The arbuscular mycorrhiza (Glomus fasciculatum) in the symbiotic absorption of phosphorus with native potato varieties

Abstract

In order to determine the effect of arbuscular mycorrhiza (MA) and phosphorus levels Glomus fasciculatum on the development and productivity of five native potato varieties. The experimental design that was used was that of Complete Random Blocks (BCA), with structured 6x2x3 treatments with 3 repetitions. The native potato varieties had different responses to both inoculation with G. fasciculatum, and phosphorus. The root length increased linearly in the Malkacho varieties 1 (63.7 cm), Poland (51.75 cm), Wayca (50.25 cm) and Yuraj Imilla (52.8 cm). The yield was higher with the inoculation of 100 kg/h of mycorrhiza G. fasciculatum (5.41 tn/h), with the varieties with the highest yielding Malkacho varieties (7.02 tn/h) and Malkacho 2 (7.14 tn/h). The variables frequency of colonization (%), number of spores, fresh foliage weight was higher with the application of 100 kg/h of the G. fasciculatum mycorrhiza, in the varieties Malkacho 1 (29.35%), Malkacho 2 (31.62 %), Yuraj imilla (29.16%) and Yana Runa (28.70%). The phosphorus affected the frequency of colonization (%) and the number of spores decreased by doses greater than 60 kg/h and 65 kg/h, respectively.

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