Abstract:
The study was conducted at the Pomology project, Department of Horticulture, College of Agriculture, Benguet State University, La Trinidad, Benguet from October 2015 to February 2016 to determine the best source of vine cuttings for asexual propagation of granadilla vines; to determine the best ANAA concentration that will enhance rooting and seedling growth of granadilla vine cuttings; to evaluate the seedling characteristics of different vine cuttings of granadilla as affected by different ANAA concentration and to determine the profitability of using ANAA in producing different kinds of stem cuttings of giant granadilla.
Results revealed that shoot tip cuttings soaked in 750 ppm ANAA concentration were the earliest to develop roots. Hardwood cuttings treatment with 500 ppm IBA concentration and 250 ppm ANAA attained the earliest days to first appearance of leaves, highest number of rooted cuttings, longest roots, highest percentage survival, highest number of leaves formed and produced the longest shoot length three months from sticking to the rooting media.
Untreated cuttings or the control attained the longest shoot. Cuttings treated with 500 ppm IBA had the highest percent of survival, highest percentage of rooting and earliest to first appearance of leaves. Higher number, longest roots and highest number of leaves were produced after three months were observed in cuttings treated with 250 ppm ANAA.
Statistically, there were highly significant interaction effects observed between the different ANAA concentrations and kind of vine cuttings on the rooting of Passiflora quadrangularis L. on the number of days to first appearance of roots and average number of roots produced 3 months from sticking the cuttings in the rooting media. Significant differences were also observed on the percentage survival, percentage of rooting, average root and shoot length and number of days to first appearance of leaves.
In addition, hardwood vine cuttings treated with 250 ppm ANAA and 500 ppm IBA concentration soaked for one-hour is recommended for propagation since they could enhance earlier leaf formation and development of more number of roots and leaves, longest root growth and highest percentage of survival having good growth with dark green leaves.
