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

Table 2

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

Varieties	Salinity levels (dS m^−1)
	0	4	8	12
IR20	10.49^a (100)	8.53^abc (81)	6.24^c (59)	3.85^d (37)
Pokkali	9.78^abc (100)	9.11^ab (93)	7.87^a (77)	5.93^a (61)
MR33	8.85^bc (100)	8.59^abc (97)	7.08^b (80)	5.04^b (57)
MR52	8.26^c (100)	7.28^b (89)	6.01^c (73)	4.05^bc (49)
MR211	9.85^ab (100)	9.44^a (96)	8.52^a (87)	5.96^a (61)
MR219	10.28^ab (100)	8.98^abc (88)	6.41^bc (62)	3.81^d (36)
MR232	9.64^ab (100)	9.24^a (96)	7.95^ab (83)	6.12^a (64)
BRRI dhan29	9.55^abc (100)	7.54^b (79)	6.0^c (63)	3.73^d (39)

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