Physiological quality of corn seeds reinoculated with diazotrophic bacteria

Abstract

This work aimed to evaluate physiological characteristics of corn seeds provenient from cultivation associated with Azospirillum brasilense and Herbaspirillum seropedicae and reinoculated with Azospirillum brasilense . The seeds were coming from cultivation in field conditions, and the treatments were: T1 - control; T2 - 60 kg hectare -1 N, T3 - inoculation ( Azospirillum brasilense - AbV5); T4 - inoculation ( Azospirillum brasilense ) + 60 kg hectare -1 N; T5 - inoculation ( Herbaspirillum seropedicae - SMR1) and T6 - inoculation ( Herbaspirillum seropedicae ) + 60 kg hectare -1 N. The treatments were divided in two separate blocks, being one reinoculated with A. brasilense (AbV5). The experimental design was completely randomized, in factorial scheme (6x2), being six treatments inoculated and reinoculated. The seeds reinoculated showed greater length, volume and dry matter of root and aerial part, concluding that the seeds reinoculation promotes an increase in initial seedling growth.