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Frontline
Demonstrations
of Hybrids
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Creating awareness
about the benefits of hybrid rice to the end users i.e. the
farming community is considered as the most important activity
in order to popularize hybrid rice in the country. This can
be achieved by conducting frontline demonstrations in the
farmers field. During 1999, two hundred fifty frontline demonstrations
were conducted with 11 released hybrids in 7 target states.
The minimum unit of each demonstration was one hectare. The
details on the number of demonstrations, those found promising
and the yield advantage are furnished in Table 6.2. Data from
Andhra Pradesh was partly received and the same are included
in the result presented here.
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It is evident
from the table that among the 11 hybrids evaluated in frontline
demonstrations, 8 of them have reconfirmed their superiority
with an yield advantage ranging from 1.4 t/ha to 3.0 t/ha.
However, the performance of hybrids ADTRH 1, CORH 2 and CNRH
3 was not encouraging. The results indicated that the hybrid
CNRH 3 which has been released for boro season in West Bengal
is not suitable for the kharif season. The hybrid PHB 71 which
has been released by CVRC performed exceedingly in Andhra
Pradesh, Maharashtra and West Bengal. The performance of hybrids
was found to be superior in more than 75 percent of test locations.
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Most of the farmers
who cultivated hybrids expressed satisfaction over the superiority
of hybrids in respect of yield. Interestingly, many farmers
felt that hybrids had better tolerance against pest and diseases
under the similar management conditions. These demonstrations
have convinced the farmers that, they can grow a bumper crop
with a seed rate of 6-8 kg/acre and by planting a single seedling/hill.
Though they had reservations initially, they become confident
after seeing the results by themselves. Large number of frontline
demonstrations are planned for the ensuing seasons.
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Performance
of hybrids in frontline demonstrations (Kharif, 1999)
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State / Province |
Hybrid(s) |
No. of demonstrations |
Mean grain yield (kg/ha) |
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Hybrid |
Check |
Advantage
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Andhra Pradesh |
APHR 2
DRRH 1
PHB 71 |
11 (9)
13 (9)
13 (11) |
6650 6563 6797 |
5000 5064 4686 |
1650
1499
2111
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Karnataka |
KRH 2 |
55 (43) |
7599 |
5798 |
1801
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Maharashtra |
Sahyadri
PHB 71 |
24 (17)
5 (5) |
5618
7596 |
3660
4400 |
1958
3196
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Tamil Nadu
(Dry season)
(Wet season) |
MGR 1
CORH 2
ADTRH 1
ADTRH 1 |
6 (3)
8 (2)
7 (0)
8 (3) |
6894
5859
5506
6327 |
5450
5270
5258
5766 |
1444
589
248
561
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Eastern U.P. |
Narendra Sankar Dhan 2 |
10 (10) |
8341 |
5306 |
3035
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Eastern U.P. |
Narendra Sankar Dhan 2 |
10 (10) |
8341 |
5306 |
3035
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Western U.P. |
Pant Sankar Dhan 1 |
10 (6) |
7167 |
4083 |
3084
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West Bengal |
CNRH 3
PHB 71 |
15 (3)
10 (9) |
3531
4760 |
3346
3321 |
185
1439
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| Performance
of hybrids in frontline demonstrations (1999- 2000) |
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To demonstrate
the advantage of cultivation of hybrids vis-à-vis inbred varieties
among the rice farmers, and to create the awareness about
the potential benefit of this technology, front-line demonstrations
of released hybrids were conducted. During the year 1999-2000,
six hundred and thirty one front-line demonstrations were
conducted with eight released hybrids in eight states (Number
of demonstrations conducted state-wise are depicted in Graph
- 1. The minimum unit of each demonstration was one hectare.
The details of number of demonstrations in various states,
yield of hybrid and check and the yield advantage for rabi
1999-2000 and kharif 2000 seasons are given in Table - 2 the
performance of the hybrids in front-line demonstrations is
depicted in Graphs - 2 and 3 respectively.
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| State |
Hybrid(s) |
No. of demonstrations |
Mean grain
yield (t/ha) |
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Hybrid |
Check |
Advantage |
| Rabi 1999-2000 |
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Karnataka |
KRH-2 |
79(45) |
7.65 |
6.10 |
1.55 |
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Tamil Nadu |
CORH-2 |
33(8) |
5.84 |
5.33 |
0.55 |
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Maharashtra |
Sahyadri |
50 (36) |
5.07 |
3.66 |
1.41 |
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West Bengal |
CNRH-3
PA 6201 |
35 (12)
28(13) |
5.13
5.65 |
4.55
4.58 |
0.58
1.07 |
| Kharif
2000 |
|
A.P. |
DRRH-1
PHB-71 |
36 (36)
11(11) |
7.70
7.89 |
5.12
5.42 |
2.58
2.47 |
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Karnataka |
KRH-2 |
110 (86) |
7.54 |
5.75 |
1.79 |
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Maharashtra |
Sahyadri |
47 (12) |
3.19 |
2.42 |
0.77 |
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Orissa |
PA 6201
PHB-71
DRRH-1 |
38 (21)
37(14)
30(5) |
5.01
4.94
4.85 |
3.81
3.84
4.57 |
1.20
1.10
0.29 |
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U.P. |
NSD-2
PSD-1
PHB-71 |
30 (27)
27(19)
21(18) |
7.62
6.49
6.58 |
5.54
4.90
4.62 |
2.08
1.59
1.96 |
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Haryana |
HKRH-1008 KRH-2 |
14(9)
5(2) |
7.52
7.08 |
6.40
6.64 |
1.12
0.44 |
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Most of the farmers
who cultivated hybrids expressed satisfaction over the superiority
of hybrids in respect of yield. Interestingly, many farmers
felt that hybrids had better tolerance against pest and diseases
under the similar management conditions. These demonstrations
have convinced the farmers that, they can grow a bumper crop
with a seed rate of 6-8 kg/acre and by planting a single seedling/hill.
Though they had reservations initially, they become confident
after seeing the results by themselves. Large number of frontline
demonstrations are planned for the ensuing seasons.
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During the rabi
season, in 55% of the demonstrations and in kharif season
in 66% of the demonstrations the yield advantage of the hybrid
was more than 1.0 t/ha, in the rest of the demonstrations,
it ranged from 200-900 kg/ha.
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During rabi season,
performance of KRH-2 in Karnataka, Sahyadri in Maharashtra
and PA 6201 in West Bengal (Boro Season) was impressive with
mean yield advantage of 1.07 to 1.55 t/ha. Mean yield advantage
of CORH-2 in Tamil Nadu and CNRH-3 in West Bengal was marginal
over the check varieties (0.55 and 0.58 t/ha respectively)
- Graph - 2.
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During kharif
season, DRRH-1 and PHB-71 in Andhra Pradesh, KRH-2 in Karnataka,
PA-6201 and PHB-71 in Orissa, NSD-2 Pant Sankar Dhan-1 and
PHB-71 in Uttar Pradesh performed well with a mean yield advantage
of 1.10 to 2.58 t/ha over the respective check varieties (Graph
3).
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Farmers became
convinced of superiority of hybrids in yield potential after
conducting these trials, in addition to getting confident
about raising a bumper crop by using the seed rate of only
6-8 kg/acre and planting a single seedling. Large number of
front-line demonstrations are planned to be conducted in ensuing
seasons for popularization and large adoption of hybrid rice.
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