Abstract
A replicated field evaluation trial was conducted involving 26 accessions of Chinese potato [Plectranthus rotundifolius (Poir.) Spreng.], an under-utilised tuber crop. In the present study, there were significant differences for the yield contributing characters between the accessions. Maximum yield was observed in IC468968 which showed highest value for both single plant yield (216.25g) and average weight of single marketable tuber (56.63g) and can be directly utilised in the crop improvement programme. IC412975 performed very poorly and had least value for all characters except for length of unmarketable tuber. A positive significant correlation between all the yield and yield contributing characters except tuber length and width of both marketable and unmarketable tuber was observed. Accessions grouped in the first cluster were high yielders with more than 150 g tubers/plant, which can be further enhanced by adopting improved agronomic practices.
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