Effectiveness of three inoculation methods for lucerne ( Medicago sativa L.) in two Canterbury soils.

Autor: Wigley, K, Liu, WYY, Khumalo, Q, Moot, DJ, Brown, DS, Ridgway, HJ
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Zdroj: New Zealand Journal of Agricultural Research; Sep2015, Vol. 58 Issue 3, p292-301, 10p
Abstrakt: The efficacy of ALOSCA®, coated and peat seed inoculant treatments on the nodulation of lucerne sown in two soils in Canterbury, New Zealand was investigated. The commercial inoculant wasSinorhizobium melilotistrain RRI128. It was recovered from the nodules of lucerne plants grown from ALOSCA®, peat and coated seed at both sites. Coated seed had the highest nodule occupancy with 45% and 47% of nodules containingS. melilotistrain RRI128 at the Ashley Dene and Lincoln University field sites, respectively. ALOSCA®had only 9% and 16% of nodules from the Ashley Dene and Lincoln University field sites, respectively, containingS. melilotistrain RRI128. NaturalisedRhizobiumstrains were also recovered from the nodules of lucerne plants grown from ALOSCA®, coated and peat seed inoculant treatments. A single genotype (genotype A) of aRhizobiumsp. was recovered more frequently than the inoculatedS. melilotistrain in the nodules of plants grown from peat treated seed at Lincoln University (30% vs 22%) and in the nodules of ALOSCA®treated seed at Ashley Dene (54% vs 9%). Bare seed was also nodulated by theRhizobiumsp. genotype A with 57% and 28% of nodules from plants grown from uninoculated seed at Ashley Dene and Lincoln University, respectively, containing this strain. This research shows delivery by an appropriate inoculation treatment is required to maximise occupancy by the commercial strain. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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