Journal of
Plant Breeding and Crop Science

  • Abbreviation: J. Plant Breed. Crop Sci.
  • Language: English
  • ISSN: 2006-9758
  • DOI: 10.5897/JPBCS
  • Start Year: 2009

JPBCS Articles in press

Article in Press

Genetic Variability of Some Chickpea (Cicer arietinum L.) Genotypes and Correlation Among Yield and Related Traits in Humid Tropics of Southern

The current investigation was to evaluate genetic variability of some chickpea (Cicer arietinum L.) genotypes and correlation among yield and related traits in Abaya Woreda. Five improved chickpea genotypes along with one local variety were laid out in randomized complete block design with three replications. Data were recorded from phenological, growth parameters; and yield and related traits depicted the ranges of mean...

Author(s):Mieso Keweti Shengu

Article in Press

Integrated Evaluation of Potato Varieties in the Highlands of Girarjarso Woreda, North Shewa, Ethiopia

In Ethiopia, farmers are cultivating potato under a wide range of environmental conditions. Despite its genetic potential, the productivity of potato is relatively low. Among the long list of production constraints, the absence of high yielding and disease resistant varieties in different corners of the country are the prominent ones. Its suitable edaphic and climatic conditions make the highlands of Girarjarso Woreda...

Author(s):Amha Besufkad

Article in Press

GGE Biplot Phenotypic Stability Analysis of Soybean [Glycine max (L.) Merril] Genotypes

The study on GEI, and stability analysis was conducted to determine the G, E, and GEI variance magnitudes. The experiment was carried out at three locations in two consecutive years on 26 soybean genotypes using RCBD design with three replications. The objectives were to (i) estimate the magnitudes of G, E, and GEI effects, (ii) stability analysis of 26 genotypes, and (iii) to identify the highest yielding genotypes for...

Author(s):Ermiyas Tefera

Article in Press

Genetic studies of Grain Yield and other agronomic Traits of Low-N Maize (Zea mays L.) Using a Diallel Cross

Ten low-N open pollinated maize varieties were converted to inbred line after six generations of selfing and used to study the genetic effects of grain yield and other agronomic traits. The 10 inbred lines were crossed in all possible combinations to generate 90 F1 hybrids (45 crosses and 45 reciprocals). The 90 F1 along with their parents were evaluated at the Teaching and Research Farms of Ekiti State University,...

Author(s):Michael Segun Afolabi

Article in Press

Inheritance and combing ability in maize using a 7x7 diallel cross

Twenty one F1s produced from 77 diallel mating along with the 7 parents were assessed to notice the inheritance of controlling different traits. Genetic variance was clarified by taking on genetical analysis according to Hayman’s and Griffing’s diallel analysis. Hayman’s approach indicated dominance variance and the proportion of +/- genes were higher than additive variance in all characters. Hybrids projected positive or...

Author(s):Md. Motiar Rohman

Article in Press

Stability for descriptors of Solanum aethiopicum Shum group

Solanum aethiopicum Shum group is a nutrient-rich and income-generating crop enterprise in various sub-Saharan Africa countries. Despite its importance, development of improved varieties had not been prioritized. Until now, no field-based descriptor development reference for the crop is available for testing candidate varieties for distinctiveness, uniformity and stability. The purpose of this study was to identify...

Author(s): Kabod Nahamya Pamela

Article in Press

Genotype by environment interaction and stability analysis in cowpea [vigna unguiculata (l.) walp] genotypes for yield in Ethiopia

Ethiopia is claimed to be center of diversity for cowpea production. The crop being the most drought tolerant and could serve the country to overcome the recurrent drought problem. However, the yield is very low due to the less attention to develop varieties. This research was conducted aimed at evaluating the stability of cowpea genotypes and estimating the magnitude of genotype by environment interaction (GEI) effect on...

Author(s):Simion Tariku

Article in Press

Genetic Variability, Heritability and Genetic advance of Maize (Zea mays L.) Inbred lines for yield and yield related traits in Southwestern Ethiopia

Understanding the genetic variability, heritability and genetic advance of traits in any plant population is an important pre-requisite for breeding program. The experiment was conducted to assess the magnitude of genetic variability, heritability and genetic advance of 24 maize inbred lines for 16 quantitative traits. The field experiment was conducted during 2016 cropping season at Jimma Agricultural Research Center...

Author(s):Lemi Beksisa

Article in Press

Study of Path Coefficient Analysis in Castor (Ricinus communis L.) Accessions at Melkassa, Central Rift Valley of Ethiopia

A Field experiment was carried out to determine direct and indirect effects of yield and its components in castor accessions at Melkassa, central rift valley of Ethiopia under irrigation in 2014. The experiment was conducted using RCBD design with 3 replications and a total of 48 castor accessions were evaluated. Number of capsules per plant, number of primary branches per plant, length of inter node and hundred seed...

