Yield and natural reaction to anthracnose (Colletotrichum gloeosporioides) of four yam cultivars planted without staking

被引:0
作者
Gonzalez-Velez, Agenol [1 ]
机构
[1] Dept Hort Estac Expt Agricola, Corozal, PR 00783 USA
来源
JOURNAL OF AGRICULTURE OF THE UNIVERSITY OF PUERTO RICO | 2006年 / 90卷 / 1-2期
关键词
yam; tubers; anthracnose; Colletotrichum gloeosporioides; Dioscorea alata;
D O I
暂无
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
This study evaluated marketable yield and the natural reaction to anthracnose (Colletotrichum gloeosporioides Penz) of four yam (Dioscorea alata) cultivars planted without staking: Florido, Diamantes, Forastero, and Kabusah. No significant yield differences were found among cultivars Diamantes, Forastero and Kabusah. Average marketable yields were 26,169; 25,634; and 24,750 kg/ha, respectively. These yields were significantly higher than that obtained for Florido, 2,899 kg/ha. Florldo showed the highest disease severity caused by anthracnose with 51%, 76% and 96% at four, five and six months after planting, respectively. Percentage of disease severity in Florido was significantly higher than that observed in cultivars; Diamantes, Forastero, and Kabusah.
引用
收藏
页码:75 / 81
页数:7
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