Genetic progress of oats in Italy |
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Authors: | Rita Redaelli Paolo Laganà Fulvia Rizza Orazio Li Destri Nicosia Luigi Cattivelli |
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Institution: | (1) CRA – Maize Research Station, via Stezzano 24, 24126 Bergamo, Italy;(2) CRA – Centre for Genomic Research, via S.Protaso 302, 29017 Fiorenzuola d’Arda, PC, Italy;(3) CRA – Centre for Cereal Research, S.S. 16 km 675, 71100 Foggia, Italy |
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Abstract: | The genetic gain of oats in Italy over the past 40 years was evaluated using 14 cultivars belonging to three different groups:
(i) five cultivars derived from local populations at the beginning of the oat breeding in Italy; (ii) four foreign cultivars,
introduced in Italy in the 1980s; (iii) five modern cultivars, selected through specific breeding programmes. The genotypes
were tested for 2 years in three locations characterised by different climatic conditions and agricultural practices; furthermore
in one location in Southern Italy, irrigated and rainfed plots were compared. Genetic gain was estimated equal to 3.6 g m−2 y−1 based on eight environments. The performance of the most recent cultivars was high under both irrigated and rainfed conditions,
showing a good adaptation of these genotypes to both fertile and drought prone environments. Finally, yield increase in oats
was found to be negatively correlated with plant height and positively correlated with test weight and seed weight. |
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Keywords: | Oats Drought prone environment Genetic gain Yield stability |
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