A review: Macro-propagation of guava (Psidium guajava)

Abstract

Guava can be propagated by air-layering, ground layering, inarching, root and shoot cutting and budding. Air-layering is the most popular commercial method of vegetative propagation of guava in India. Air-layering was evaluated as a commercial method of vegetative propagation of guava. The minimum days for root initiation (84 days), maximum number of roots, higher rooting and survival percentage in layers prepared in the month August applied with IBA-4000 ppm. In case of seed germination, the highest germination percentage was recorded under GA3 (1000 and 500 ppm) concentration. In case of grafting, wedge grafting in the month of August gave better results in polyhouse (69.88 %) as well as in open field condition (67.12 %). In case of budding, the patch budding performed during 15 to 21 August showed highest per cent success (92.07%) recorded after 90 days of guava propagation. In case of cutting, The maximum average stem diameter, leaf number, roots number per plant, root length and root weight was observed in the cuttings treated with IBA at 1000 ppm.