MESORHIZOBIUM CICERІ ND-64 STRAIN — EFFECTIVE MICROSYMBIONT OF MODERN CHICKPEA VARIETIES

Objective. Study the competitiveness, complementarity and symbiotic activity of a new strain chickpea nodule bacteria Mesorhizobium ciceri ND-64, study influence seed inoculation on productivity yield varieties Ukrainian selection under their cultivation in different soil climatic zones Ukraine. Methods. Serological, gas chromatography, field experiment statistical. Results. The use M. ND-64 for pre-sowing bacterization seeds Skarb, Admiral, Odysei, Budzhak, Triumf Pamiat upon growing experiments Steppe zone against background local population contributes to significant increase nitrogen-fixing nodules by 5 % 67 %, an mass 10 nitrogenase 26 150 compared with positive control (inoculation reference H-12). ND- 64 Ukraine also had effect increasing — 4 18 control. Inoculation contributed formation higher number (by 57 89 %), increaseed (2.2–2.9 times) (2–4 Polissia fields where there is no rhizobia. Under these conditions, structural parameters yield, highest gain photosynthetic protein content grain was shown. Obtaining specific antisera immunization rabbits allowed detect serological relatedness H-101, sp. ND-601 isolated from Skarb varieties. competitiveness determined using immunological method experiment. It found that 100 have been formed representatives variant this group applied were serogroup. Conclusion. effective microsymbiont plants, due its virulence, properties. According results experiments, it shown strain, complementary all studied differing size shape, type bush average height, forms symbiosis plants both active rhizobia absence cicerі soil. Symbiotic treatment suspension exceed values variants H-12 strains each variety. Therefore, can be used as bioagent microbial preparation order form bean-rhizobial symbiosis, culture improve quality.