Effect of thiourea on flowering of Jasminum sambac Ait.
1987
Saroj Chomsathaporn
Thiourea at the concentrations of 0.5, 1.0 and 2.0 per cent were sprayed to jasmine plants (Jasminum sambac Ait.) to promote flowering. The experiment was conducted at Mr. Chalee Pongsomboon's farm, Clong 5, Amphur Thanyaburi, Patoomthani province during December 1986 to February 1987. The thiourea application at all concentrations tested significantly increased flowering. The best flowering (72.65 flower per plant) was obtained after thiourea treatment at 1.0 % while flowering in the control was 31.6 flower per plant. The number of new shoots, the blight and dropped leaves had a direct relation with the concentration of thiourea but no effect on flower size, the length of new shoots and the number of leaves.
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