تاثير خذف گل آذين به عملكرد و اندازه غده سيب زميني

The effects of Eliminating Inflorescence on Yield of Tubers in Potato (Solanum tuberosum L . )

Tuber yield in potato can increase by eliminating sinks like inflorescence. In order to investigate the effect of eliminating inflorescence on tuber yield and its size, five potato varieties: Moren, Agria (late maturing varieties), Pikaso (medium maturing variety), Concord , Draga (early maturing varicties) were growen in Karkaj Research Station , Faculty of Agriculture, University of Tabriz .The research was carried out as factorial experiment arrangedʹ in a randomized complete block design with three repliactions. Variety and eliminating or not eliminating of inflorescence was considered as two factors. The results showed an increase of 2.5 tons/ha in tuber yield under elimination of inflorescence, however, this was not statistically significant. Eliminating of inflorescence increased tuber size, number of leaves and number of branches which was statistically significant (p<%1). Agria showed the highest tuber yield under both conditions of eliminating and not eliminating of inflorescence. In conclusion, elimination of inflorescence as a competing sink with tuber which increases number of leaves, number of branches and leaf area index, can increase tuber yield in potato.