Drought response of onion (Allium cepa L.) varieties using different selection indexes

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Published: Mar 15, 2016
Keywords:
Allium cepa, drought susceptibility, drought tolerant, varieties

Main Article Content

Wilfredo Estrada Prado

Abstract

The water deficit tolerance of five onion varieties was evaluated in an experiment carried out between the years 2009-2010 at “Jorge Dimitrov” Agricultural Research Institute, Bayamo municipality, Granma province, Cuba. Three soil moisture levels were evaluated: 100, 75 and 50 %. 15 treatments were used, distributed in a completely randomized design and 30 plants were selected at random from each treatment where indexes were evaluated: Yield losses (YL), geometrical mean productivity (GMP), mean productivity (MP), relative efficiency index (REI), drought tolerant index (DTI), stability yield index (SYI), susceptibility drought index (SDI), harmonic mean (HM) and tolerance (TOL). The results showed that the soil water deficits evaluated have a significative (p≤0,05), where Grano-2000 F1 showed the most tolerant water deficit variety, while H-222 was the most susceptible variety. All the drought indexes evaluated have a high contribution on the total phenotypic variability.

Article Details

How to Cite
Estrada Prado, W. (2016). Drought response of onion (Allium cepa L.) varieties using different selection indexes. Cultivos Tropicales, 36(3), 75–81. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/1044
Issue
Vol. 36 No. 3 (2015)
Section
Original Article

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