Resumen

CHECA CORAL, Oscar Eduardo; GETIAL PANTOJA, Jeferson Andrés  y  RODRIGUEZ RODRIGUEZ, Daniel Marino. Evaluation of eight shrub pea lines (Pisum sativum L.) in six environment of the Nariño cerealist zone. rev.udcaactual.divulg.cient. [online]. 2020, vol.23, n.1, e1211.  Epub 30-Jun-2020. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v23.n1.2020.1211.

The shrub pea has potential characteristics for agroindustry and fresh trade and can be an alternative for the cereal zone of Nariño. The present investigation was carried out in two municipalities (Yacuanquer and Guaitarilla) belonging to the Nariño cereal zone during three sowing seasons in 2.017; the combination of the localities by the times was the six environments studied. Eight shrub pea lines were evaluated by number of pods per plant, adaptability and phenotypic stability to yield in green pod and reaction to foliar diseases. The number of pods stood out GRICAND404 and GRICAND402. The analysis of adaptability and phenotypic stability made it possible to identify the favorable environments for Yacuanquer april, Guaitarilla april and Yacuanquer march; GRICAND405 with an average yield of 9.27t.ha-1 was considered the adaptable and predictable line in the six environments evaluated and GRICAND406 with 9.07t.ha-1 was predictable and showed better adaptation to the most favorable environments. In reaction to diseases, all the lines were susceptible to attack by the Ascochyta complex and the percentage of infestation of the disease was greater in very rainy seasons such as season 1 (march sowing) and decreased in dry seasons such as season 3 (planting of may), the attack of Oídio was evidenced mainly in the period of least precipitation (season 3), being resistant the GRICAND402 line.

Palabras clave : lines; meteorological factors; adaptability; genetic stability; reactions to diseases.

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