Plant Breeding and Biotechnology

Indexed in /covered by CAS, KoreaScience & DOI/Crossref:eISSN 2287-9366   pISSN 2287-9358

Table. 2.

Table. 2.

Number of rice varieties that are disease and insect resistant.

Year Total 1980-1989 1991-2000 2001-2010 2011-
No. of varieties 325 (100) 33 (100) 85 (100) 115 (100) 92 (100)
None 56 (17.2) 4 (12.1) 11 (12.9) 30 (26.1) 11 (12.0)
BL 48 (14.8) 3 (9.1) 18 (21.2) 14 (12.2) 13 (14.1)
BLB 9 (2.8) - 3 (3.5) 5 (4.3) 1 (1.1)
RSV 31 (9.5) 3 (9.1) 18 (21.2) 5 (4.3) 5 (5.4)
BL + BLB 19 (5.8) - 1 (1.2) 13 (11.3) 5 (5.4)
BL + BLB + RSV 45 (13.9) 2 (6.1) 12 (14.1) 15 (13.0) 16 (17.4)
BL + BLB + RSV + DV 7 (2.2) - 1 (1.2) 4 (3.5) 2 (2.2)
BL + BLB + RSV + DV + RBSDV 3 (0.9) 3 (9.1) - - -
BL + BLB + RSV + DV + RBSDV + insect resist. 3 (0.9) 1 (3.0) 1 (1.2) 1 (0.9) -
Other combinations of resistance 104 (32.0) 17 (51.5) 20 (23.5) 28 (24.4) 39 (42.4)

BL: Rice blast, BLB: Bacterial leaf blight, RSV: Rice stripe virus, DV: Dwarf virus, RBSDV: Rice black-streaked dwarf virus.

Plant Breed. Biotech. 2020;8:426-33 https://doi.org/10.9787/PBB.2020.8.4.426
© 2020 Plant Breed. Biotech.