Nodulation and early growth of faba bean (Vicia faba L.) and pea (Pisum sativum L.) as affected by strain of Rhizobium, NO3- supply, and growth temperature.
1989
Herdina | Silsbury J.H.
The effectiveness of each of 2 strains of Rhizobium, TA 101 and SU 391, on 'Fiord' faba bean and on 2 cultivars of pea 'A102' and 'Early Dun' was estimated in pot experiments. Plants were grown either without nitrate - or with up to 7.5 mM nitrate - and at 10, 15, and 20 deg C to assess the effects of mineral nitrogen and of temperature on plant growth, nodulation, and nitrogen fixation (acetylene reduction). The strains TA 101 and SU 391 were slow to nodulate 'Fiord' faba bean (up to 50 days from sowing) but were rapid (20 days) on pea. Nodule development in 'Fiord' inoculated with SU391 was slightly stimulated in the presence of 2.5 mM nitrate. Seedling growth and nodulation were poorer at 10 deg C than at either 15 or 20 deg C in both faba bean and pea. Nodulation of 'Fiord' was markedly reduced by the low temperature. Poor seedling growth due to poor nodulation with these inoculants may be compensated for by soil mineral nitrogen. Concentrations of soil NO3-equivalent to 2.5 to 5.0 mM, however, may depress the capacity of both faba bean and pea to fix nitrogen in the field.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Wolters Kluwer