Vol. 10, Issue 11 (2021)

Author(s):
M Sripriya Bhargavi, N Seenivasan, P Prasanth, D Laxminarayana and P Praneeth Kumar

Abstract:
The present investigation entitled “Effect of growth, yield and pot presentability of potted annual – Zinnia elegans” was carried out in the College of Horticulture, Rajendranagar during Rabi 2020 – 2021 to find out the effect of pinching practices (Single, double and no pinch) and paclobutrazol at 0, 50, 100 and 150 ppm as well as interaction among them on growth, flower yield and pot presentability of potted annual- Zinnia elegance. The obtained results revealed that the pinching increased number of branches per plant, plant spread (E-W and N-S), number of flowers per plant, pot presentability, days to flower bud initiation and days to full bloom but decreased plant height, internodal length, flower diameter. PBZ treatments increased number of branches, flowers per plant, plant spread (E-W & N-S), pot presentability, days to flower bud initiation, full bloom but decreased plant height, internodal length and flower diameter. Among treatment combinations, double pinching with 150 ppm reduced the plant height, internodal length and flower diameter to maximum extent. Double pinching with 100 ppm paclobutrazol was found best for all growth, flower yield and pot presentability.