Silicon Improves Yield Performance by Enhancement in Physiological Responses, Crop Imagery, and Leaf and Culm Sheath Morphology in New Rice Line, PadiU Putra

Table 9

Culm wall thickness of rice plants with different Si method applications at 55 and 75 DAT.

Treatment	Culm wall thickness of the 1^st layer (μm)		Culm wall thickness of the 2^nd layer (μm)		Culm wall thickness of the 3^rd layer (μm)
	DAT
	55	75	55	75	55	75
Control	308b	266c	322a	305a	312b	339a
Topdressing	337a	295b	338a	293a	295b	320a
Foliar spray	294b	330a	324a	286a	387a	344a
LSD ()	10.7	18.01	10.5	14.87	12.73	15.04
CV	2.45	6.30	7.78	3.45	7.50	3.98

Mean values followed by the same letters within a column are not significantly different at by the LSD test. DAT: days after transplanting; CV: coefficient of variation.