Due to the importance of mycorrhizal fungi and their ability in colonization of plants, the use of some microorganisms and chemical compounds to improve mycorrhizal activity is an important issue. In this study, an experminet was conducted as a compeletely randomized factorial desin with three replications at Valiasr University of Rafsanjan.Three fungal species, Funneliformis mosseae(FM), Rhizophagus intraradices(RI) and Rhizophagus irregalaris (RIr) were applied asmycorrhizal inoculant and the effect of some microorganisms including yeast (Issatchenkia orientalis) and bacteria (Pseudomonas fluorescens VUPf5) as well as chemical compounds such as compost tea, azolla extract, bacterial siderophore, humic acid and amino acid complex on fungal activity and physiological parameters of corn plant (SC750 cultivar) was examined. The results showed that all species of mycorrhizal fungi combined with bacterial treatment and chemical compounds had a significant effect on stem diameter and longitudinal growth, leaf area increase, root weight and dry weight and shoot dry weight. Variance analysis of SPAD showed that there was not significant difference between mycorrhizal and non-mycorrhizal treatments. However, the application of different species of mycorrhizal fungi had a significant effect on the content of chlorophyll a, chlorophyll b, total chlorophyll and carotenoids in compared to the control (without mycorrhizal fungus) treatment. The use of humic acid and compost had the extreme effect on plant growth. Amino acid complex treatment with Rhizophagus intraradices had the greatest effect on chlorophyll a, chlorophyll b and total chlorophyll content. The treatments of yeast and amino acid complex had the greatest effect on carotenoids, respectively..
کلیدواژهها [English]
40. Zahir, Z. A., Arshad, M. and Frankenberger. W. T. 2004. Plant growth promoting rhizobacteria: Application and perspectives in agriculture. Advances in Agronomy 81;97