PJB-2013-233
MANIPULATION OF PLANT GROWTH REGULATORS AND NON-INDUCTIVE PLANT ENVIRONMENT TO CONTROL PLANT HEIGHT OF FACULTATIVE SHORT DAY ORNAMENTAL ANNUALS
JALAL-UD-DIN BALOCH1*, MUHAMMAD MUNIR2, SALMA SHAHEEN1 AND FARZANA3
Abstract
Seeds of Facultative SDPs (Zinnia cv. Lilliput, Sunflower cv. Elf, French Marigold cv. Orange Gate, African Marigold cv. Crush, Cockscomb cv. Bombay and Cosmos cv. Sonata Pink) were sown into module trays containing leaf mould compost. After 70% emergence of each cultivar, two experiments were conducted to control plant height. In first experiment, plants of each cultivar were treated with standard dose of widely applied PGRs (30ppm of A-Rest, 30ppm of Bonzi, 1000ppm of Cycocel) along with a control treatment. In second experiment, plants of same cultivars were kept under long day (LD) non-inductive environment for 2, 4, 6 and 8 weeks. After each time scale these plants were transferred to their SD inductive environment chamber until flowering. Findings of this study revealed that all three PGRs significantly (P
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