Assessment of Symbiotic Effectivenes's of Advanced Generation Mutants of Fenugreek (Trigonella foenum graecum Linn.) Selected for Higher Yield

Abhay Dashora; K Ramkrishna; G R Choudhary; Navindra Saini

doi:10.56093/aaz.v41i2.65739

Authors

Abhay Dashora Department of Plant Breeding and Genetics. SKN College of Agriculture. Rajasthan Agricultural University. Jobner 303 329, India
K Ramkrishna Department of Plant Breeding and Genetics. SKN College of Agriculture. Rajasthan Agricultural University. Jobner 303 329, India
G R Choudhary Department of Plant Breeding and Genetics. SKN College of Agriculture. Rajasthan Agricultural University. Jobner 303 329, India
Navindra Saini Department of Plant Breeding and Genetics. SKN College of Agriculture. Rajasthan Agricultural University. Jobner 303 329, India

https://doi.org/10.56093/aaz.v41i2.65739

Abstract

A study was conducted under controlled conditions to assess symbiotic efficiency of eight advanced generation (M6 to Mg) mutants of fenugreek variety. RMt- L basically selected for higher yield. The mutants significantly differed for the nodule traits. but showed no ditTerence for nitrogen content per plant when inoculated with Rhizobium meliloti FR-9. Also. these mutants did not differ significantly for their ability to use combined nitrogen (20 mM KN03). Two mutants namely 95-2 and 54-3 identitied as nitrate tolerant mutants for nodulation, were evaluated in tield under various regimes of fertilizer nitrogen, ranging from no nitrogen to 60 kg N ha,l. The two mutants were stable for nodulation irrespective ~f application of fertilizer nitrogen. While mutant 54-3 out-yielded parent and mutant 95-2. the biologi'cal yield of the three host genotypes was statistically at par.