Effects of Two Biologic Fertilizers Containing Amino Acids on Leaf Chlorophyll Index in Bread Wheat Cultivars in Greenhouse

Abstract: To study the effect of two biologic fertilizers containing amino acids and oligopeptide on chlorophyll amount in 11 bread wheat cultivars in drought stress, a research was conducted in Ardabil IAU research greenhouse during 2011. The study design was factorial on base of completely randomized block in three replications. Factor A in two conditions (drought and normal), factor B in three levels (water, aminol-forte and fosnutren) and factor C included 11 wheat genotypes. Results suggested that there is a significant relation between solutions based on leaf chlorophyll amount before and after applying drought stress at 1 percent. Also, there was a significant difference found between various genotypes on chlorophyll amount after applying drought stress at 5 percent. However, there was no significant difference found between genotypes before drought stress, genotype interaction and test conditions before and after applying drought stress on chlorophyll amount. Results to the studied genotypes means comparison indicated that Kuhdasht genotype with a mean of 42.747 had the highest chlorophyll amount after applying drought stress and Sardari genotype with a mean of 29.591 had the lowest chlorophyll amount. Gascogne, Saysonz, Zagros and Chamran genotypes formed one group. Rasad and Azar 2 formed one group and also Bezostaya, Cross Sabalan and MV 17 formed another and showed no difference in this trait. According to the data mean comparison on fertilizer levels, fosnutren liquid fertilizer was the best on chlorophyll amount before and after applying drought stress and normal water condition had the lowest mean based on chlorophyll amount. Results on data combined analysis between various research conditions indicated that fertilizer levels and genotypes, both, were significant at 1 percent. The research conditions interaction × Fertilizer levels were significant at 5 percent. Also, there was no significant difference found between research conditions and other conditions interactions.