Journal of Animal and Plant Sciences
J. Anim. Plant Sci. [ISSN 2071 - 7024]
Volume 12(3): 1676 -1686. Published January 31, 2012.
Screening for Yellow Vein Mosaic Virus Resistance and Yield Loss of Okra under Field Conditions in Southern Thailand.
Sorapong Benchasri1*
1Southern Tropical Plants Research Unit, Faculty of Technology and Community Development, Thaksin University, Pa Phayom, Phatthalung, Thailand 93110 *Corresponding author: sorapong@tsu.ac.th Tel/Fax +6674693996
Keywords: Okra, Okra Yellow Vein Mosaic Virus (OYVMV), Screening, Germplasm
SUMMARY
Fifteen okra varieties (Lucky file 473, KN – OYV – 01, KN – OYV – 02, KN – OYV – 03, KN – OYV – 04, KN – OYV – 11, KN – OYV – 13, KN – OYV – 14, KN – OYV – 16, KN – OYV – 25, NO 71, OP (control accession), PC 52S5, PJ. 03 and TVRC 064) were cultivated in a field trial area of the Department of Agricultural Technology Faculty of Technology and Community Development Thaksin University during June to October 2009 and 2010 to determine their responses to okra yellow vein mosaic virus (OYVMV) and to evaluate of marketable fruit. The results showed that KN – OYV – 03 was moderately resistant, while KN – OYV – 25, PC 52S5, KN – OYV – 01, KN – OYV –13, KN – OYV – 02, KN – OYV – 11, NO 71, KN – OYV – 04 and KN – OYV – 16 were tolerant against OYVMV. TVRC 064 and KN – OYV – 14 were moderate susceptible, Luck file 473 and PJ. 03 varieties were susceptible while OP was highly susceptible to OYVMV. The highest marketable fruit were recorded on Lucky file 473 at 19.78 and 19.76 T ha-1 in 2009 and 2010, respectively. Whereas, OP produced the lowest yield (8.96 and 8.54 T ha-1).
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