Genetic Studies of Agronomic and Physiological Traits in Tomato (Lycopersicon lycopersicum Mill.) Under Heat Stress Conditions
Journal Title: Journal of Experimental Agriculture International - Year 2016, Vol 13, Issue 6
Abstract
Field experiments were conducted at National Horticultural Research Institute, Bagauda (11°33´N; 8°23´E) in the Sudan Savannah and Institute for Agricultural Research, Samaru (11°11´N; 07°38’E) in the Northern Guinea Savanna ecological zones of Nigeria between July-October, 2014 rainy season to estimate Genotypic Coefficient of Variation (GCV), Phenotypic Coefficient of Variation (PCV), heritability, Genetic Advance (GA) and Genetic Advance as percent of Mean (GAM) for agronomic and physiological traits of tomato under heat stress conditions. The study comprised 15 hybrids, their parental lines along with four checks were laid out in partially balanced lattice design with three replications. Analysis of variance revealed significant variation among the genotypes for all traits except fruit diameter, indicating sufficient variability existed among the genotypes. The estimates of PCV were higher than GCV. High GCV and PCV values were recorded for number of clusters per plant, and number of fruits per plant suggesting high genetic variability for these traits. Broad-sense heritability varied from 5.20% to 98.92%, while the estimates of GA showed a wide range from 0.09 to 161.13. High estimates of Broad-sense heritability coupled with high GAM were observed for the number of clusters per plant, number of flowers per cluster, number of fruits per cluster, number of fruits per plant, fruit length, fruit shape index and yield per plant indicating additive gene effects for the hereditary pattern of roles. Based on the results of the study, simple selection based on phenotypic performance of these traits would provide better response and also considered for higher fruit yield under heat stress conditions.
Authors and Affiliations
H. S. Hamisu, S. G. Ado, M. Y. Yeye, I. S. Usman, S. O. Afolayan, M. G. Bala, A. Usman, J. J. Yaduma, B. A. Idris, S. M. Muhammad, A. H. Hudu, A. U. Idris, Y. D. Giginyu, J. I. Aliyu
Keywords
Related Articles
- EP ID EP351268
- DOI 10.9734/AJEA/2016/28424
- Views 68
- Downloads 0
Effect of Petroleum Products Treatment of Soil on Succinate Dehydogenase and Lactate Dehydogenase Activities in Cowpea (Vigna unguiculata) and Maize (Zea mays) Seedlings
Aim: Most of the land in oil producing area in the Niger delta region of Nigeria is under constant petroleum pollution exposing the soil to the deleterious effect of petroleum hydrocarbons. The effects of petroleum produ...
Promotion of Turmeric for the Food/Pharmaceutical Industry in Nigeria
This paper seeks to promote turmeric (Curcuma longa Linn) through increased awareness of the potentials of the crop in the food, cosmetic and pharmaceutical industries in Nigeria. Nigeria can take the lead in turmeric pr...
Cost Efficiency of NERICA Producing Households in Ghana: A Modified Non-neutral Stochastic Frontier Analysis
Aim: To investigate cost efficiency and its determinants on New Rice for Africa (NERICA) farms in Ghana whilst accounting for the non-usage of fertilizer and herbicides by some farmers. Study Design: Cross sectional. Pla...
Yield and Root Quality of Two Sweetpotato (Ipomoea batatas [L.] Lam) Varieties as Influenced by Chicken Manure, Inorganic Fertilizer and Storage Methods
Two field experiments were conducted at two seasons at the University of Education, Winneba, Mampong-Ashanti campus to investigate the responses of the yield and root quality of two varieties of sweetpotato (Apomuden and...
Differentiated Contribution of Minerals through Soil and Foliar Fertilization to the Winter Wheat Yield
Research has evaluated the contribution of minerals through soil and foliar fertilization on winter wheat yield, the purpose being to identify the interdependence relations for the optimization of the fertilization syste...