Efecto de inóculo de Rhizobium en frijol común (Phaseolus vulgaris L.).

Abstract

Strains of Rhizobium CR 113; CR 477; CF-1 (equal to CIAT 151); 6bIII; 2bIII and HbI, along with noninoculated and non-nitrogenated treatments – 30 kg/ha N without inoculation and high N, 150 kg/ha N – in three environments in the Pinar del Rio, Matanzas and Holguin provinces were validated in three types of soil: ferrous quartzitic, ferrous red, and non- carbonated brown with a low total nitrogen content (less than 65kg/ha N). The BAT 58 bean variety was used. Production of aerial and nodular dry matter during the development phase (R6), production of aerial dry matter and total nitrogen consumption in the (R8) phase, and bean production in the (R9) phase, were quantified. Results showed a lower significant difference in the treatments without inoculation, as compared to the treatments with high nitrogen content and 30kg/ha N plus seed inoculation. No difference was found between the treatment with high N applications, and the ones inoculated with Rhizobium strains plus 30 kg/ha.

Geographical Distribution and New Host Associations ofRhyssomatus subtilis(Coleoptera: Curculionidae) Northwestern in Argentina

“…The damage caused during the vegetative stage of dry bean can cause the death of the plant or negatively affect its development. During the plant's reproductive stage (R8: pod fill) (Fernández et al 1986), the female weevils deposit their eggs inside the pods (Fig. 2).…”

Eficiencia en fijación biológica de nitrógeno de cepas de Rhizobium spp. recolectadas en frijol cultivado y silvestre

“…La cepa Rhizojal ZCB1 (1.21 g) también de frijol cultivado, mostró alto valor en esta variable. En evaluación de cepas por FBN, la variable PSV ha sido uno de los parámetros más utilizados y conf iables (Ferrera-Cerrato et al, 1990;Hernández et al, 1999;Mayz et al, 2010;Rahmani et al, 2011). Peso seco de raíz.…”