Varietal Preferences of Leafminer, Tuta absoluta on Tomatoes in Field | [Pakistan Journal of Agricultural Research • 2023]

Author(s):

1. Abdul Hayee Gabol: Department of Entomology, Faculty of Crop Protection, Sindh Agriculture University,Tandojam,Pakistan

2. Arfan Ahmed Gilal: Department of Entomology, Faculty of Crop Protection, Sindh Agriculture University,Tandojam,Pakistan

3. Lubna Bashir Rajput: Department of Entomology, Faculty of Crop Protection, Sindh Agriculture University,Tandojam,Pakistan

4. Jamal-U-Ddin Hajano: Department of Plant Pathology, Faculty of Crop Protection, Sindh Agriculture University,Tandojam,Pakistan

5. Muhammad Ishaque Mastoi: Pakistan Agricultural Research Council,Islamabad,Pakistan

6. Ghulam Qader Mangrio: Department of Entomology, Faculty of Crop Protection, Sindh Agriculture University,Tandojam,Pakistan

7. Jam Ghulam Mustafa Sahito: Department of Plant Protection, Faculty of Crop Protection, Sindh Agriculture University,Tandojam,Pakistan

Abstract:

Tomato leafminer, Tuta absoluta has emerged as a serious oligophagous pest of tomatoes and other allied vegetables. It has recently been reported from Sindh, Pakistan, where studies on its biology and management are lacking. eThrefore, studies were conducted to determine the relative resistance of widely grown hybrid (Rota F1, Early King, G1612, NAGA F1 and T-1057) and local tomato varieties (Desi Local and Shimlo) of Sindh, Pakistan against T. absoluta. All the varieties grown with standard agronomic practices as data on infestation of T. absoluta was taken weekly since the ffiteen days of tomato transplanting depending on its characteristic damage symptoms. Both local tomato varieties were found signicfiantly more susceptible than hybrid varieties that also difer in their relative resistance against T. absoluta. Overall, signicfiantly the highest T. absoluta infestation on tomato leaves and fruits was recorded on Desi local (27.19±9.10 and 9.10±0.44%) and Shimlo (26.47±8.76 and 8.76±0.43%) varieties, whereas T1057 (9.70±3.54 and 3.54±0.19%) sufered the lowest infestation. Among hybrid varieties, the highest T. absoluta infestation on leaves and fruits was recorded on Rota F1 (21.22±7.07 and 7.07±0.33%) variety. A signicfiant efect of T. absoluta infestation was also recorded on tomato yield of various varieties as the highest yield (735.20±9.49 maunds/acre) was recorded for T1057 variety, followed by Early King (676.40±8.21 maunds/acre). eTh lowest yield was observed in Desi Local (407.60±7.03 maunds/acre) and Shimlo (412.60±8.60 maunds/acre). eThrefore, further studies should be planned to evaluate the mechanism of resistance among diferent tomato varieties against T. absoluta so that better breeding strategies could be employed to develop more resilient varieties with good yield potential.

Page(s): 290-296

DOI: 10.17582/journal.pjar/2023/36.3.290.296

Published: Journal: Pakistan Journal of Agricultural Research, Volume: 36, Issue: 3, Year: 2023

Keywords:

breeding , resistance , Susceptible , leafminer , infestation , damage

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