Yield stability of sweet cassava cultivars from Paraná State
DOI:
https://doi.org/10.5433/1679-0359.2007v28n4p551Keywords:
Sweet-cassava, Adaptability, Storage roots yield, Harvest index.Abstract
The objective of this work was to study the storage roots yield and harvest index stability of 14 sweet cassava cultivars collected from Paraná State. Trials were carried out in Maringá (2001/2002 and 2002/2003) and Campo Mourão (2003/2004 and 2004/2005) counties, Northwest region of Paraná State, making a total of four environments. Randomized complete blocks design with three replications was used. The stability was evaluated according methods proposed by Lin e Binns, Eskridge and Annicchiarico. The Caipira, Fécula Branca and Amarela 2 cultivars were the most stable cultivars and showed high storage roots yield and harvest index averages. These cultivars may be a good crop choice in Northwestern region of Paraná State because they also presented low content of HCN, fast cooking time and high level of diseases resistance.
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