Possible alternative utilization of Cynara spp. I. Biomass, grain yield and chemical composition of grain
1999
Foti, S. | Mauromicale, G. | Raccuia, S.A. | Fallico, B. | Fanella, F. | Maccarone, E.
Globe artichoke (Cynara scolymus L.) and cultivated cardoon (C. cardunculus L. var. altilis DC.) are horticulturally important crop plants. These species have potential as biomass and oilseed crops. We field tested, for 3 years, two artichoke and two cardoon cultivars and one wild cardoon (C. cardunculus L. var. sylvestris Lam.) population on the Sicilian plain of Catania (37 degrees 27' N, 15 degrees 04' E, 10 m a.s.l.). On a 3-year average, the dry aboveground biomass resulted about 31 t ha-1 in both cultivated cardoons, 18.8 t ha-1 in wild cardoon, 13.7 t ha-1 in globe artichoke '3/10 V.S.' and 9.9 t ha-1 in globe artichoke '374' F1. The caloric values of aboveground biomass (except for seeds), which was not significantly different among genotypes, ranged between 16005 and 17028 KJ kg-1 of dry matter. The cultivated cardoon 'Gigante di Lucca' had the greatest grain yield (on 3-year average, 2.6 t ha-1), whereas the two-globe artichokes had the lowest yield (on 3-year average, 0.5 t ha-1). Regardless of genotypes and years, the grains contain 20.1% crude protein, 24.4% oil, 18.5% crude fiber and 4.1% ash (dry weight basis). The grains of globe artichokes showed the highest crude protein content (21.6%), whereas those of cardoons the highest oil content (25.2%).
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