Abstract

PENTON, Gertrudis et al. Use of EcoMic® and the bioactive product Pectimorf® in the establishment of two forage species. Pastos y Forrajes [online]. 2011, vol.34, n.3, pp. 281-294. ISSN 0864-0394.

In order to evaluate the effect of EcoMic®, Pectimorf® and/or their combination on the establishment of the forage species Morus alba L. (mulberry) and Sorghum bicolor L. (sorghum), two trials were conducted. The first one was done with M. alba, inoculated or not with AMF, and the plant yield and survival variables were evaluated after 90 and 240 days. The experiment with S. bicolor was conducted for 30 days after planting and seed germination and yield variables were evaluated after 7, 15 and 30 days. The treatments were: control, inoculation with AMF, imbibition in Pectimorf, and their combination. A randomized block design was used, with three repetitions. Response of mulberry to the inoculation with AMF was obtained after 90 days of establishment, in terms of green weight of the rootlets and roots, which tripled the results of the control. After 240 days the inoculated plants doubled the yield of the control and there were no significant differences in survival, increase of edible biomass per leaf area unit, or relationship of the assimilative system per edible biomass unit. In sorghum, the combined use of Pectimorf® and EcoMic® produced a significant increase, as compared to the control, in seed germination 30 days after planting (89 vs 58%), effective height (4,04 vs 3,55 cm), stem base diameter (0,18 vs 0,15 cm), leaf blade area, number of open leaves (4 vs 3) and leaf length. The products EcoMic® and Pectimorf®, as well as their combination, are concluded to constitute an effective alternative for the establishment of the studied forage species.

Keywords : Growth; Morus alba L; Sorghum bicolor L.; yield.