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Chloroplast DNA (cp) and nuclear ribosomal DNA (rDNA) variation was investigated in 45 accessions of cultivated and wild Manihot species. Ten independent mutations, 8 point mutations and 2 length mutations were identified, using eight restriction enzymes and 12 heterologous cpDNA probes from mung...


Fregene, Martin A.Vargas, J.Ikea, J.Angel, F.Thome, J.Asiedu, RobertAkoroda, M.O.Roca, W.[Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives]Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives

The identification of superior genotypes and mega-environments on the basis of multiple traits is a key objective of multi-environment trials in cassava (Manihot esculenta Crantz). The objective of this study was to examine the genetic variation and genotype 3 environment interaction (GEI) effect...


Egesi, Chiedozie N.Ilona, P.Ogbe, F.O.Akoroda, M.O.Dixon, A.[Genetic variation and genotype X environment interaction for yield and other agronomic traits in cassava in Nigeria]Genetic variation and genotype X environment interaction for yield and other agronomic traits in cassava in Nigeria

Cassava improvement research at the International Institute of Tropical Agriculture (I1TA) developed several new varieties during 1976-1985 that entered into the cassava culture of Oyo State of Nigeria where IITA is situated. The focus of this study was to determine the level of overall impact of...


Akoroda, M.O.Gebremeskel, T.Oyinlola, A.[Impact of IITA cassava varieties in Oyo State, Nigeria, 19761985]Impact of IITA cassava varieties in Oyo State, Nigeria, 19761985

Cassava production and utilization in Cameroon have undergone a long evolution. The post-independenceand pre-1990 eras were marked by activities that considered cassava to be a subsistence food crop. Duringthis period, farmers relied on coffee and cocoa as the major cash crops. Cassava growers us...


Ngeve, J.M.Tenku, S.N.Dixon, Alfred G.O.Whyte, J.B.A.Okechukwu, R.U.Hanna, R.Akoroda, M.O.[Boilable cassava varieties: what is their role within the context of the global agricultural economy?]Boilable cassava varieties: what is their role within the context of the global agricultural economy?

Postharvest physiological deterioration (PPD) is an unresolved major stress in cassava (Manihot esculenta Crantz), which constrains the crop suitability for commercial and industrial purposes. The present study sourced for PPD tolerance from different genetic resources available within a cassava ...


Moyib, K.O.Mkumbira, J.Odunola, O.Dixon, A.Akoroda, M.O.Kulakow, P.A.[Genetic variation of postharvest physiological deterioration susceptibility in a cassava germplasm]Genetic variation of postharvest physiological deterioration susceptibility in a cassava germplasm

The overall system for supplying plantable stems of improved cassava varieties from the International Institute of Tropical Agriculture (IITA) was surveyed for Oyo State where IITA is situated. This study examined the relation of spread of adoption of these varieties during the period of 1976 thr...


Akoroda, M.O.Oyinlola, A.E.Gebremeskel, T.[Plantable stem supply system for IITA cassava varieties in Oyo State of Nigeria]Plantable stem supply system for IITA cassava varieties in Oyo State of Nigeria

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