Radiation Processed Carrageenan Improves Plant Growth, Physiological Activities, and Alkaloids Production in Catharanthus roseus L.

Table 5

Effect of six foliar concentrations of irradiated carrageenan (ICR) on leaf yield and herbage yield per plant of Catharanthus roseus L. at 120 and 150 DAP. Means within a column followed by the same letter(s) are not significantly different ().

Treatments (mg L^−1)	Leaf yield per plant (g)		Herbage yield per plant (g)
	120 DAP	150 DAP	120 DAP	150 DAP
ICR 0	53.50^f	55.20^f	60.25^f	66.54^f
ICR 20	56.40^e	57.49^e	62.53^e	68.90^e
ICR 40	59.00^d	60.50^d	65.60^d	75.92^d
ICR 60	63.26^c	65.36^c	72.40^c	82.36^c
ICR 80	69.10^a	74.75^a	79.91^a	91.42^a
ICR 100	65.70^b	70.35^b	76.10^b	85.62^b
LSD at 5%	2.40	2.28	2.24	2.32