Influence of various levels of growth hormones on rooting of cuttings of casuarina (Casuarina equisetifolia L.)

Abstract

The present investigation entitled “Influence of various levels of growth hormones on rooting of cuttings of Casuarina (Casuarina equisetifolia L.)” was conducted at College of Forestry (ACHF), Navsari Agricultural University, Navsari, Gujarat, India. The experiment was laid out in a Completely Randomized Design with eleven different treatments of growth hormones viz., IAA, IBA, NAA and their dual combinations with three repetitions. Among various growth hormones, T11 i.e. IBA @ 25 ppm + NAA @ 25 ppm took minimum days to sprout (6.67 days) and 50 per cent sprout (9.67 days) whereas days to sprout (12.33 days) and 50 per cent sprout (17.33 days) were delayed in Control treatment. The highest values of root length (6.82 cm), number of primary roots (9.13), increment in shoot length (7.52 cm), survival (61.11 %) and length based root: shoot ratio (0.69) were observed in T11: IBA @ 25 ppm + NAA @ 25 ppm. Furthermore, lower values of above all parameters were recorded in Control.