Abbreviation: J. Plant Breed. Crop Sci.
Start Year: 2009
Page 1 of 16, showing 20 records out of 301 total, starting on record 1, ending on 20
DOI: 10.5897/JPBCS2017.0679[Article Number: 2FF634B66195]
Fusarium related root rots have been associated with reduced cowpea productivity in Uganda. Sources of genetic resistance to Fusarium redolens which was found to be the most virulent have been identified but the mode of inheritance of the genes conferring the resistance is unknown. This study aims to investigate how the genes for resistance to F. redolens are inherited in cowpea. Four F. redolens root rot resistant... Read more.
DOI: 10.5897/JPBCS2017.0671[Article Number: 4B4D52D66197]
Forty-nine bread wheat genotypes were tested at Axum, Northern Ethiopia in 2016/17, with the objective of assessing the extent of genetic variation, correlation and path analysis of wheat genotypes in yield and grain quality traits using 7 x 7 triple lattice design. Data were collected for 17 agronomic and grain quality characters. For each of the test entries, samples of 500 g grains were taken from each plot for... Read more.
DOI: 10.5897/JPBCS2017.0649[Article Number: 12B0D9966245]
Maize is an important cereal crop in sub-Saharan Africa but production is adversely affected by maize streak virus disease (MSVD). In Ghana, re-occurrence of the disease has been reported in several regions, therefore, necessitating the development of resistant hybrids as the most sustainable and economical option. The objectives of the study were to identify parents and hybrids that combine MSVD resistance with high... Read more.
DOI: 10.5897/JPBCS2017.0657[Article Number: BA7A09765719]
Nature of gene action and genetic parameters for disease resistance are important attributes in developing resistant cultivars. This provides the sustainable, economically justifiable and environmentally friendly means of controlling plant diseases. In this study 6 x 6 full diallel cross involving genetically divergent maize inbred lines was performed with the aim of developing resistant cultivars against Maize Lethal... Read more.
DOI: 10.5897/JPBCS2017.0674[Article Number: AFCAE0D65721]
An experiment was conducted on sugarcane families belonging to the early selection stage of the Sugarcane Research Institute, Kaiyuan, Yunnan Academy, China, to evaluate them for the selection of superior families for the later stages of the breeding program. Seventy-six full-sib families and check variety were evaluated. The experiment was conducted during two growing seasons, corresponding to the plant cane and first... Read more.
DOI: 10.5897/JPBCS2016.0624[Article Number: E256D7965736]
In Ghana, the production of hybrid maize is at its infant stage, occupying only about 3% of the area devoted for maize production. Therefore, the yields of this crop are low, 1.7 t ha-1 due to the use of open pollinated varieties (OPVs), shortage of high yielding varieties, biotic and abiotic stresses. Thus, the present study was designed to identify superior crosses based on their agronomic performance. Thirty-two... Read more.
DOI: 10.5897/JPBCS2017.0663[Article Number: ED81D6B65447]
Use of morphological markers offers an alternative in germplasm discrimination of research-neglected crop species. A collection of 25 accessions including five wild progenitors was evaluated in screen house to identify the morphological difference between Solanum aethiopicum Shum and Solanum anguivi. An Unweighted Pair Group Method with Arithmetic mean hierarchical clustering revealed presence of moderate structure with... Read more.
DOI: 10.5897/JPBCS2017.0664[Article Number: 01E089865449]
The genetic improvement at Cenicafé has developed varieties with resistance to Coffee Leaf Rust (CLR) (Hemileia vastatrix) derived from the Timor Hybrid. These varieties have durable rust resistance, especially against race II, the predominant race. In Colombia, these varieties have been cultivated for three decades and still show resistance. Recently, new rust races have appeared attacking these varieties.... Read more.
DOI: 10.5897/JPBCS2017.0640[Article Number: 408D60465501]
Cowpea (Vigna unguiculata L.) is one of the most important grain legumes in the semi-arid regions of many African countries including Ethiopia. However, it is less cultivated and scarcely distributed pulse crop in Abergelle due to a lack of improved varieties. A field experiment was conducted during the 2014 and 2015 main cropping seasons using a randomized complete block design with three replications to evaluate seven... Read more.
DOI: 10.5897/JPBCS2016.0628[Article Number: BD9CA1064940]
Cowpea aphid-born mosaic virus disease (CABMV) is one of the reasons for rejection of cowpea seed by seed inspectors in Burkina Faso. With regard to this, this study was undertaken to analyze the genetic components underlying the resistance of cowpea lines to the cowpea aphid-borne mosaic virus (CABMV) and to determine the mechanism of transmission of the resistance from parents to offspring. Therefore, crosses were... Read more.