Author(s):Destaw Mullualem

Article in Press

Inheritance and combining ability studies of resistance to cowpea bruchid (Callosobruchus maculatus F.)

The cowpea bruchid Callosobruchus maculatus (F.) is one of the most destructive pest and causes substantial losses to cowpea during storage in tropical and subtropical regions. The development of successful breeding strategy requires knowledge on gene action and trait inheritance in local and improved sources. In this study, the mode of inheritance, the types of gene action and maternal effects of cowpea resistance to...

Author(s):Belay Weldekidan Miesho

Article in Press

Evaluation of agronomic performance of beta-carotene rich (yellow fleshed) cassava varieties in Nigeria

Twenty-five yellow fleshed cassava varieties including three checks (two improved and one local) were evaluated in a randomized complete block design with four replications in three locations in Nigeria. Tuber yield, dry matter content, root size, fiber content, harvest index, sprouting and vigor of the varieties evaluated were all significant at 0.05 significant levels across the locations. Taste, color of unexpanded...

Author(s):Ayoni Ogunbayo

Article in Press

Comparison of grain yield based drought tolerance indices under normal and stress conditions of rice in Egypt

The objective of this study was to evaluate the ability of several indices to identify drought resistant genotypes of rice under normal and stress conditions in Egypt. Thirteen drought tolerance indices including stress susceptibility index (SSI), tolerance index (TOL), mean productivity index (MP), geometric mean productivity (GMP), stress tolerance index (STI), yield index (YI), yield stability index (YSI), drought...

Author(s):E. F. El-Hashash and R.Y.A. EL-Agoury

Article in Press

A study on Phenotypic and Genotypic Coefficient of Variations for Morphological and Agronomic Traits in Bread Wheat (Triticum aestivum L.) Genotypes Under the Arid Conditions of Northern Sudan

Genetic diversity is important for crop improvement. An experiment was carried out at Merowe Research Station, Northern state of Sudan, during two consecutive winter seasons 2013/14 and 2014/15 to estimate the phenotypic and genotypic coefficients of variations, heritability in broad sense, genetic advance and genetic advance as percentage of the mean for yield and other growth attributes in twenty four bread wheat...

Author(s):Fatih E. A. Hamza

Article in Press

The impact of climate change on coffee production and genetic resources

Coffee is one of the most valuable traded commodities and comprises about 1% of the overall value of world trade. Coffee is today grown in more than 60 tropical countries of the world and accounts for a significant part of the foreign exchange earnings of many countries in Africa, Latin America, Asia and Central America. An estimated 25 million farmers depend on coffee for their livelihoods. Despite its importance for...

Author(s):Abrha Getachew WeldeMichael, Demelash Teferi

Article in Press

Variation in Seed Yield and Yield Related Traits of Released Ground nut (Arachis hypogaea L.) Varieties in Abergelle District, Northern Ethiopia

Groundnut (Arachis hypogaea L.), also known as monkey nut and peanut is the second most important lowland oilseed after sesame, and has become an important high value crop grown in the dry land areas of Tigray region, Northern Ethiopia. However, its production and productivity is considerably low in Abergelle due to insufficient improved and disease resistant/ tolerant varieties. Thus, a field experiment was conducted...


Article in Press

Genetic Variability Studies on Bread Wheat (Triticum aestivum L.) Genotypes at Kulumsa and Tongo, Ethiopia

Thirty bread wheat genotypes were tested to assess the genetic variability, among studied genotypes. The genotypes were grown in alpha-lattice design at Tongo sub-center of Assosa Agricultural Research Center and Kulumsa Agricultural Research Center in 2015. Analysis of variance revealed that there were statistically significant differences among the genotypes for most of the traits at individual and across locations. From...

Author(s):Alemu Dabi

Article in Press

Seed Yield Stability and Genotype × Environment Interaction in Common Bean (Phaseolus vulgaris L.) Varieties in Dawro Zone, Southwestern Ethiopia

Stable yield performance of genotypes is very important in countries like Ethiopia where means to modify environments are limited. However, occurrence of significant genotype X environment interaction (GEI ) complicates selection of stable genotypes. In Ethiopia, the yield potential of common bean varieties is underutilized due to poor addressing of all potential areas and mismatch between selection and production...

Author(s):Ashango Zeleke

Article in Press

Determination of Optimum Plant Density of Broadcasting, Row Planting and Transplanting on yield and yield component of Tef [Eragrostis tef (Zucc.) Trotter] in Centeral Zone of Tigray, Ethipia

The Low national or regional tef productivity is mainly attributed by lack of improved agronomic practices. In spite of, broadcast method of sowing has been predominantly used in the past years; new agronomic practices should be in place to increase the productivity of the crop. Row planting and transplanting is one of the promising planting techniques proved to boost the yield of tef. The objective of this study was to...


