Manile, The Philippines
May 3, 2005
By Sosimo Ma. Pablico, Ph.D.
The Philippine Agriculture Magazine, February 2005,
The Manila Bulletin via
SEAMEO SEARCA BIC
Take your pick.
The National Seed Industry
Council (NSIC) of the Philippines has again approved the
release of eight new rice and 16 new corn varieties for
commercial planting, giving farmers wider choice on the
varieties they wish to plant. The yield performance of the new
varieties was earlier tested in the National Cooperative Trials
by their respective Technical Working Groups, which recommended
their release as varieties.
The chair of the Rice Varietal Improvement Group (RVIG), Dr.
John C. de Leon of the Philippine Rice Research Institute
(PhilRice), said the new rice varieties consist of three hybrid
and five inbred rice. PhilRice bred four of the new inbred rice
varieties, while the University of the Philippines Los Baños
(UPLB) bred one glutinous rice variety, NSIC Rc13 (Malagkit 1).
Private companies bred the hybrids. The new PhilRice varieties
are NSIC Rc128 (Mabango 1), NSIC Rc130 (Tubigan 3), NSIC Rc15
(Malagkit 2), and NSIC Rc17 (Malagkit 3). Mabango 1 is the first
aromatic rice variety bred by PhilRice. The three new hybrid
rice varieties - NSIC Rc124H (Mestizo 4), NSIC Rc126H (Mestizo
5), and NSIC Rc132H (Mestizo 6) - were bred by Bayer Crop
Science, Monsanto Philippines and SL Agritech, respectively.
These hybrid varieties are recommended only for specific areas.
On the other hand, Dr. Othello B. Capuno of the UP Los Baños
College of Agriculture, the chair of the Corn and Sorghum
Technical Working Group (CSTWG), said the new corn varieties
are: DK 9051, 30B80, NT 8860, DK 979, DK 9132, CW 821, CW 811,
CW 801, IES Cn 5, IES Glut 4, Bioseed 9888, Bioseed 9909, DK
3668w, Bioseed 9744, USMARC TX 010, and USMARC TX 012.
Both DK 9051 and IES Glut 4 are recommended for nationwide
planting. On the other hand, 30B80, NT 8860, DK 979, DK9132, CW
821, CW 811, CW 801, and IES Cn 5 are recommended for Luzon. DK
979 and DK 9132 are also adapted in Visayas.
Bioseed 9888, Bioseed 9909 and Bioseed 9744 are recommended only
for Mindanao, while Bioseed 9744, DK 3668w, USMARC TX 010 and
USMARC TX 012 are for Visayas.
All of the new corn varieties can be planted during the dry and
wet seasons. Only IES Glut 4 is a white glutinous corn.
Likewise, IES Cn 5 and IES Glut 4 are open-pollinated varieties
(OPVs), while USMARC TX 010 and USMARC TX 012 are white hybrids.
The rest are yellow hybrids.
The seeds of OPVs can be planted again after the first crop as
long as farmers maintain their seed purity, while those of
hybrids can no longer be planted after one season, as their seed
vigor is already diminished. The DK varieties were bred by
Monsanto Philippines, NT varieties by Syngenta Philippines, CW
varieties by B.M. Domingo, Inc. (CornWorld), Bioseed varieties
by Bioseed Research Philippines, IES varieties by the Cagayan
Valley Integrated Agricultural Research (CVIARC) of the
Department of Agriculture, and USMARC varieties by the
University of Southern Mindanao Agriculture Research Center.
New rice varieties
Suited for irrigated lowlands, Mabango 1 produced in
performance trials 5,452 to 5,501 kilograms a hectare (kg/ha)
for three seasons. Its yield was higher than that of the check
variety IR65 by 13.7 percent. It matures in 118 days from
seeding. Highly acceptable in cooked and raw forms, it has good
milling and rice recoveries. It is resistant to deadheart, which
is caused by stemborers during the vegetative stage, and has
intermediate resistance to bacterial leaf blight (BLB), sheath
blight (ShB), and whiteheads, also caused by stemborers during
the reproductive stage.
However, de Leon said Mabango 1 should not be planted in areas
affected by tungro, blast, green leafhoppers, yellow stemborers,
and brown planthoppers.
NSCI Rc130, or Tubigan 3,
was produced through anther culture from the traditional Wagwag
variety. It is early maturing - 104 days as direct wet seeded
and 108 days as transplanted rice. Its yield performance under
both transplanted (4,795 to 5,753 kg/ha) and direct wet seeded
(4,615 to 5,333 kg/ha) cultures is fairly acceptable. Under
transplanted culture, its yield was higher by 5.3 percent over
the check variety PSB Rc28 during the wet season. Tubigan 3 also
has intermediate resistance to blast, BLB, green leafhoppers,
and whiteheads, and moderate resistance to deadhearts. De Leon
said Tubigan 3 should not be planted in tungro hot spot areas.
