ISSN:
1573-5060
Keywords:
Lycopersion esculentum
;
tomato
;
genetics
;
herbicide
;
phytotoxicity
;
bioassay
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary The inheritance of tolerance in the tomato (Lycopersicon esculentum Mill.) to metribuzin 4-amino-6-tert- butyl-3-(methylthio)-as-triazine-5(4H)-one herbicide was investigated. A biossay using a nutrient solution culture in controlled environment growth cabinets was used to evaluate progeny from tolerant by susceptible tomato cultivar crosses for response to metribuzin. ‘Fireball’ and ‘Vision’ were used as tolerant cultivars and ‘Heinz 1706’ as a susceptible cultivar. Parental, F1, F2, and some backcross generations were studied. Visual phytotoxicity, seedling height, and seedling dry weight were recorded. The bioassay was effective for classification of the segregating generations. F2, and progeny variance analysis suggested that the inheritance of tolerance to metribuzin was controlled by one major gene with modifiers. Heritability values of 0.58 to 0.72 indicated a potential for cultivar improvement through plant breeding.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00028315
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