Research agency bares climate change-resilient rice varieties
The Philippine Rice Research Institute recently identified two climate change-resilient varieties suitable for irrigated lowlands in the Visayas and Mindanao.
Titled Location-specific irrigated rice varieties resilient to climate change, the study identified NSIC Rc308 (Tubigan 26) and NSIC Rc358 (Tubigan 30) as climate change-resilient varieties with superior performance in irrigated lowland ecosystems.
Thelma Padolina, lead researcher, said that varieties with superior location-specific performance and improved resistance to lodging and biotic stresses must be bred and recommended to help the farmers adapt to climate change.
“The two recommended varieties have relatively high yield advantage over their check varieties,” Padolina said.
“The NSIC Rc308 has a yield advantage of 5.5 percent in the Visayas and 4 percent in Mindanao in contrast with PSB Rc82. NSIC Rc358 outyielded PSB Rc18 by 12 percent,” Padolina added.
NSIC Rc308 and the NSIC Rc358 are 2013 PhilRice-bred varieties.
Under favorable irrigated lowland ecosystems, NSIC Rc308 has a maximum average yield of 10.9 t/ha and matures in 11 days if transplanted.
When direct-seeded, it matures in 105 days and has a maximum yield of 8 tons per hectare. Under the same farming condition, NSIC Rc358 can also attain a maximum average yield of 5.4 t/ha to 9.1 t/ha if transplanted.
Philrice said both varieties are early-maturing. Hence, they can possibly escape stress conditions.
NSIC Rc308 showed superior performance in Zamboanga del Sur, Davao del Sur, Sultan Kudarat, Eastern Samar and Aklan.