Article in Press

Antifungal activity of crude leaf extract of melia azedarach against selected fungal disease of agricultural crops

Developing and formulation of plant base fungicides is a new approach in the management of plant diseases that avoids enviromental pollution and enables a more efficient control of pathogenic fungal diseases of agricultural plants. Extracts from leaf part of Melia azedarach were studied as potential antifungal agents for selected phytopathogenic fungi. Melia azedarach is a small to medium deciduous tree, an attractive...

Author(s):Setegn Abi

Article in Press

Physiological, Biomass Production and Yield Responses of Three Chickpea (Cicer arietinum L.) Accessions Subjected to Water Deficit Stress at Two Phosphorus Levels

Water deficit and phosphorus deficiency are important limiting factors in crop production in tropical Africa. The physiological, biomass production and yield responses of three chickpea (Cicer arietinum L.) accessions namely; Yaya Gulele, Legambo and Moretina Jiru were evaluated at three water deficit and two phosphorus levels under glasshouse condition. The water deficit treatments were imposed at the vegetative (28 days...

Author(s):Yemata Getahun

Article in Press


Understanding methods of genetic estimations and implementing through appropriate way in wheat breeding can predicts the desirable and productive crosses which help plant breeder in selection of desirable and acceptable crosses for future selection strategy. The present study were conducted during winter 2013-14 and 2014-15 at Agricultural Research Station, Chitral, KP-Pakistan for the estimation of heterosis,...

Author(s):Ayaz Khan

Article in Press

Combining Ability and Gene Action Estimation in Elite Maize (Zea mays L.) Inbred Lines at Bako, Ethiopia.

Maize (Zea mays L.) is an important food crop in Ethiopia, but its productivity in farmers’ field through out the country is generally low due to limitation of high yielding improved maize hybrid varieties. Knowledge of combining ability and gene action is essential to identify good combiner inbred lines and high yielding potential hybrids to replace the local open-pollinated varieties. The objectives were to evaluate...

Author(s):Kinfe Hailegebrial

Article in Press


A field experiment was carried out at Laelay maichew and Tahtay maichew districts in Central Zone of Tigray, Northern Ethiopia, for two consecutive seasons (2015/2016 – 2016/2017), under rain fed condition. The objective of the study was to evaluate and select best performing faba bean genotypes. 10 faba bean genotypes including the local check were evaluated in randomized complete block design (RCBD). Data on days to...


Article in Press

Studies on heterosis in bread wheat (Triticum aestivum L.)

A 6 × 6 parent full diallel set of bread wheat (Triticum aestivum L) was studied for better parent and standard variety. The magnitude of heterosis from F1s was calculated for days to heading, days to maturity, tillers per plant, plant height, spike length, spikelets per spike, grain yield and 1000 grain weight. This study showed that the manifestation of heterosis in F1 hybrids over better parents and standard variety...

Author(s):Asit Baran Mandal, DEBASHIS SAREN

Article in Press


Ananas comosus var. erectifolius (L. B. Sm.) Coppens & F. Leal, populary known as curauá, is a bromeliaceae, found in the Amazonian flora, of great commercial interest, mainly for the automobile industry. Despite the curauá potential, little has been done to conserve its germplasm. For this, its necessary to know its genetic variability. An efficient way of knowing it is to use molecular markers because they are...


Article in Press

The toxicity and repellency action of essential oils from Lippia javanica and Microglossa pyrifolia against Sitophilus zeamais (maize weevil)

The efficacy of two plant essential oils and their ground powders(Lippia javanica and Microglossa pyrifolia) in reducing post-harvest loss caused by Sitophilus zeamais in maize was determined in the laboratory. Each plant powder and essential oil was tested by exposing adult weevils of mixed sex to two levels of 2 and 4 g/20 g of grains and 0.5 and 2.0 ml/100 g of grains for plant powders and essential oils respectively...

Author(s):Fredrick Isigi, Caroline Lang'at Thoruwa, Sumesh Chander Chhabra

Article in Press

Impact of climate change on armyworm infestation on maize in Nigeria: A review

Maize (Zea mays) is an important food crop in Nigeria, and it is fast becoming the most widely cultivated crop. Several efforts have been made by Nigeria government to make the country self-sufficiency in maize production but some biotic and abiotic factors are impeding problems. Among the biotic constraints militating against maize production in Nigeria, armyworm (Spodoptera frugiperda) is most devastating in the recent...

Author(s):Adunola M. P., Fayeun L. S.

