Biochemical and Anatomical Changes and Yield Reduction in Rice (Oryza sativa L.) under Varied Salinity Regimes

Table 3

Effect of salinity on chlorophyll-b content (mg cm⁻²) of eight rice varieties.

Varieties	Salinity levels (dS m^−1)
	0	4	8	12
IR20	5.85^a (100)	4.15^ab (71)	2.30^cd (39)	1.37^c (23)
Pokkali	5.80^a (100)	4.65^a (81)	3.02^a (52)	2.07^a (36)
MR33	4.88^c (100)	3.44^cd (71)	2.42^cd (50)	1.52^bc (31)
MR52	4.83^c (100)	3.19^d (66)	2.61^bc (54)	1.68^b (35)
MR211	5.10^bc (100)	4.18^ab (82)	2.92^ab (57)	2.09^a (41)
MR219	5.61^ab (100)	4.04^ab (72)	2.15^d (38)	1.25^c (22)
MR232	4.90^c (100)	4.13^ab (85)	2.95^ab (60)	2.07^a (42)
BRRI dhan29	5.66^a (100)	4.00^bc (71)	2.23^d (40)	1.27^c (23)

Means within columns with the same letters are not significantly different (LSD, 𝑃≤0.05).
Values within parenthesis indicate percent relative to the control.