The effect of innoculation with rhizospheric bacteria on two varities of wheat. Phase1: controlled conditions

Abstract

The experiment was carried out under controlled conditions to determine the response of the two wheat varieties to the simple inoculation and the combined inoculation which was carried out with Sinorhizobium, and Azospirillum. A strain of A. zeae and two strains belonging to S. meliloti were used. The materials and methods that were applied corresponded to what was described in the already established methodologies in this field of study. Experimental design: completely randomized, with 20 treatments and 4 replicas. Fertilizing treatment was not used. Different Agronomic variables were evaluated, related to the radical architecture and the biomass area. Analysis of the biofactorial variance. In the event that differences appeared, the variance analysis of a factor of first instance interaction or of approved factors was applied. Differences between methods by LSD of Fisher. Count data of digits by √x were transformed. The correlation and multiple regressions between variables were calculated. It is concluded that the combined inoculation of Sinorhizobium with Azospirillum, just like the simple inoculation with Sinorhizobium resulted to be of high importance in the inoculation alternatives that were carried out in the experiment. There was a great difference between the two wheat varieties in certain agronomical variables, which indicates a marked influence of the varietal characteristics of the plants. A strong statistical relation was observed between the variables dry air weight and the root variables for the treatments of inoculation with A2 y Av2+N7, respectively.