Abstract: Six diverse tomato cultivars/ lines viz, Arka Saurabh, Arka Abha, Arka Meghali, Punjab Chhuhara, Best of All and Sioux, selected on the basis of high yield coupled with high quality, were crossed in a half diallel fashion to obtain fifteen cross combinations which were tested with two check cultivars HYB-Roop-666 and TS-15. Two crosses viz, Punjab Chhuhara x Best of All (15.82 %) and Arka Saurabh x Punjab Chhuhara (11.45 %) exhibited significantly positive heterobeltiosis for number of fruits per plant. Only two cross combinations viz, Best of All x Sioux (12.26%) and Arka Abha x Arka Meghali (11.32%) showed significant positive heterosis over better parent for fruits per cluster. While crosses, Arka Abha x Arka Meghali and Arka Meghali x Punjab Chhuhara showed significantly positive heterobeltiosis for fruit weight. Six cross combinations have significant estimates of heterobeltiosis in favourable direction for number of clusters per plant. Only one cross combination viz, Arka Meghali x Best of All (11.47%) resulted in significantly positive heterosis over the better parent for fruit length while four cross combinations comes up for fruit breadth. In the present studies, among the fifteen cross combinations, five crosses, viz., Arka Abha x Arka Meghali, Arka Abha x Punjab Chhuhara, Arka Meghali x Punjab Chhuhara, Arka Meghali x Best of All and Punjab Chhuhara x Best of All resulted in significant positive heterosis over better parent for fruit yield per plant. Maximum yield improvement was realized to the extent of 31.82% for the cross Punjab Chhuhara x Best of All.
Keywords: Tomato, heterosis, yield, hills.
Title: Experiments in Hybridization to Develop Hill Specific Hybrids in Tomato (Lycopersicon Esculentum Mill.)
Author: Pawan Kumar, Ajaya Paliwal
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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