Role of plant growth regulator's in guava (Psidium guajava L.) – A review

Plant hormone play a key role in guava production by influencing directly or indirectly various plant processes like germination, rooting, growth and productivity of guava. These also can influence size, appearance and quality parameters of fruits by indirectly affecting the crop growth and development or directly by synchronizing flowering, improving fruit-set, decreasing pre-harvest fruit drop and thinning of excessive flowers or young fruits. These may also help in maintaining the desired tree growth and shape for high density orcharding. In this review article a detailed information on research work done in India on the use of various plant growth regulators in guava production have been incorporated.