Morpho-physiological and biochemical profiling of some mango cultivars in Pakistan.
Wajeeha Jamil, Saeed Ahmad, Mudassar Ahmad, Sajid Ali, Abbas M. M.
Author Affiliation: Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan.
Journal of Agricultural Research (Lahore) 53 : 397-412
Abstract : A study was conducted at Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan during 2011-12 to evaluate eight mango cultivars (Almas, Collector, Pope, Neelum, SS-II, Shahpasand, Alphonso and Sindhri) for sensitivity to malformation and their differences relating to morphological, physiological and biochemical characteristics. Among these cultivars Sindhri and Shahpasand were found comparatively resistant against malformation having only 6.33 and 9.0 malformed branches, respectively. Leaf chlorophyll was found maximum (47.17 SPAD) in Pope and stomatal conductance was found highest (0.26 mmol/m-2/sec) in Neelum. Whereas, photosynthesis (11.32 µml/m2/sec) and transpiration rates were maximum (10.22 µml/m2/sec) in Shahpasand. In biochemical attributes, total soluble solids (TSS) were found maximum (17 °Brix) in Almas, while, SS-II exhibited least TSS (9.3 °Brix). Titratable acidity was found minimum (0.19%) in Collector, whereas, SS-II exhibited lowest (26.57) sugar acid ratio. Maximum ascorbic acid (43.5 mg/100 g) was observed in Neelum, while, in case of sugars, maximum reducing sugars (6.18%), non-reducing sugars (9.21) and total sugars (11.33) were found in Pope and reducing sugar was found maximum Almas (6.18%), respectively. Sindhri and Pope exhibited maximum total carotenoids (3.43 µg/mL FW) and antioxidants (79.0 mM Trolox/g), whereas, total phenolic contents were found maximum (0.95 mg/100 g) in Sindhri. Likewise, non-commercial mango cultivars, Alphonso and Almas exhibited highest fruit (281.21 g and 244.60 g) and pulp weight (172.10 g and 210.21 g). Hence, results suggested that Almas, Neelum and Pope exhibited good fruit physical and biochemical attributes and have tremendous potential for commercial cultivation in Pakistan.