DOI: 10.5897/JPBCS2017.0641[Article Number: BC79E9964942]
Rice blast caused by Magnaporthe grisea is an economically important disease which distributed in most rice growing areas of the world. Yield losses up to 100% are attributed to the blast disease in different rice growing regions of Uganda. In order to combat this disease screening of forty-six introduced Korean rice accessions and two checks IR-64 (resistant) and NERICA-1 (susceptible) were done in a 6 by 8 alpha... Read more.
DOI: 10.5897/JPBCS2016.0598[Article Number: B7EC76E65047]
Cocoa midges [Forcipomyia sp (Diptera: Cerato-pogonidae)] are major pollinators of cocoa and it is assumed that the number of fertilized pods and the increase in bean numbers may be the approach to enhancing cocoa yield. An insect survey using suction traps was employed to estimate the midge population dynamics in three Caribbean territories. Separate studies were conducted on the cocoa floral and reproductive phenology... Read more.
DOI: JPBCS2017.0644[Article Number: 7C9F2CB64526]
Common bacterial blight (CBB) is the most serious bacterial disease of common bean in Uganda. It causes severe yield losses of up to 62%. Genetic resistance is the most effective option for controlling CBB in smallholder common bean production systems. This study was carried out to determine the inheritance pattern of CBB resistance in leaf and pod of four new resistance sources. The four resistant and four susceptible... Read more.
DOI: 10.5897/JPBCS2017.0650[Article Number: F96D88664529]
A total of 21 okra (Abelmoschus escuentus L. Moench) genotypes were screened for their reactions against okra mosaic disease (OMD) and flea beetles (Podagrica species) infestations in field trials which were conducted from May to October, 2015 (wet season) and November 2015 to March 2016 (dry season), in order to identify sources of resistance and or tolerance. The trials were laid out in a randomised complete block... Read more.
DOI: 10.5897/JPBCS2016.0620[Article Number: 5475E0863929]
Jatropha curcas is a plant with several attributes, multiples uses and considerable potentials. To mitigate the effects of climatic change, it is necessary to alleviate fossil power energy and increase biofuel energy. Plant-based fuels are among the best renewable sources, and their use can lead to a better balance of CO2 and other greenhouse gases responsible for global warming. The aim of this work was to study the... Read more.
DOI: 10.5897/JPBCS2016.0630[Article Number: 2D5501463933]
The objective of this study was to use molecular diagnostic tools to detect the agents of groundnut rosette disease (GRD) to guide in varietal development and disease management. Samples were collected from both GRD infected and healthy plants and sites geo-referenced. RNA extraction, cDNA synthesis, polymerase chain reaction (PCR) amplification, electrophoresis, staining and visualization were performed according to... Read more.
DOI: 10.5897/JPBCS2016.0613[Article Number: CDD8AFE63644]
Brown spot disease caused by Bipolaris oryzae [Breda de Haan (Shoem.)] is one of the most important diseases affecting rice (Oryza sativa L.) worldwide. Host plant resistance is considered an effective, cheap and environment friendly means of managing this disease. Nine rice genotypes with varying resistance levels were crossed in a full diallel mating design including reciprocals and parents. Parents, reciprocals and... Read more.
DOI: 10.5897/JPBCS2017.0647[Article Number: 0312D1663646]
High oil content of peanut is a crucial trait for the processing industry, especially in developing countries where most peanuts are for a major source of cooking oil. Twelve peanut (Arachis hypogaea L.) varieties were evaluated at three northern Cameroon locations for two consecutive seasons in order to estimate variability and stability of performance for seed oil content. A randomized complete block design replicated... Read more.
DOI: 10.5897/JPBCS2016.0618[Article Number: E62047563238]
Sugarcane variety development programmes primarily envisage breeding of varieties with high cane yields and high sugar content in specific environmental conditions. Key components associated with sugar yields are tonnes of cane per hectare and sucrose content. A study was undertaken to evaluate 22 introduced sugarcane genotypes with three checks (KEN 83-737, EAK73-335 and D8484) for sucrose content in western Kenya. The... Read more.
DOI: 10.5897/JPBCS2016.0609[Article Number: D371A0462826]
Cowpea is an important source of food and income for small scale farmers in Uganda. Production is, however, affected by both biotic and abiotic stresses. Drought stress has recently emerged as a serious concern due to the effects of climate change. This study was therefore undertaken to estimate the general and specific combining ability effects of parents and crosses as well as estimate the heritability of delayed leaf... Read more.
Page 1 of 16, showing 20 records out of 301 total, starting on record 1, ending on 20