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Flowering:
             Induction of flowering in plants which otherwise fail to flower has also been reported with the use of various plant growth regulators.
ü Application of GA at 50 mg/l to young leave of non-flowering varieties of potato, when floral buds had just formed, resulted in flower induction in all varieties.
ü MH delayed flowering in okra.
ü GA has been reported to induce early flowering in lettuce.
Sex Expression:
ü The treatment with growth regulators has been found to change sex expression in cucurbits, okra and pepper
Gametocides:
             some plants growth regulators posses gametocidal actions to produce male sterility which can be used for F1 hybrid seed production.
ü The chemicals whichy has been reported to show good performance are MH at 100 to 500 mg/l in egg plant, okra, peppers and tomato, GA3 in onion, 2,3-dichloroisobutyrate (0.2 to 0.8%) in egg plants, musmelon, okra, onion, root crops, spinach and tomato and TIBA in cucumber, egg plants, onion, and tomato. GA at 100 mg/l can also be used for inducing male sterility in pepper. 

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