Abstract

A field experiment was carried out during 2006 to 2007 on eight years old pear plants cv. Netarhat Selection using growth regulators viz., GA₃, Thio-urea and H₂O_2, which  were sprayed with different concentrations and times. Two times spray of thio-urea 10% concentration resulted in 8 to 14 days earlier bud breaking than control as well as the maximum flowering of 11.0 and 53.3% during 2006 and 2007, respectively. The maximum yields of 10.6 and 20.6 kg/plant were obtained from two time’s spray of thio-urea 10% during 2006 and 2007, respectively. In 2007, two times spray of thio-urea 5 and 10% was at par. Thiourea increased C: N ratio which resulted in increasing spur maturity.

Key words: Pear, dormancy breaking chemicals, flowering, fruit set, yield.