Arid climate has contributed to crops yield production decrement in many regions due to water shortage and soil salinization. The main target of this research is to enhance wheat production under arid climate stresses by utilizing bio-elicitors. Two common wheat assortments i. e. cv. Gemmiza 10 and Sakha 93 accomplished tolerant to these stresses utilizing bio elicitors include Acremonium coenophiulum, Streptomyces griseus, Trichoderma harzanium, T. viride, Rhodotorula glutinis, Paenibacillus polymyxa, Bacillus subtilis, B. megaterium, Pseudomonas putida, P. fluorescens compared with natural elicitors as methyl jasmonate (MJ), chitosan (CHI), ascorbic acid and putrescein (PUT). Varieties were planted in two progressive seasons in recently reclaimed lands, where two fields were selected the first is located in North Sinai while the second is situated to the south of Behira Governorate. Bio elicitors reduced abiotic stress and enhance physiological characteristic expressed as Proline, soluble carbohydrates %, Chl.a, Chl.b, Chl.a + b; Chl.a/Chl.b; Carotenoids and increased the concentration of Crude protein, N, P and total soluble carbohydrates in wheat grains. Using P. fluorescens exhibted increment in grain yield of wheat plants, cv sakha 93 amounted by 68.3% in Sinai region, while in Behira region the increement reached (45.5%) with P. polymyxa treatment. The response of Gemmiza 10 variety to the Bio-elicitors was less compared to Sakha 93 variety in both regions, where the highest increments due to P. putida treatment were18.9 and 19.7% in Sinai and beheirwa regions, respectively, compared to the control in each region. A remarkable increments of wheat growth, development and extended survival under salt and water limiting and restricting conditions. These findings demonstrate that wheat plants can display improved stress tolerance through bio-elicitors, and recommend that innovation may be useful in reducing effects of climate change and environmental stress on other crops and expanding agricultural production onto marginal lands.
Gesunde Pflanzen – Springer Journals
Published: Aug 4, 2017
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