Table 5 Leaf proline content (µg g^-1) of two soybean genotypes (Coraline and Speeda) at 3 different sampling dates as affected by hydrogen peroxide foliar spray application under drought stress conditions (D: drought from R1 till R2 stage, D1: drought from R1 till R2 stage + 1 mM hydrogen peroxide, D5: drought from R1 till R2 stage + 5 mM hydrogen peroxide, D10: drought from R1 till R2 stage + 10 mM hydrogen peroxide, CD: continuous drought starting from R1 stage, CD1: continuous drought starting from R1 stage + 1 mM hydrogen peroxide, CD5: continuous drought starting from R1 stage + 5 mM hydrogen peroxide, CD10: continuous drought starting from R1 stage + 10 mM hydrogen peroxide).

Sampling date	3 days after drought stress application at R1 stage		3 days after R3 stage started		At the end of R4 stage
Treatment	Coraline	Speeda	Coraline	Speeda	Coraline	Speeda
Control	30.7^d	33^c	43.4^c	47.3^c	39.3^b	42^b
D	226.4^c	272.6^b	183.4^b	240.3^b	92.7^a	112.9^a
D1	253.9^b	391.7^a	142.9^b	166.7^b	81.1^a	100.5^a
D5	280^a	379.3^a	127.6^b	186.2^b	74.6^a	103.3^a
D10	275.8^ab	365.4^a	130^b	180.8^b	79.9^a	101^a
CD	228.3^c	270.6^b	402.7^a	468.1^a	NA	NA
CD1	255.1^b	390.6^a	449.5^a	521.7^a	NA	NA
CD5	278.4^a	376^a	472.8^a	485.5^a	NA	NA
CD10	275^ab	365.3^a	411.4^a	447^a	NA	NA

All values are the means of 3 replicates. In each genotype, different letters indicate significant differences at .05 level as indicated by Duncan’s multiple range test. NA: Not Applicable.

Quick links

Search