Morphoagronomic characterization of Cuban potato (Solanum tuberosum L.) germplasm. Evaluation of cultivated accessions. Part II
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Abstract
seasons, 288 cultivated accessions from the Cuban potato
germplasm were studied at the National Institute of Agriculture
Sciences. A morphoagronomic characterization for these
accessions was conducted, including the following qualitative
characters: tuber shape, tuber colour and eye depth as well as
the quantitative ones as: yield per plant (t.ha
-1
), average tuber
weight, tuber number per plant and stem height. Also, its
behaviour versus A. solani and potato leaf roll virus (PLRV)
was evaluated. The qualitative characters are presented by its
percentage within the collection. With regard to the quantitative
ones, the descriptive statistics as media, maximum and minimum
values, standard deviation and coefficient of variation were
determined. A main components analysis was performed to
know the distribution of each species within the collection
and its possible use in Cuban potato breeding program. A
high variability was recorded among the cultivated species
collection for the environmental conditions of Cuba; and the
resistant sources for A. solani and PLRV. This work proved
there is an extend gene pool in this collection, to be more
efficiently used in Cuban potato breeding program.
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