Effect of pruning , Liquid Seaweed and Kinetin on growth and flowering Solidago Canadensis

Abstract

     The experiment was conducted in the certified citrus nursery , Indian Horticultural Station , General Horticultural Department , Ministry of Agriculture during the summer season of 2022. To study the effect of pruning, seaweed extract and kinetin on the growth and flowering of Solidago Canadensis plant, the plants were pruned using two types of pruning, the first at a height of 100 cm and the second at a height of 30 cm, in addition to the control treatment (without pruning). The plants were also sprayed with seaweed extract at concentrations (0, 2, 4 ml.L^-1) and Kinetin (0, 50, 100 mg.L^-1). The experiment was coundected as a factorial experiment (3×3×3) according to the Complete Randomized Blocks Design (R.C.B.D) and with three replicates, each replicates containing 27 treatments with 7 plants per experimental unit, and the averages were compared using the Least Significant Difference (L.S.D) test at level 5. %. The results showed the following:

1. Pruning at a height of 100 cm was excelled in some traits, including: number of branches (92.49) branch.plant^-1, chlorophyll content (40.40), number of inflorescences (101.65) inflorescencesplant^-1
2. The treatment with seaweed extract 4ml.L^-1 was excelled in traits, number of branches (67.06) branch.plant^-1, flower stem length (61.46) cm, number of inflorescences (73.18) inflorescences/plant.
3. The treatment with kinetin 100 mg.L^-1 was excelled in increasing the number of branches (64.80) branches.plant^-1, the length of the flower stem (60.41) cm, the number of inflorescences (68.59) inflorescences.plant^-1