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Biofertilizers and/or some micronutrients role on wheat plants grown on newly reclaimed soil
Author(s) -
Eleiwa Mona E.,
Hamed Eman R.,
Shehata Heba Sh.
Publication year - 2012
Publication title -
african journal of ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.499
H-Index - 54
eISSN - 1365-2028
pISSN - 0141-6707
DOI - 10.1111/j.1365-2028.2012.01342.x
Subject(s) - biofertilizer , azotobacter chroococcum , inoculation , nutrient , horticulture , shoot , sugar , micronutrient , chemistry , agronomy , biology , food science , organic chemistry
Pot experiment was conducted to study the effect of biofertilizers (inoculation with different bacterial isolates), foliar spraying with some micronutrients ( Mn , Zn , Fe and Mn+Zn+Fe ) and their interaction on growth, physiological parameters and nutrients content of wheat plants grown on reclaimed soil. Pot experiment was conducted in the greenhouse of N ational R esearch center, The experimental design was split plot with four replicates. Four biofertilizer treatments (un‐inoculated, B acillus polymyxa , A zotobacter chroococcum or A zosprillium barasilense ) were used and randomly distributed in the main pots. The foliar treatments with micronutrients were randomly distributed in the sub plots. The growth parameters (plant height, leaf area, roots, shoots and whole plant dry weights and number of tillers & leaves per plant); some physiological parameters (soluble sugar %, protein %, polysaccharide %, chl. A+b μg cm −1 leaf per plant, carotenoids μg g −1 , IAA mg kg −1 and psll mol DCPIP reduced per mg chl. per h) and nutrient contents ( N , P , K , Mg , Mn , Zn and Cu ) of wheat plants were significantly increased by inoculating wheat grains with different bacteria as compared with un‐inoculated plants (control). The highest values of all the mentioned parameters were obtained by using A zospirillum brasilense followed by A zotobacter chroococcum and B acillus polymyxa in decreasing order. Foliar spraying treatments significantly increased the growth parameters, physiological parameters as well as nutrients content of wheat plants as compared with control. Highest values were obtained by using ( Mn+Fe+Zn ) treatment followed by Zn , Fe and Mn in decreasing order. Micronutrients in wheat plants differed as the foliar treatments were differed, so application of any micronutrient individually significantly increased its content and enhanced the content of other micronutrients in wheat. Interaction between the used biofertilizers and foliar spraying with micronutrients significantly affected all the studied parameters of wheat plants, the highest were obtained by inoculating wheat grains with A zospirillum brasilense and spraying the plants with ( Mn+Fe+Zn ) treatment, while the lowest values were attained by un‐inoculated grains (control) and spraying the wheat plants with tap water (control). Effective microorganisms in combination with micronutrients could be recommended to farmers to lead higher wheat yield.