The Hybrid Rice Technology Unit (HRTU) of PhilSCAT submitted three promising hybrid rice lines to the National Cooperative Testing (NCT) this dry season (DS) 2016.
The three (3) lines submitted are LP 952, JY-4H and PhilSCAT 9 (P9) which already underwent two seasons of preliminary yield trials. However, P9 had undergone only 2 season of On-farm adaptability trials while LP952 had undergone two seasons of techno-demo.
JY-4H was bred by Hu Ji Yin, a former Chinese hybrid rice expert assigned at PhilSCAT in 2014 before he turned it over to NCT for adaptability trials. LP 952 is a Chinese hybrid variety by Longping HighTech subjected for testing here in the Philippines through PhilSCAT TCP II while P9 is a locally bred line produced by the Center.
According to Erickson Frediles, PhilSCAT science research specialist, the three promising lines exhibited good performance in terms of yield and resistance to pests and diseases.
LP 952 with maturity days of 117 performed best during the dry season 2016 technology demonstration in Vintar, Ilocos Norte compared to other sites in Luzon with a recorded yield 10 tons per hectare at the said site.
Moreover, PhilSCAT 9, with maturity days of 120 had the highest record in terms of yield in San, Nicolas, Ilocos Norte with a total of 10.3 tons per hectare recorded during the 2014 dry season through the On-farm adaptability trial.
“LP 952 has a good performance since it is not that affected by stem borer and brown leaf hopper compared to the other varieties in the market. But it also depends on the farmer’s pest management practice and spraying of the right pesticides,” Frediles said.
Moreover, the three (3) promising hybrid varieties have successfully passed the grain quality evaluation done at the Center’s Analytical Laboratory.
According to Erick Allain C. Flores, PhilSCAT science research analyst, as per sensory testof the three varieties when cooked has no aroma, no-off-odor, and no-off-taste.
Likewise, sensory attributes of raw milled rice of the three varieties showed no aroma, no-off-odor, and quite brittle while LP 952 and JY-4H are both white in color, slightly glossy and translucent unlike JY-4H which is slightly creamish in color, dull, and can be seen with 21-40% white belly.
Among the three varieties submitted to NCT, P9 has the highest milling recovery for both brown rice and total milled rice with 79.46% and 70.21% respectively and can be classified as Premium Milled Rice while LP 952 is classified as Grade 1, and JY-4H as Grade 2.
As of 2016, Longping 937 and PhilSCAT 8 are now ready for deliberation by the National Varietal Improvement Group after completing the four season preliminary yield performance done by the NCT.
As one of the major activities of the center, the Hybrid group has already bred 125 parent materials this season and test crossed 89 F1 combinations including 7 parent materials and 10 F1 combinations of Pakistani origin.
Frediles said, “Just like our activities before, we will continue what’s on the work plan. The supposed to be techno-demonstration should be done already but because of the delay in the delivery of seeds and budget release the activity implementation was also postponed.”
Furthermore, the three lines passed to NCT came from the 43 lines subjected for Preliminary Yield Trial (PYT) planted at the PhilSCAT’s techno demo farm. JMRarama