{"title":"Effets de l’ecimage sur la performance a l’entreposage des tubercules de macabo (Xanthosoma sagittifolium L.)","authors":"René M. Bikomo, A. Akoa","doi":"10.4314/CAJEB.V10I1.3","DOIUrl":null,"url":null,"abstract":"L’effet de l’ecimage pre recolte, (a 1 et 2 semaines respectivement avant recolte) etait teste sur le comportement en entreposage post recolte de 2 varietes de macabo ( Xanthosoma sagittifolium L. ), le blanc et le rouge, a travers un arrangement factoriel independant. Apres 3 mois d’observations, l’ecimage effectue a 2 semaines de la recolte a de maniere significative (p 0,05) sur la perte de poids, le bourgeonnement et la pourriture du macabo. L’ecimage a par ailleurs cause une reduction progressive de la teneur en amidon des tubercules du macabo blanc, s’accentuant avec la duree d’entreposage. Les tubercules provenant des plantes ecimees 2 semaines avant la recolte ont fait l’objet d’une accumulation plus elevee de sucres totaux en comparaison les niveaux enregistres dans les produits preleves des plantes ecimees 1 semaine plus tard et dans les tubercules des plantes non ecimees. L’ecimage a egalement, independamment la variete, contribue a une amelioration significative (p 0,05) on weight loss, sprouting, and rotting of cocoyam. Moreover, pruning has induced an increasing reduction in starch content of white cocoyam, with storage duration. During shelflife period, a higher total sugars accumulation was recorded on corms from plants pruned 2 weeks before harvest in comparison with that on corms harvested 1 week after pruning and from unpruned plants. A significant improvement (p<0,05) has been obtained on organoleptic quality of corms as a result of pruning, independently of the variety of cocoyam, with higher and comparable preference records of 56,44 % and 59,83 % attributed to tubers from plants pruned 2 and 1 week respectively before harvest. Likewise, a record of 48,25 % was given to tubers from control plants. Keywords : Xanthosoma, variety, pruning, storage, quality","PeriodicalId":9401,"journal":{"name":"Cameroon Journal of Experimental Biology","volume":"28 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cameroon Journal of Experimental Biology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/CAJEB.V10I1.3","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
L’effet de l’ecimage pre recolte, (a 1 et 2 semaines respectivement avant recolte) etait teste sur le comportement en entreposage post recolte de 2 varietes de macabo ( Xanthosoma sagittifolium L. ), le blanc et le rouge, a travers un arrangement factoriel independant. Apres 3 mois d’observations, l’ecimage effectue a 2 semaines de la recolte a de maniere significative (p 0,05) sur la perte de poids, le bourgeonnement et la pourriture du macabo. L’ecimage a par ailleurs cause une reduction progressive de la teneur en amidon des tubercules du macabo blanc, s’accentuant avec la duree d’entreposage. Les tubercules provenant des plantes ecimees 2 semaines avant la recolte ont fait l’objet d’une accumulation plus elevee de sucres totaux en comparaison les niveaux enregistres dans les produits preleves des plantes ecimees 1 semaine plus tard et dans les tubercules des plantes non ecimees. L’ecimage a egalement, independamment la variete, contribue a une amelioration significative (p 0,05) on weight loss, sprouting, and rotting of cocoyam. Moreover, pruning has induced an increasing reduction in starch content of white cocoyam, with storage duration. During shelflife period, a higher total sugars accumulation was recorded on corms from plants pruned 2 weeks before harvest in comparison with that on corms harvested 1 week after pruning and from unpruned plants. A significant improvement (p<0,05) has been obtained on organoleptic quality of corms as a result of pruning, independently of the variety of cocoyam, with higher and comparable preference records of 56,44 % and 59,83 % attributed to tubers from plants pruned 2 and 1 week respectively before harvest. Likewise, a record of 48,25 % was given to tubers from control plants. Keywords : Xanthosoma, variety, pruning, storage, quality