摘要：The experiment was laid out at Horticultural Research Sub-Station for Floriculture and landscaping, Old Shujabad Road Multan, Punjab-Pakistan during 2014-15 and 2015-16. The high value commercial varieties of rose i.e. ‘Ice Berg’，‘Indian C h ie f，'Cardinal’，and 'Surkha’ （gruss-an-teplitz) were selected in the field for the study on susceptib ility against the thrips (F rankliniella occidentalis). The ‘Cardinal’ variety of flower having 89.11 thrips per bud remains highly susceptible toflower thrips during 2014-15 & 2015-16. Whereas ‘Indian chief’ and ‘Ice burg’ having statistically similar population of thrips per bud i.e. 13.14 & 10.90 thrips per bud. The ‘Surkha’ (gruss-an-teplitz) has low population of thrips per flower. Similarly, on flowers again cardinal variety remain at the top i.e. 35.64 thrips per flower when compared with other varieties of flowers. The Ice burg has 4.74 thrips per flower. The variety ‘Surkha’ and ‘Indian chief’ has low population of thrips per flower i.e. 1.78 and 1.04. Population on leaves remain zero during throughout the period of study. Our studies concluded that the varieties ‘Cardinal’ is more susceptible toflower thrips, so early attention should be given to overcome thrips. A resistant germplasm that it should be included in breeding program for the development of new flowers varieties.
关键词：Frankliniella occidentalis;Host plant resistance;Pakistan;Rose varieties and Thrips
