Nigeria is the largest producer of tomato in Africa while the Northern regions are the main producers of tomatoes in the country. Tomato (Lycopersicon esculentum Mill.) is widely cultivated and consumed in every part of Nigeria. It is an important commercial crop and good source of vitamins, minerals, essential amino acids, sugar and dietary fibers. The study aimed to report the outbreak of Tomato leafminer (Tuta absoluta) in tomato growing regions of Nigeria with a view to bring out its management strategies in Nigeria. The study was conducted in the major tomato

Aims: Study on the evaluation of phytochemical and antimicrobial effects of tomato Solanum lycopersicum (L.) on oral thrush and human cariogenic pathogens was designed to determine the antimicrobial effect of tomato extracts, and to identify the common phytochemical constituents of tomato that may be inhibitory to oral pathogens. Place and Duration of Study: Fresh tomato fruit samples were collected from Samaru market, Zaria in the month of November and December 2015, and analyzed at Microbiology Laboratory,

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rainy season to estimates heterosis for fruit yield and heat tolerance traits of tomato under field conditions. The experiment comprised two heat tolerant (Icrixina and Rio Grande) and four heat susceptible tomato (Tima, Tropimech, Petomech and Roma Savana) which were crossed Journal of Agricultural Studies ISSN 2166-0379 2018 http://jas.macrothink.org 50 using half diallel mating design in the screen house. The resultant 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 and cell membrane thermostability, indicating sufficient variability existed among the genotypes. The cross combinations Icrixina × Rio Grande, Icrixina × Tima, Icrixina × Roma Savana and Icrixina × Petomech were found heterotic over better parent for fruit yield and heat tolerance traits (Number of branches per plant, number of clusters per plant, number of flowers per cluster, number of fruits per cluster, number of fruits per plant, percentage fruit set and chlorophyll content) among the hybrids. These hybrids were superior over better parent have the potentiality to be exploited for developing commercial heat tolerant tomato hybrid under field conditions.