Vol. 12, Issue 8 (2023)

Author(s):
Jaganathan S, Manivannan MI, Richard Kennedy N, Srinivasan S, Solaimalai A, Premalakshmi V and Sivaprakash M

Abstract:
One of the most popular annual flower crops grown for commerce is the African marigold (Tagetes erecta L.), which has a 2n=24 genetic makeup and member of the Asteraceae family. It is an important crop for landscaping and is also grown commercially for loose flowers, cut blooms, oil and pigment extraction, fragrance, cosmetics, as well as for medical purposes. An experimental field test on morphological effects of African Marigold (Arka Bhanu F1 hybrid) was conducted at the Department of Horticulture, Killikulam, Agricultural College and Institute of Science from January 2023 to August 2023. The study was conducted in Randomized block design (RBD) with three replications. The treatments are Mepiquat chloride at 50, 100, 150 ppm (T₁, T₂, T₃), Chlormequat chloride at 50, 100, 150 ppm (T₁, T₂, T₃) and Uniconazole at 50, 100, 150 (T₁, T₂, T₃). In this all treatments Chlormequat chloride at 150 ppm was recorded significant difference to the plant morphology and recorded minimum plant height, maximum numbers of branches, Minimum numbers of leaves, shortest internodal length, heighest length, width, area of the leafs and maximum stem girth, dry matter content, fresh root weight, dry root weight followed by other treatments.