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A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life. Leaf size reached a max 4 mo after planting and then d...


Cock, James H.Franklin, D.Sandoval, GJuri, P.[La planta ideal de yuca para obtener rendimientos máximos]La planta ideal de yuca para obtener rendimientos máximos

Twelve cassava genotypes were evaluated in the field in two cropping seasons at two locations in Nigeria for their reaction to cassava mosaic disease (CMD), cassava bacterial blight (CBB) and cassava green mite (CGM), using visual injury scores as the index for resistance. Lowest indices for CMD ...


Akparobi, S.O.Togun, A.O.Ekanayake, I.J.[Assessment of cassava genotypes for resistance to cassava mosaic disease, cassava bacterial blight and cassava green mite at a lowland and mid-altitude site in Nigeria]Assessment of cassava genotypes for resistance to cassava mosaic disease, cassava bacterial blight and cassava green mite at a lowland and mid-altitude site in Nigeria

Striga hermonthica, an obligate root parasite of grasses, is one of the most severe constraints to cereal production in sub-Saharan Africa. In the recent past, prior to increased production pressure on land, S. hermonthica was controlled in African farming systems by prolonged crop rotations with...


Berner, D.A.Carsky, R.Dashiell, Kenton E.Kling, J.Manyong, Victor M.[A land management based approach to integrated Striga hermonthica control in subSaharan Africa]A land management based approach to integrated Striga hermonthica control in subSaharan Africa

The cassava mealybug (CM), Phenacoccus manihoti Mat.‐Ferr., is a dry season pest of cassava, Manihot esculenta Crantz. Its effects on the patterns of dry matter production and allocation in cassava planted July, September 1982 and May 1983 and grown for 12 months was studied. Peak CM population d...


Schulthess, F.Baumgaertner, J.U.Delucchi, V.Gutierrez, A.P[The influence of the cassava mealybug Phenacoccus manihoti Mat. Ferr. (Hom., Pseudococcidae) on yield formation of cassava, Manifhoti esculenta Crantz]The influence of the cassava mealybug Phenacoccus manihoti Mat. Ferr. (Hom., Pseudococcidae) on yield formation of cassava, Manifhoti esculenta Crantz

Cassava roots are complex structures comprising several distinct types of root. The number and size of the storage roots are two potential phenotypic traits reflecting crop yield and quality. Counting and measuring the size of cassava storage roots are usually done manually, or semi-automatically...


Atanbori, JohnMontoya-Pizarro, Maria ElkerSelvaraj, MichaelFrench, Andrew P.Pridmore, Tony P.[Convolutional Neural Net-Based Cassava Storage Root Counting Using Real and Synthetic Images]Convolutional Neural Net-Based Cassava Storage Root Counting Using Real and Synthetic Images

Vascular wilt of banana and plantains, also known as Moko disease, is caused by Ralstonia solanacearum (Rs) phylotype II, and is the main bacterial disease affecting these crops in the Americas. Upon comparative sequence analysis of 44 Rs genomes we developed an improved PCR protocol based on the...


Pardo, Juan ManuelLópez-Alvarez, DianaCeballos, GermanÁlvarez, ElizabethCuéllar, Wilmer J.[Detection of Ralstonia solanacearum phylotype II, race 2 causing Moko disease and validation of genetic resistance observed in the hybrid plantain FHIA-21]Detection of Ralstonia solanacearum phylotype II, race 2 causing Moko disease and validation of genetic resistance observed in the hybrid plantain FHIA-21

Seedling root phenotypes may have important impacts on fitness and are more easily measured than mature root phenotypes. We phenotyped the roots of 577 genotypes of common bean (Phaseolus vulgaris), representing the bulk of the genetic diversity for recent cultivars and landraces in this species....


Strock, Christopher F.Burridge, JamesMassas, Anica S.F.Beaver, James S.Beebe, Stephen E.Camilo, Samuel A.Fourie, DeidreJochua, CelestinaMiguel, MagalhaesMiklas, Phillip N.Mndolwa, EninkaNchimbi-Msolla, SusanPolania, JosePorch, Timothy G.Rosas, Juan CarlosTrapp, Jennifer J.Lynch, Jonathan P.[Seedling root architecture and its relationship with seed yield across diverse environments in Phaseolus vulgaris]Seedling root architecture and its relationship with seed yield across diverse environments in Phaseolus vulgaris

Abstract Background and Aims The perennial C4 grass Urochloa humidicola is widely planted on infertile acidic and waterlogging-prone soils of tropical America. Waterlogging results in soil anoxia, and O2 deficiency can reduce nutrient uptake by roots. Interestingly, both nutrient deficiencies and...


Jiménez Serna, Juan de la CruzKotula, LukaszVeneklaas, Erik J.Colmer, Timothy D.[Root-zone hypoxia reduces growth of the tropical forage grass Urochloa humidicola in high-nutrient but not low-nutrient conditions]Root-zone hypoxia reduces growth of the tropical forage grass Urochloa humidicola in high-nutrient but not low-nutrient conditions

Plasma membrane proteins constitute a very important class of proteins. They are involved in the transmission of external signals to the interior of the cell and selective transport of water, nutrients and ions across the plasma membrane. However, the study of plasma membrane proteins is challeng...


García, S.Panis, B.Swennen, R.L.Carpentier, S.[Evaluation of four different strategies to characterize plasma membrane proteins from banana roots]Evaluation of four different strategies to characterize plasma membrane proteins from banana roots

The symptoms caused in cassava by Scytalidium sp. and Diplodia manihotis are described and compared. NE Brazil and the northern coast and Valle del Cauca of Colombia are zones with appropriate ecological characteristics for an optimum disease development. Scytalidium sp. affected both roots and s...


Bejarano, C.A.Laberry, R.Orrego, A.Lozano, J.C.[La pudricion negra de la yuca (Manihot esculenta) causada por Scytalidium sp]La pudricion negra de la yuca (Manihot esculenta) causada por Scytalidium sp

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