Written by Web Team
New and high yielding rice varieties, with maximum yield potential ranging from 9-12 t/ha, are being promoted by the Philippine Rice Research Institute (PhilRice) to help farmers increase their production.
Thelma F. Padolina, division head of PhilRice`s Plant Breeding and Biotechnology Division, said the varieties, released since 2009, are noted for their 1 t/ha-yield advantage over the previously bred varieties.
The inbred varieties, suited for the irrigated lowlands, include NSIC Rc212 (Tubigan 15), Rcc214 (Tubigan 16), Rc216 (Tubigan 17), Rc222 (Tubigan 18), Rc224 (Tubigan 19), and Rc226 (Tubigan 20).
Registering better performance than the check varieties, PSB Rc82 and PSB Rc18, NSIC Rc212 and NSIC Rc214 could yield up to 10 t/ha when transplanted and have an average yield of 6 t/ha.
NSIC Rc212 matures within 111 and 115 days under direct wet-seeded and transplanted conditions, respectively. On the other hand, NSIC Rcc214 matures in 116 days when transplanted and 110 when direct wet-seeded. Both varieties have resistance against brown plant hopper (BPH), green leaf hopper (GLH), and yellow stem borers (YSB). However, Padolina warned that they are susceptible to tungro.
With an average yield of 6 t/ha, NSIC Rc216 and NSIC Rc222 are promoted for their moderate resistance against BPH, GLH, and YSB. However, they are likewise susceptible to tungro.
Rc216 matures in 104 days when direct wet-seeded and 112 days when transplanted. Rc222 has maturity days of 106 and 114 when direct wet-seeded and transplanted, respectively.
Meanwhile, NSIC Rc224 has an average yield of 5.7-5.8 t/ha across season and matures in 111 days. The long and slender grained-variety is moderately resistant to GLH, BPH, blast, and stem borer. However, it is not for areas regularly stricken with tungro and bacterial leaf blight.
On the other hand, NSCI Rc226 is also an early maturing variety that produces an average harvest of 6.2 t/ha across season. It matures in 112 days when transplanted and 104 days when direct wet-seeded. The variety is also moderately resistant to GLH, BPH, and YSB. Unlike other varieties, Rc226 could moderately withstand tungro attacks.
Foundation seeds of the varieties are available at PhilRice`s Income Generation Office.