COMPARATIVE ASSESSMENT OF TOMATO MUTANTS BASED ON MORPHO-PHYSIOLOGICAL, BIOCHEMICAL AND REPRODUCTIVE CHARACTERS, YIELD AND QUALITY
A field experiment was conducted at the experimental farm of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, during the period from October 2012 to March 2013 to investigate some morphological, growth, reproductive characters, yield attributes and fruit yield in ten tomato mutants/varieties. The tested mutants/varieties were Binatomato-4, Binatomato-5, TM-113, TM-127, TM-128, TM-131, TM-132, TM-133, TM-134 and TM-160. Results revealed that in general, high yielding genotypes showed superior performance in leaf area, total dry mass production, absolute growth rate, nitrate reductase activity and total sugar content in leaves, number of flower cluster and flowers plant-1 which resulted higher number of fruits plant-1 compared to low yielding ones. Chlorophyll and reproductive efficiency had no contribution to fruit yield. Fruit yield had highly significant positive correlation with leaf area, total dry mass, absolute growth rate, number of flower clusters and fruits plant-1. On the other hand, fruit size had significant negative association with fruit number. This result indicates that the improvement of fruit number plant-1 could be achieved by selecting increased number of effective flower cluster plant-1. The mutant, TM-133 maintained superiority in most of the yield related traits and produced the highest fruit yield (100.1 t ha-1).
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