Comparative Performance of Hybrid and Elite Inbred Rice Varieties with respect to Their Source-Sink Relationship
Table 3
Yield and its attributes of hybrid and inbred rice varieties at different dates of planting in dryseasons, 2008-200 and 2009-201.
Variety × planting date
Panicles m−2
Spikelets panicle−1
Filled spikelets (%)
1000-grain weight (g)
Grain yielda (t ha−1)
2008-09
2009-10
2008-09
2009-10
2008-09
2009-10
2008-09
2009-10
2008-09
2009-10
BRRI hybrid dhan2
20 December
278.5
270.4
138.0
131.9
79.04ab
79.5ab
26.53
26.84
7.42ab
6.78ab
05 January
265.3
247.2
132.7
133.3
78.73ab
75.5bcd
26.93
26.76
6.84bc
6.10bc
20 January
246.5
235.1
133.6
130.1
76.23b
70.2ef
27.06
26.43
6.06cd
5.66cd
05 February
239.4
216.7
131.3
131.0
66.49c
66.4fg
26.96
26.88
5.34de
4.44f
Hybrid Heera2
20 December
310.5
284.8
130.2
131.8
79.00ab
78.3abc
26.61
26.93
8.03a
7.31a
05 January
285.0
256.9
139.7
136.4
77.70ab
75.2cd
27.39
26.04
7.65ab
6.21bc
20 January
290.4
248.6
125.4
133.5
78.67ab
72.6de
27.03
26.54
7.28ab
5.59cd
05 February
260.7
241.3
128.8
122.3
64.81c
63.2g
27.21
27.14
5.12e
4.37f
Inbred BRRI45
20 December
322.3
308.9
101.1
95.2
81.40ab
81.7a
25.86
25.54
6.16cd
5.52cd
05 January
303.8
278.7
105.2
97.08
82.39a
80.7a
25.54
25.16
5.74de
5.23de
20 January
292.9
276.7
99.3
98.51
81.28ab
78.8abc
26.05
25.22
5.62de
4.77ef
05 February
283.5
269.9
96.8
94.5
80.99ab
78.2abc
25.33
25.36
5.50de
4.57ef
Variety
**
**
**
**
**
**
**
**
**
**
Planting date
*
**
NS
NS
NS
**
NS
NS
**
**
CV (%)
8.71
9.30
6.64
8.80
4.13
3.31
3.86
3.06
8.24
7.42
Within a column for each site, means followed by the same letters are not significantly different according to DMRT at 5% level of significance. site SAU, Dhaka. site BRRI, Gazipur. NS: nonsignificant at 5% level of significance. Significant at 5% level of significance. Significant at 1% level of significance. 14% moisture contained in yield.
