Climatic and Altitudinal Variation in Physicochemical Properties of <i>Citrus sinensis</i> in India
Jahan Anand | Jagmohan Singh Rawat | Vidyawati Rawat | Bhupendra Singh | Vinod Prasad Khanduri | Manoj Kumar Riyal | Prabhat Kumar | Marina M. S. Cabral Pinto | Munesh Kumar
<i>C. sinensis</i> (L.) Osbeck is grown in large-scale, in-home gardens of traditional agroforestry systems in the Garhwal Himalaya. The present investigation of <i>C. sinensis</i> was conducted on the basis of twenty-six populations in different home gardens located in different geographical variables. The aim was to understand variations in physicochemical properties, viz., fruit weight, fruit length, fruit width, peel thickness, peel weight, juice sacks, juice weight, seeds/fruits, rudimentary seeds/fruits, seed weight, total soluble solids, citric acid, ascorbic acid and sugar content. The results of the study revealed that the physicochemical properties of <i>C. sinensis</i> were significantly varied among the populations. The fruit weight was the most variable among the morphological characteristics, and vitamin C among the nutritive parameters. The average fruit weight varied from 96.64 to 296.86 g/fruit. The other study traits were found to oscillate between 7.73 and 12.76 °Brix (total soluble solids); 3.04 and 5.96% (citric acid); 31.45 and 86.45 mg/g<sup>−1</sup> (vitamin C) and 4.65 and 9.27% soluble sugar. Geographical variables (altitude, latitude and longitude, temperature and rainfall) have influenced the physicochemical parameters of <i>C. sinensis</i> significantly. Amongst the physicochemical properties, fruit weight and vitamin C were the most variable parameters and could be used for the improvement of <i>C. sinensis</i>. These variations in the <i>C. sinensis</i> population have enabled great advances in better understanding the variability in the physicochemical properties of fruit and response to biotic and abiotic stresses.
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