ENHANCING DROUGHT TOLERANCE IN WHEAT USING ENCAPSULATED LELLIOTTIA AMNIGENA MSR M49

Abstract

Drought is considered one of the most important stresses that raise concern and is responsible for changes in the soil that have an impact on living organisms and plants. In a three –factor field experiment, encapsulated PGPR Lelliottia amnigena MSR-M4 was used to study the effect of their bio-inoculation on two wheat resistance Shandawil 1 and sensitive Gemmeiza 12 varieties under 80% and 60% from crop evapotranspiration (ETC). The results showed that drought conditions led to a decrease in the total chlorophyll and carotenoids but the values of pigment contents increased with encapsulated PGPR inoculants. Inoculation with PGPR Lelliottia amnigena MSR-M4 enhanced the IAA and ABA content in shoots of two genotypes wheat plants especially in genotype Gemmeiza 12. Application of encapsulated Lelliottia amnigena MSR-M4 achieved the lowest ethylene content compared to un-inoculated wheat; there is also higher reduction of proline accumulation in two verities of wheat plants and achieved higher relative water content under 80% and 60% from ETC.As well as there is an improvement in yield-related traits and wheat productivity due to the improvement in dehydrogenase soil enzyme. Accumulative of ant oxidative enzymes in wheat can be indication of their relative tolerance to drought stress. Encapsulated MSR-M4 approves greater enhancement in yield-related quality of wheat productivity, as well as (N, P, and K %) in grains of two genotype wheat plants.