Cassava Yield, Garrification Traits and Economic Returns as Influenced by Different Genotypes in an Ultisol  

作　　者：Nyaudoh Ndaeyo Justina U. Okon Chiedozie N. Egesi Okechukwu N. Eke-Okoro Francis O. Ogbe Nyaudoh Ndaeyo;Justina U. Okon;Chiedozie N. Egesi;Okechukwu N. Eke-Okoro;Francis O. Ogbe(Department of Crop Science, University of Uyo, Uyo, Nigeria;National Root Crops Research Institute, Umudike, Nigeria)

机构地区：[1]Department of Crop Science, University of Uyo, Uyo, Nigeria [2]National Root Crops Research Institute, Umudike, Nigeria

出　　处：《American Journal of Plant Sciences》2022年第6期744-755,共12页美国植物学期刊（英文）

摘　　要：Field trials were conducted at the University of Uyo Teaching and Research Farm in 2009/2010 and 2010/2011 to evaluate cassava yield, garrification traits, and economic returns as influenced by genotypes grown in an ultisol. Uyo is located between latitudes 4°30' and 5°27'N and longitudes 7°50'E and 80°20'E. The area, which lies within the humid tropical rainforest zone of southeastern Nigeria, has an annual mean rainfall of 2500 mm with a bimodal rainfall pattern, monthly sunshine of 3.14 hours, and a mean annual temperature of 28°C. The experimental site was previously put into cultivation of some arable crops such as fluted pumpkin, okra, and waterleaf before it was fallowed for two years. A randomized complete block design, replicated three times was used. Treatments were 16 cassava genotypes (AR1-82, NR02/0028, NR03/0174, CR12-45, NR03/0211, TMS98/2132, TMS01/1206, TMS01/1368, TMS01/1371, CR36-5, NR02/0007, NR03/0155, AR37-108, TMS01/1412, TMS30572 and local best variety “Obubit okpo”). Results obtained via combined (pooled) analysis of the two seasons indicated that cassava yield differed significantly among the genotypes. NR02/0018 (42.50 t/ha) out-yielded others by 17% - 52% followed by NR 02/0007 (35.42 t/ha), and NR 03/0155 (32.08 t/ha). TMS 98/2132 had the most preferred garrification attributes followed by NR 02/0018, NR 02/0007, and NR03/01155. NR 02/0018 genotype gave the highest economic returns followed by NR 02/0007 and NR03/0155. NR02/0018 superseded others in yield, garrification traits, and economic returns, which is therefore recommended.Field trials were conducted at the University of Uyo Teaching and Research Farm in 2009/2010 and 2010/2011 to evaluate cassava yield, garrification traits, and economic returns as influenced by genotypes grown in an ultisol. Uyo is located between latitudes 4°30' and 5°27'N and longitudes 7°50'E and 80°20'E. The area, which lies within the humid tropical rainforest zone of southeastern Nigeria, has an annual mean rainfall of 2500 mm with a bimodal rainfall pattern, monthly sunshine of 3.14 hours, and a mean annual temperature of 28°C. The experimental site was previously put into cultivation of some arable crops such as fluted pumpkin, okra, and waterleaf before it was fallowed for two years. A randomized complete block design, replicated three times was used. Treatments were 16 cassava genotypes (AR1-82, NR02/0028, NR03/0174, CR12-45, NR03/0211, TMS98/2132, TMS01/1206, TMS01/1368, TMS01/1371, CR36-5, NR02/0007, NR03/0155, AR37-108, TMS01/1412, TMS30572 and local best variety “Obubit okpo”). Results obtained via combined (pooled) analysis of the two seasons indicated that cassava yield differed significantly among the genotypes. NR02/0018 (42.50 t/ha) out-yielded others by 17% - 52% followed by NR 02/0007 (35.42 t/ha), and NR 03/0155 (32.08 t/ha). TMS 98/2132 had the most preferred garrification attributes followed by NR 02/0018, NR 02/0007, and NR03/01155. NR 02/0018 genotype gave the highest economic returns followed by NR 02/0007 and NR03/0155. NR02/0018 superseded others in yield, garrification traits, and economic returns, which is therefore recommended.

关 键 词：CASSAVA GENOTYPES YIELD Garrification Traits Economic Returns 

分 类 号：S53[农业科学—作物学]