Article in Press

Repeatability and number of harvests required for selection in coconut hybrid varieties

In the breeding of perennial plant species, the coefficient of repeatability is an important parameter because it allows effective early selection of superior genotypes, thus saving time and cost. The objective of this study was to determine the minimum numbers of years required for observation to identify superior genotypes of coconut with high degree of accuracy. Four hybrid varieties of coconut were evaluated in a...

Author(s):Agho Collins, Adetimirin, V. O., Odewale, J. O., Ahanon, M. J.

Article in Press

Compatibility studies in Cola nitida genotypes

Cross and self-pollination compatibility studies were carried out using 10 Cola nitida genotypes from the Cocoa Research Institute of Nigeria, Ibadan. The few genotypes that were self-pollinated tended to show low pod production; whereas, crosses between the genotypes showed higher pod production. These data would suggest that multiple genotypes should be included in plantations to achieve higher levels of...

Author(s):Odutayo, O. I., Adeyemi, F. A., Adebola, P. O. and Sotimehim, O. I.

Article in Press

Post-harvest evaluation of selected inbred lines to maize weevil Sitophilus zeamais resistance

Maize weevil (Sitophilus zeamais Motschulsky) is a major maize (Zea mays L.) storage insect pest in the tropics which reduces the quantity and quality of maize hence facilitating establishment of aflatoxin and other mycotoxins. The objective of this study was to evaluate maize weevil resistance on selected inbred lines. Twenty eight inbred lines with 2 checks (MTPO701-reistant and Duma 41-susceptible) were used in this...

Author(s):Khakata S., Mbute F. N., Chemining’wa G. N., Mwimali M. , Karanja J., Harvey J., Mwololo J. K.

Article in Press

Genotypes × Environment interaction analysis for Ethiopian mustard (Brassica carinata L.) genotypes using AMMI model

The genotype x environment interaction (GEI) has an influence on the selection and recommendation of genotypes. To this end, G x E interaction and grain yield stability study was conducted for 17 advanced Ethiopian mustard across three districts (Sinana, Adaba and Agarfa) in the highlands of Bale zone during 2014 and 2015 main cropping season. Randomized complete block design with four replications was used. The combined...

Author(s):Tadele Tadesse, Gashaw Sefera, Amanuel Tekalign

Article in Press

Assessing the influence of volatiles compounds produced by flowers of three leguminous plants on the host foraging behavior of the parasitoid Apanteles taragamae Viereck, a larval parasitoid of the cowpea pod borer Maruca vitrata Fabricius

The importance of volatiles produced by three Maruca vitrata host plant in host foraging by the parasitoid Apanteles taragamae was assessed in laboratory conditions. Different odor sources consisted of uninfested flowers, mechanically damaged flowers, M. vitrata-infested flowers and clean air arranged in various combinations were tested using a Y-tube olfactometer. The influence of volatiles produced by flowers of three...

Author(s):Elie A. Dannon, Martine Zandjanakou-Tachin, Léopold S. Gnacadja, Manuele Tamò

Article in Press

Agro-morphological variability of pearl millet (Pennisetum glaucum (L.) R. Br) accessions planted in arid and semi-arid region in part of Kenya

The experiment was conducted in Marigat and Koibatek in Kenya from 2013 to 2014 under irrigation conditions in two environments. The main objective of the study was to investigate the morphological variability of 36 pearl millet (Pennisetum glaucum L.) accessions sourced from ICRISAT Kenya. Eight agro-morphological parameters were measured using the pearl millet descriptors. The experimental design was randomized complete...

Author(s):Lagat Nicholas, Paul Kimurto

Article in Press

Relationship between the efficiency of selection using combining ability and multiple traits selection indices in extra early tropical maize (Zea mays L.) under low nitrogen condition

Infertile soil mainly due to low nitrogen (N) has become an important abiotic stress affecting maize production. Progress in breeding for varieties that tolerate low-N stress has been slow due to complex genetic control. Breeders have therefore resulted to the use of secondary traits in multiple traits selection indices for selection of best genotypes under low-N condition. The objectives of this study were to identify...

Author(s):I.I. Adejumobi, R. Akromah, D. Nyadanu, A.D. Ige, Z.M.M. Issa, D. Ibrahim, K.A. Ali

Article in Press

Soil chemical properties and garden egg (Solanum spp) performance under different organic amendment

Field experiments were conducted during the growing seasons of 2012 and 2013 at the experimental farm of National Horticultural Research Institute Mbato out-Station Okigwe, Imo State, Nigeria to evaluate the effect of different organic amendments on some soil chemical properties and performance of five garden egg varieties. The treatments were five garden egg varieties (Solanum gilo, Solanum aethiopicum, Solanum...

Author(s):Onyegbule, U.N., Asawalam, D.O., Osodeke, V. E.

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