Plant Variety Protection-newly registered PhilRice inbred rice genotypes for irrigated lowland

Issue Date

12-2013

Abstract

Five PhilRice-bred rice genotypes were approved by the Bureau of Plant Industry-Plant Protection Office in December 2012. These genotypes were selected after in underwent DUS (distinct, uniform, stable) test in 2012 at the Philippine Rice Research Institute Central Experiment Station. PR32220 was derived from IR69800-5-3-1-1/LRJ-5-5 cross. It matures in 117 days, 106 cm in height and with an average of 11 tillers per plant. The yield was 8.2 t haˉ¹ in DS and 4.8 t haˉ¹ in WS. PR35766 was derived from PSB Rc14/ PR31561-AR32-11-63-3 cross. It matures in 111 days, 103 cm in height and with an average of 14 tillers per plant. The yield was 7.4 t haˉ¹in DS and 4.6 t haˉ¹ during WS. PR37273 was derived from PSB Rc96/ AR32-19-3-3 cross. It is semi-dwarf at 105 cm, with medium-tillering of 14 tillers per plant, and matures in 110 days. In 2012, the yield was6.4 t haˉ¹during DS and 5.0 t haˉ¹ in the WS. It has a premium total milled rice yield of 71.9% which is comparable to the check PSB Rc18. PR37598 was derived from C754WH-12-1-1/JASMINE cross. It matures in 112 days, has intermediate plant height of 113 cm, with medium-tillering of 12 tillers per plant. The yield was 7.7 t haˉ¹ in the DS and4.1 t haˉ¹ in WS. It has low amylose content of 18.0% making it generally soft and sticky when cooked. PR39728 was derived from MX-B-27/NSIC Rc144 WT cross. It matures in 108 days, has intermediate height at 120 cm and with medium-tillering of 10 tillers per plant. The yield was 9.0 t haˉ¹ during DS and 4.4 t haˉ¹ in WS. It has a very good brown rice yield which is significantly superior to the 2 check varieties with premium grade classification of 79.5%.

Source or Periodical Title

Philippine Journal of Crop Science

ISSN

0115-463x

Volume

38

Issue

3

Page

31-36

Document Type

Article

Frequency

tri-quarterly

Physical Description

tables, pictures

Language

English

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