Heterosis studies in diallel crosses of maize for yield and yield attributing traits in maize ( Zea mays L.) over locations
Table 5. Standard heterosis, heterobeltiosis and average heterosis for top five crosses for each trait in maize
Standard heterosis
Average
Mean
Character / Cross
Over DHM-
Over 900 M
Heterobeltiosis
Heterosis
Performance
117
Gold
1. Days to 50 per cent tasseling
BML-2782 X BML-5233-5
-17.66**
-19.12**
-20.52**
-10.71**
61.11
CM-211 X BML-5233-5
-16.62**
-18.09**
-18.69**
-9.06**
61.89
BML-5233-5 X BML-2910
-16.32**
-17.79**
-13.87**
-5.97**
62.11
BML-5233-5 X BML-2
-11.68**
-13.24**
-3.12
2.70
65.56
BML - 2486 X BML-2
-10.63**
-12.21**
-13.85**
-8.29**
66.33
2. Days to 50 per cent silking
BML-2782 X BML-5233-5
-17.61**
-18.56**
-21.82**
-12.04**
62.89
CM-211 X BML-5233-5
-17.03**
-17.99**
-18.80**
-9.88**
63.33
BML-5233-5 X BML-2910
-13.54**
-14.53**
-14.16**
-5.34**
66.00
BML-5233-5 X BML-2
-11.79**
-12.81**
-6.19**
0.25
67.33
BML- 2486 X BML-2
-9.46**
-10.50**
-11.52**
-7.78**
69.11
3. Days to maturity
CM-211 X BML-5233-5
-16.04**
-15.62**
-15.20**
-11.57**
94.22
BML-5233-5 X BML-2910
-12.77**
-12.34**
-15.37**
-10.06**
97.89
BML-2782 X BML-5233-5
-10.89**
-10.45**
-15.97**
-9.50**
100.00
BML-2486 X BML-2910
-10.30**
-9.85**
-12.97**
-10.78**
100.67
BML-2486 X BML- 2
-9.70**
-9.25**
-8.71**
-8.30**
101.33
4. Plant height (cm)
CM-211 X BML-15
22.32**
27.02**
54.60**
63.31**
279.06
BML-7 X BML-3044
7.32**
11.45**
42.82**
55.37**
244.83
BML-2 X BML-3044
7.30**
11.43**
37.89**
52.39**
244.80
BML-15 X BML-2910
5.68
9.75**
49.52**
78.98**
244.11
BML-2782 X BML-3044
2.99
6.95
54.31**
58.76**
234.97
5. Ear height (cm)
CM-211 X BML-3044
32.36**
61.70**
92.82**
94.49**
127.92
CM-211 X BML-6
28.86**
57.42**
43.14**
62.42**
124.53
BML-6 X BML-2910
23.52**
50.90**
37.22**
103.04**
119.38
CM-211 X BML-15
19.42**
45.88**
65.48**
69.61**
115.41
BML-2 X BML-3044
17.29**
43.29**
57.95**
65.52**
113.36
6. Ear girth (cm)
CM-211 X BML-6
9.49*
10.09*
19.93**
28.31**
15.63
BML-7 X BML-3044
8.02*
8.61*
32.82**
33.59**
15.42
BML-6 X BML-7
6.23
6.81
32.14**
32.98**
15.17
BML-2486 X BML-6
4.12
4.69
31.18**
38.29**
14.87
CM-211 X BML-3044
3.89
4.46
13.79**
20.37**
14.83
277