Abbreviation: J. Plant Breed. Crop Sci.
Start Year: 2009
Page 1 of 16, showing 20 records out of 313 total, starting on record 1, ending on 20
https://doi.org/10.5897/JPBCS2017.0704[Article Number: 2E1484056061]
This work investigated the effects of seven pollination bag treatments on three varieties of sorghum for: grain loss to birds; total weight of five panicles (g); total grain weight of five panicles (g); average grain weight per panicle (g); germination per cent; and occurrence of grain mold during 2016. Varieties were: 1167048 hybrid (brown seeded); BR007B (red seeded); and P9401 (white seeded). The bag treatments were:... Read more.
https://doi.org/10.5897/JPBCS2017.0699[Article Number: 51C717C56063]
Periodic assessment of resistant status of genetic materials in a breeding program is an important activity to ensure its continued progress. Forty newly-developed early and extra-early maize varieties were evaluated under natural field infection conditions for two years to assess their resistance status to some common diseases prevalent in the humid rainforest agro-ecology, and to determine effect of the diseases on... Read more.
https://doi.org/10.5897/JPBCS2017.0696[Article Number: F5080FC55651]
In Benin, cotton cultivation is rain fed. There is a need to develop varieties adapted to the current diversity of growing conditions caused by climate disruptions. To identify types of varieties that may be used in crossing to adapt varietal offer to climatic disturbances, sixteen genotypes of diverse origins were characterized with a randomized complete block design with four replications. Fifteen agro-morphological... Read more.
https://doi.org/10.5897/JPBCS2017.0691[Article Number: 7D4B81D55653]
The development of production technologies, such as greenhouses, was highlighted in the growth of horticultural crops. However, these products are often offered without basic instructions to farmers who can generate financial losses. One outstanding production technology is substrate cultivation, which would be very useful in the cultivation of protected plants. Like this, in order to evaluate the effects of different... Read more.
https://doi.org/10.5897/JPBCS2016.0589[Article Number: 1AA1E7C55880]
Drought stress is a major factor decreasing cotton productivity in Malawi. To identify drought tolerant cultivars, a study was conducted in 2012 at Bunda College to evaluate the performance of 20 cotton genotypes under water stress conditions. A screen house pot experiment was carried out using a randomized complete block design and data were recorded on tap root length, lateral root number, fresh root weight, dry root... Read more.
https://doi.org/10.5897/JPBCS2017.0695[Article Number: 08BCBF055332]
Wild relatives of eggplants represent a good source of variation for breeding programmes, in particular for traits related to biotic and abiotic stresses and also fruit quality traits. However, wild species remain largely unexploited for eggplant breeding compared to other crops like tomato. Seven cultivated eggplant accessions (SM001-02, SM001-04, SM001-06, SM001-07, SA002-02, SA002-03 and SMA003-03) were crossed with... Read more.
https://doi.org/10.5897/JPBCS2017.0690[Article Number: 7039E1F55334]
Drought is a serious climatic hazard to crop production, more especially when it occurs repeatedly. This created a need to identify repetitive drought tolerant varieties that recover following exposure to drought. Twenty accessions of Solanum aethiopicum Shum group were evaluated for their response to repeated drought exposure in a screen house at Uganda Christian University stressed and well-watered conditions in a... Read more.
https://doi.org/10.5897/JPBCS2017.0698[Article Number: 190D8FE55336]
Flower thrips [Megalurothrips sjostedti (Trybom)] is the most damaging insect pest on cowpea. However, information regarding the nature of gene action governing the inheritance of resistance to thrips is not available for cowpea genotypes in Uganda. This study was carried out to determine the inheritance pattern of cowpea resistance to flower thrips. Five resistant cowpea genotypes and three susceptible genotypes were... Read more.
https://doi.org/10.5897/JPBCS2017.0697[Article Number: 0641E7D67150]
Jatropha curcas L. (JLC) is a perennial shrub, originating in Central and South America and widely distributed in the tropical regions of the world. It is important in the bioenergy industries due to the characteristics of its oil which can be transformed into high quality biofuel for the substitution of diesel and jet fuel. The native gene, female only flower (FOF), is a desirable trait in the production of hybrid seed... Read more.
https://doi.org/10.5897/JPBCS2017.0684[Article Number: 79D49F167151]
Combining ability estimates were studied for pod shattering and other agronomic traits in eight parental soybean genotypes of different pod shattering group namely: susceptible to pod shattering, moderately resistant to pod shattering were crossed in a 4 x 4 North Carolina mating design II to generate 16 crosses, due to missing stands encountered in some crosses, 9 successful F1S hybrids were obtained in the... Read more.
https://doi.org/10.5897/JPBCS2017.0672[Article Number: DDF946466859]
The present study was emphasized on low input technology entitled “Evaluation of five botanical powders against maize weevil, Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae) on maize (Jibat variety) under laboratory condition”, thereby decreasing the loss of maize in storage. Leave powder of five botanical used at four doses such as 2, 5, 8 and 11% weight by weight with maize seeds were evaluated in... Read more.
https://doi.org/10.5897/JPBCS2017.0686[Article Number: D57328066861]
In the present investigation, the genetic variability of 64 speckled type common bean genotypes were evaluated at Haramaya University during 2015 cropping season using 8 × 8 simple lattice design with three replications. The analysis of variance indicated highly significant (P<0.01) differences among genotypes for all the nine characters studied. High genotypic coefficient of variation (GCV) was observed for... Read more.
https://doi.org/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.
https://doi.org/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.
https://doi.org/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.
https://doi.org/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.
https://doi.org/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.
https://doi.org/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.
https://doi.org/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.
https://doi.org/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.
Page 1 of 16, showing 20 records out of 313 total, starting on record 1, ending on 20