By use of the Southern blot hybridization technique the extent of DNA homology was determined between the Nif plasmid of a number of fast-growing Rhizobium species and Ti plasmids of the octopine (pTiAch5) and nopaline (pTiC58) type. DNA sequences common to these plasmids were located on functional maps of the Ti plasmids. No homology between Nif plasmids and the T region of Ti plasmids was det...

The Experiment was conduct at Crop Research Farm, Department of Agronomy during Rabi season 2022 on Lentil crop. treatment consisted three level Biofertilizer Rhizobium, PSB and Rhizobium + Phosphorus (30, 40 50 kg/ha) control. experiment layout in Randomized Block Design (RBD) with 10 replicated thrice. soil the experimental area sandy loam pH (8.0), EC (0.56 dS/m), Organic Carbon (0.62%), ava...

Preferential rewarding of more beneficial partners may stabilize mutualisms against the invasion of less beneficial, that is cheater, genotypes. Recent evidence suggests that both partner choice and sanctioning may play roles in preventing the invasion of less-beneficial rhizobia in legume-rhizobium mutualisms. The importance of these mechanisms in natural communities, however, remains unclear....