Genetic Variability of Agronomic Traits as Potential Indicators of Drought Tolerance in Common Beans (Phaseolus vulgaris L.)
Table 2
Estimates of phenotypic and genetic parameters for the studied traits.
Traits
Level
GCV%
PCV%
h2%
GA
GAM%
DF
Watered
3.10
0.42
3.52
17.61
19.20
88.07
2.46
22.41
Stressed
2.45
0.29
2.74
15.65
11.23
89.42
2.19
19.92
DM
Watered
2.03
0.4
2.43
14.25
15.63
83.54
1.99
18.13
Stressed
7.55
0.4
7.95
27.48
25.58
94.97
3.85
34.97
BP
Watered
0.56
0.35
0.91
1.48
1.52
61.5
1.05
9.52
Stressed
2.00
0.60
2.60
14.14
14.33
79.92
2.02
18.35
PP
Watered
9.60
0.70
10.30
30.98
27.17
73.20
4.34
32.16
Stressed
21.26
0.76
22.02
36.11
36.70
96.54
6.45
22.32
STMLC
Watered
3.02
0.61
3.44
20.45
21.89
77.65
1.85
17.28
Stressed
8.76
0.6
9.03
36.13
33.47
84.25
2.06
19.87
LWP
Watered
0.05
0.09
0.17
2.37
2.28
43.40
0.29
2.86
Stressed
2.73
0.21
2.29
16.80
14.37
60.14
4.27
25.46
HW
Watered
13.01
6.41
19.42
36.07
32.37
66.99
5.05
27.72
Stressed
0.96
0.34
1.30
2.80
2.17
73.85
1.37
12.47
BG
Stressed
0.96
0.34
1.30
2.80
2.17
73.85
1.37
12.47
Watered
0.23
0.29
0.52
1.80
0.87
44.23
0.67
6.10
GP
Stressed
2.20
1.19
3.39
4.83
5.65
64.90
2.08
28.88
Watered
0.07
0.09
0.16
2.65
2.27
43.75
0.37
3.37
YP
Stressed
2.98
0.33
3.31
17.26
15.52
90.03
2.42
21.97
Watered
0.03
0.08
0.11
1.73
1.18
67.27
0.24
2.20
HI
Stressed
14.85
1.09
15.94
28.54
26.57
93.16
5.39
26.32
Watered
0.09
0.09
0.04
1.00
2.01
50.00
0.06
5.57
: genotypic variance; : environmental variance; : phenotypic variance; GCV: genotypic coefficient of variation; PCV: phenotypic coefficient of variation; h2: heritability; GA: genetic advance; GA%: genetic advance as percentage of mean; DF: days to flowering; DM: days to maturity; NBP: number of branches/plant; NPP: number of pod/plant; STMLC: stomatal conductance; LWP: leaf water potential; HSW: 100-seed weight; BAG: biomass aboveground; NGP: number of grain/pod; YP: yield/plant; HI: harvest index.