It also requires slow drying for better physical and milling
Malagkit 1 produced 4,480 to 4,764 kg/ha, which is
already considered high for a glutinous variety. Its yield was
higher by 13.6 percent than the check variety IR65 during the
dry season. It matures in 120 days. It has intermediate
resistance to BLB, yellow stemborers and white heads. Its
milling and head rice recoveries are acceptable. In its cooked
form, taste test panels gave it a better preference score and
acceptability rating than IR65. However, Malagkit 1 should not
be planted in areas with regular incidence of tungro, blast and
NSIC Rc15, or Malagkit 2,
produces high yield, especially during the dry season. For three
seasons its yield ranged from 4,910 to 66,665 kg/ha, with an
average 5,412 kg/ha. Its yield was higher by 12.3 percent than
IR65. It matures in 119 to 126 days. It has a wide spectrum of
resistance against diseases and insect pests. It possesses
intermediate resistance to blast, BLB, ShB, whiteheads, and
yellow stemborers. However, it should not be planted in areas
with regular infestation of tungro, green leafhoppers and brown
NSIC Rc17, or Malagkit 3, is suited for irrigated
lowlands. Its average yield across seasons was 4,238 kg/ha,
which was 7.2 percent higher than IR65. Its average yield during
the dry season (6,271 kg/ha) is much higher than during the wet
season (2,883 kg/ha), which means that it is more advisable to
plant it during the dry season. Its milling and head rice
recoveries are good and it is acceptable both in cooked and raw
forms. On the average, it matures in 117 days. It has
intermediate resistance to blast, BLB, ShB, rice tungro virus,
yellow stemborers and whiteheads.
Mestizo 4, or Bigante,
produced an average yield of 5,671 kg/ha across seasons and
showed consistent yield performance (6,345 to 6,361 kg/ha) in
Isabela. It matures in 118 days. Its milling potential is
acceptable, but has a high percentage of chalky grains. It
obtained a better preference score in the cooked form than the
popular variety IR64, Mestizo 1, and PSB Rc18. Its acceptability
rating in both raw and cooked forms is also better than these
varieties. It is resistant to blast and has intermediate
resistance to BLB, ShB, whiteheads and yellow stemborers.
However, it should not be planted in areas frequently affected
by tungro, green leafhoppers and brown planthoppers.
On the other hand, Mestizo 5, or Magilas, produced 6,231
kg/ha, which matures early in 110 days and is highly acceptable
in both cooked and raw forms even as it has a high percentage of
chalky grains. It is resistant to blast and has intermediate
resistance to BLB, ShB, green leafhoppers, yellow stemborers,
and tungro. However, it is highly sensitive to temperature
fluctuations and should not be planted in areas affected by
tungro, whiteheads, and brown planthoppers.
Mestizo 6, or SL 8H, produced an average yield of 5,914
kg/ha, which is comparable with Mestizo 1. It matures in 113
days and has good milling and head rice recoveries. It is also
resistant to blast and has intermediate resistance to BLB, ShB,
and yellow stemborers. However, it should not be planted in
areas with high incidence of tungro.
New corn varieties
DK 9051 (NSIC Cn2004-145) is highly adapted to growing
conditions in major and potential corn growing areas in the
country. It can be planted at a relatively high population
density due to its semi-erect-foliage. In yield performance
tests conducted in 18 locations nationwide, DK 9051 produced an
average 7.68 t/ha in four seasons. Its highest yield (11.49
t/ha) was obtained at UPLB. It matures early (104 days in the
dry season and 102 days in wet season). Its ears are filled very
well and its husks can be easily removed during harvesting.
Farmers prefer varieties with this trait, as it facilitates
easier harvesting. Developed by Pioneer Hi-Bred Philippines,
30B80 (NSIC Cn2004-147) yielded an average 7.91 t/ha in seven
locations in Luzon in four seasons and consistently yielded more
than 10 t/ha in Ilagan, Isabela. It is a short variety and,
therefore, is resistant to stalk lodging in windy areas. It
matures in 103 to 105 days.
NT 8860 (NSIC Cn2004-149) yielded an average 8.9 t/ha in
nine tests in six locations for two seasons, but it could yield
as high as 11 t/ha. It fits well in lowland rice-corn cropping
systems. It matures in 102 days during the wet season and 106
days during the dry season.
