Growth and Physiological Responses of Phaseolus Species to Salinity Stress
Table 2
Effects of external NaCl concentrations on glucose (Glu), fructose (Fru), and sucrose (Suc) of leaves, stem, and roots of Phaseolus species.
Species/Genotype
Leaves
Stem
Roots
NaCl (mM)
mmol kg−1 dry weight
Glu
Fru
Suc
Glu
Fru
Suc
Glu
Fru
Suc
P. vulgaris PvWT
0
4 bz
5 a
46 a
10 a
15 b
64 a
5 c
8 b
32 b
60
8 a
14 b
38 b
10 a
21 a
51 b
9 b
26 a
38 a
90
1 c
1 c
4 c
3 b
3 c
6 c
13 a
30 a
35 a
P. vulgaris PvCS
0
6 b
7 b
42 a
19 b
25 b
50 a
5 b
8 b
50 a
60
17 a
22 a
33 b
36 a
44 a
39 b
16 a
34 a
27 b
90
2 c
2 b
3 c
11 b
15 c
6 c
2 b
4 b
4 c
P. acutifolius PaWS
0
12 c
12 b
41 a
12 b
13 c
47 a
4 c
12 c
48 a
60
22 b
28 a
31 b
15 b
22 b
50 a
10 b
35 b
32 b
90
25 a
29 a
36 b
22 a
31 a
44 a
14 a
50 a
37 b
P. acutifolius PaCT
0
10 b
12 b
34 a
22 a
24 a
47 a
8 b
15 c
51 a
60
24 a
32 a
30 b
21 a
25 a
38 b
8 b
33 b
30 c
90
24 a
31 a
29 b
21 a
26 a
41 b
15 a
52 a
38 b
F-values from ANOVA
NaCl
56.9***
57.4***
576***
3.9ns
8.8*
261.9***
49.8***
91.2***
77.7***
Species
11.8***
8.5***
2.6*
15.3***
5.4***
9.1***
4.2**
13.3***
4.7**
NaCl Species
2.3*
1.8ns
6.7***
6.7***
3.5**
16.4***
16.2***
9.5***
6.9***
zValues are means of six replicates after 20 days of salt exposure. Differences among treatments at P ≤ 0.05 are given according to Duncan multiple range test. ns: not significant, *, **, *** Significant at P ≤ 0.05, P ≤ 0.01 and P ≤ 0.001, respectively.
