Int. J. Biosci.14( 1), 101-111, January 2019
Roses nature beautiful creation, response differential in newly adopted area. it is necessary to evaluate the exotic varieties response for adoptability in Pothwar climate of Pakistan. In this study, the twenty-one Rosa hybrida varieties were grown to evaluate their performance in open field. The aesthetic beauty of varieties, adoptability and morphological performance was assessed under the Pothwar agro climatic condition. Data was collected on plant height (cm), primary branches, number of flowers, flower diameter (cm), number of flowers petals, number of prickles per 10 cm area and flower persistence life (days). Data was analyzed by using factorial design with LSD level 0.05. Results shows that plant growth with respect of number of flowers increases up to month of May. As temperature increase above 37 o C, number of flowers decrease but increasing trend in growth and number of primary branches observed up to October until growth ceased. Significant Interaction was observed in yield traits and months. The maximum plant height (91.15 cm) was observed in variety Medistrich (V6) and maximum number of primary branches (14.82) was counted in Variety Gruss an teplitz (V21). As number of flowers concerned in all varieties, Angel face (V16) flowering performance was significant. Minimum variation was observed in diameter of flower throughout the season from March to October. The flower persistence life in field varied from 6.16 to 13.50 days among varieties. Overall significant variation was observed in each variety for overall performance. It is concluded that variety Medistrich, Gruss an teplitz performance remain better in Pothwar climate of Rawalpindi.
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