Recommended for both Luzon and Visayas, DK 979 (NSIC
Cn2004-154) yielded an average 8.45 t/ha in Luzon and 7.0 mt/ha
in Visayas. Its highest yields were 10.85 t/ha in Ilagan,
Isabela, and 10.11 t/ha in Ubay, Bohol. Its yield was higher
than DK 818 by 14.44 percent in Luzon and 5.3 percent in
DK 979 matures early in 101 days during the wet season and 105
days during the dry season. Its ears are filled very well with
high (80 percent) shelling recovery. The ears are also longer
than those of DK 818, also produced by Monsanto Philippines.
DK 9132 (NSIC Cn2004-155), also recommended for Visayas,
yielded an average 8.53 t/ha in Luzon and 7.28 mt/ha in Visayas.
Its highest yields were 11.35 t/ha in Ilagan, and 10.22 t/ha in
Ubay. Its yield is higher than DK 818 y 15.6 percent in Luzon
and 8.0 percent in Visayas. It matures in 101 days and 105 days
during the wet and dry season, respectively. Its ears, which are
longer than those of DK 818, are filled very well with a
shelling percentage of 79 percent.
CW 821 (NSIC Cn2004-156) yields higher during the dry
season provided irrigation water is available. It produced an
average 7.55 t/ha in 10 trials in six locations. It is
relatively dwarf (137 cm during the dry season) and, hence,
adaptable in windy areas. It matures in 101 days during the wet
season and 104 days during the dry season.
On the other hand, CW 811 (NSIC Cn2004-157) yielded an
average 7.39 t/ha. It can be grown in any season provided water
supply is properly managed. Its highest yield was 9.14 t/ha in
Batac, Ilocos Norte. It is also relatively dwarf, 133 cm during
the dry season and 175 cm during the wet season.
CW 801 (NSIC Cn2004-158) produced an average 7.55 t/ha
and its highest yield (8.95 t/ha) was obtained in Ilagan. It is
146 cm at maturity during the dry season and 193 cm during the
IES Cn 5 (NSIC Cn2004-161) yielded an average 6.30 t/ha
and its highest yield (8.83 t/ha) was obtained in Batac. It
matures in 105 days in the dry season and 100 days in the wet
season. At maturity, it is 128 cm tall during the dry season and
176 cm during the wet season, making it more resistant to
lodging than other varieties.
In contrast, IES Glut 4 (NSIC Cn2004-162) yielded an
average 5.3 t/ha in 29 tests nationwide on four seasons. Its
highest yields were obtained at the Pangasinan State University
(9.33 t/ha) in Sta. Maria, Pangasinan. It matures early (98 days
in the dry season and 97 days in the wet season) and, therefore,
is adapted to short growing seasons.
The USM variety USMARC TX 010 (NSIC Cn2004-159) produced
an average 5.08 t/ha. It matures in 102 to 103 days during the
dry and wet season, respectively. Its ears have an excellent
fill with 80 percent shelling recovery and measure an average 14
centimeters (cm). However, it is relatively tall-200 cm during
the dry season and 219 cm during the wet season.
USMARC TX 012 (NSIC Cn2004-160), on the other hand,
yielded an average 5.34 t/ha even as its ears are 10 cm long
with 74 percent shelling recovery. It matures in 102 to 104 days
in the dry and wet season, respectively. At maturity, it is 206
cm tall during the dry season and 215 cm during the wet season.
It is expected that both USMARC TX 010 and USMARCH TX 012 would
improve white corn production in Visayas where white corn is a
staple food to people in the rural areas.
Bioseed 9888 (NSIC
Cn2004-150) yielded an average 7.21 t/ha due to its long ears
(18 cm). It matures in 103 and 105 days in the dry and wet
season, respectively. However, it is relatively tall - 226 cm
during the dry season and 229 cm during the wet season.
Bioseed 9909 (NSIC Cn2004-151) has the highest yield
among the Bioseed varieties - 7.27 t/ha - even with a 76 percent
shelling recovery. Its ear length is 17 cm. It matures in 100
days in both seasons and stands 203 cm in the dry season and 159
cm in the wet season. Bioseed 9744 (NSIC Cn2004-152) has
the lowest yield, 5.15 t/ha, among the yellow hybrids. This is
due to its short ears (14 cm) and relatively low shelling
recovery (72 percent). However, it is early maturing - 101 days
in the dry season and 99 days in the wet season. It is also
relatively dwarf - 158 cm in the dry season and 194 cm in the
wet season. Thus, it is adaptable to windy areas.
Since farmers are the final arbiters on whether a variety should
stay or not, try them now and tell us your experiences on them.
Please send your comments to