Chemical control of tree vigour and the promotion of flowering and fruiting in mango (Mangifera indicaL.) using paclobutrazol

Effect of Growth Retardants on Yield and Yield Contributing Characters in Mango (Mangifera indica L.) cv. Alphonso under Ultra High Density Plantation

“…However, early 50 per cent flowering was recorded by T 6 .Growth retardants paclobutrazol where combined with KNO 3 and uniconazole alone had the shoots with desired maturity gave rise to early flowering and 50 per cent flowering compared to control. Early flowering in paclobutrazol treated trees was also reported by Kulkarni (1988), Gopu, (2011) and Panjavarnam (2012. Application of paclobutrazol and uniconazole encouraged early reduction of endogenous the gibberellins levels within the shoots which in turn resulted in earlier maturity than untreated control (Protacio et al, 2013;Sarker and Rahim, 2012;Burondkar and Gunjate, 1991).…”

“…The hormonal concept of flowering in mango implied that the cyclic synthesis of floral stimulus in the leaves and the difference between two such cycles would determine the flowering behaviour of a cultivar (Kulkarni, 1988). In general, triazoles, owing to its antigibberellin activity, could induce or intensify flowering by blocking the conversion of kaurene to kaurenoic acid (Voon et al, 1991).…”

Reproductive physiology of mango

“…Vegetative or reproductive induction at the time of shoot initiation appears to be governed by the ratio of the putative floral promotive and inhibitory components, as proposed in several plant species by Lang et al (1977), Bernier et al (1981), Lang (1984), Kulkarni (1988a) and Kondoh et al (1999). In the case of mango, the floral inhibitor should be viewed as an age-dependent VP.…”

“…Whereas the floral inductive signal in mango may be present prior to initiation, it must still be present at the time of shoot initiation for flowering to occur (Kulkarni, 1988a;Davenport, 1993;Núñez-Eliséa and Davenport, 1995;Núñez-Eliséa et al, 1996). In addition, the inductive signal can be shifted from reproductive to vegetative or vegetative to reproductive by altering temperatures to which the plants are exposed during early shoot development (Núñez-Eliséa et al, 1996).…”

Influence of paclobutrazol on growth, yield and quality of mango

“…The availability of fresh fruits after the normal fruiting season for a longer period, in addition to increasing yield and quality can be extended by using paclobutrazol. Soil application of paclobutrazol induces precocious flowering in young trees and promotes early flowering in bearing trees (Kulkarni, 1988). Inflorescence becomes visible within 2.5 to 4 months after the application of paclobutrazol depending on cultivar (Junthasri et al, 2000).…”