eprintid: 6978 rev_number: 13 eprint_status: archive userid: 227 dir: disk0/00/00/69/78 datestamp: 2014-01-12 08:32:46 lastmod: 2014-02-07 06:02:59 status_changed: 2014-01-12 08:32:46 type: article metadata_visibility: show creators_name: Nambiar, P.T.C. creators_name: Ravishankar, H.N. creators_name: Dart, P.J. icrisatcreators_name: Nambiar, P T C icrisatcreators_name: Ravishankar, H.N. icrisatcreators_name: Dart, P.J. affiliation: ICRISAT(Patancheru) country: India title: Effect of Rhizobium Numbers on Nodulation and Dinitrogen Fixation in Groundnut ispublished: pub subjects: s1.3 full_text_status: restricted keywords: Rhizobium, Nodulation, Dinitrogen Fixation, Groundnut abstract: In greenhouse studies, shoot and nodule wt./plant of groundnut cv. Kadiri 71-1 increased with increase in inoculum density from 6.1 × 10² to 3.2 × 109 rhizobia/seed. In a 2nd experiment with cv. Robut 33-1 and TMV2 inoculated with 2 Rhizobium strains, number of nodules/plant increased from 6-11 at 2.7 × 10² to 143-243 at 2.7 × 108 rhizobia/seed but N2 fixation at 106 rhizobia/seed was close to that at 108. Strain 5a/70 fixed more N2 at a given inoculum density than strain NC92.ADDITIONAL ABSTRACT:In greenhouse studies, seedlings of three cultivars were inoculated with Rhizobium at four inoculum densities (102-109 rhizobia/seed). Robut 33-1 and TMV2 required 106 rhizobia/seed for maximum nodulation and nitrogen fixation, while Kadiri 71-1 required larger numbers. date: 1983 date_type: published publication: Experimental Agriculture volume: 19 number: 3 publisher: Cambridge University Press pagerange: 243-250 refereed: TRUE issn: 0014-4797 official_url: http://dx.doi.org/10.1017/S0014479700022766 citation: Nambiar, P.T.C. and Ravishankar, H.N. and Dart, P.J. (1983) Effect of Rhizobium Numbers on Nodulation and Dinitrogen Fixation in Groundnut. Experimental Agriculture, 19 (3). pp. 243-250. ISSN 0014-4797 document_url: http://oar.icrisat.org/6978/1/Expl-Agric_19_243-250_1983.pdf