Abstract

MAIZA, Benedicto; SILES, Melico; RIOS, Raúl  and  GABRIEL, Julio. Performance of fourteen improved pea lines (Pisum sativum L.) in Challapata zone, Oruro. J. Selva Andina Res. Soc. [online]. 2015, vol.6, n.1, pp.10-22. ISSN 2072-9294.

In Challapata zone, cultivated pea varieties are low yielding and long cycle. The research objective was to determine the performance of fourteen pea lines developed by “Pairumani Fitoecogenetics Investigation Center” (CIFP) in Challapata zone (Oruro). The 14 pea lines with local pea variety, were planted in row and column generalized experimental design with four replications in tree location randomly selection in Challapata zone (Oruro), between October 2011 and April 2012. The results indicate, that, in general, all the improved lines were superior in green pod yield to the local pea variety (3.69 t.ha-1), between 6.13 and 16.58 t.ha-1, (65.9 and 349.3%) respectively. among the improved lines, Pea5_102-1, Pea5_102-6, Pea5_102-5, Pea5_102-2, Pea5_102-3 and Pea5_102-4, with high green pod yield (13.05 and 16.58 t.ha-1), large pod (8.49 to 9.25 cm), mayor number of grains for pod (5.27 to 7.20 grains) and intermediate cycle (85 days to the floración), are the superior performance. The lines Pea5_102-14, Pea5_102-10 (Pairumani 3) and Pea5_102-13, because of their characteristics of high green pod yield, the longest pod, the mayor number of grains for pod, early maturity, preference and wide adaptability, and according to the farmer’s criteria, are the most recommend for their use in Challapata zone (Oruro).

Keywords : Yield; varieties; pod; grain; earliness.

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