Comparative Performance of Hybrid and Elite Inbred Rice Varieties with respect to Their Source-Sink Relationship
Table 6
Preanthesis dry matter accumulation in shoot and its translocation to the grain of hybrid and inbred rice varieties at different dates of planting in dryseasons, 2008-200 and 2009-201.
Variety × planting dates
Shoot dry matter at preanthesis (g m−2)
Shoot dry matter at maturity (g m−2)
Changes in shoot dry matter (g m−2)
Shoot reserve translocation (%)
2008-09
2009-10
2008-09
2009-10
2008-09
2009-10
2008-09
2009-10
BRRI hy. dhan2
20 December
846.95
729.92
691.99
575.55
154.95ab
155.37a
18.23a
21.10a
05 January
807.36
713.06
662.39
587.56
145.18ab
125.50ab
17.96ab
17.76bc
20 January
649.59
661.62
544.86
557.51
104.73cd
104.10b
16.14b
15.78c
05 February
584.34
559.51
510.55
498.48
73.79de
61.03cd
12.51c
10.84d
Hybrid Heera2
20 December
925.37
784.71
746.50
637.06
178.87a
147.65a
19.39a
18.68ab
05 January
827.57
731.06
666.04
605.29
158.53ab
133.87ab
19.53a
18.23bc
20 January
741.76
662.03
603.25
592.38
138.51bc
69.65c
18.68ab
10.57d
05 February
615.54
602.53
595.45
560.61
53.43e
41.92cd
8.12d
7.00e
Inbred BRRI45
20 December
708.36
596.02
622.57
534.09
85.76de
61.93cd
10.85cd
10.29d
05 January
729.69
569.71
640.89
507.80
61.81e
61.8cd
12.11c
11.03d
20 January
610.48
549.82
540.34
513.47
70.14de
36.34d
11.32c
6.54e
05 February
557.94
518.73
502.82
481.91
55.12e
36.82d
10.01cd
7.03e
Variety
**
**
*
**
**
**
**
**
Planting date
**
*
**
NS
**
**
**
**
CV (%)
8.82
8.06
8.97
6.59
19.52
21.11
12.69
11.50
Within a column, means followed by the same letter(s) are not significantly different at 5% level of probability by DMRT. site SAU, Dhaka. site BRRI, Gazipur. NS: nonsignificant at 5% level of significance. Significant at 5% level of significance. Significant at 5% level of significance.
