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Nutritional Composition of Potato (Solanum tuberosum L.) Genetic Resources


Affiliations
1 ICAR-Central Potato Research Institute, Kufri Fagu Unit, Kufri 171 012, India
2 ICAR-Central Potato Research Institute Regional Station, Modipuram, Meerut 250 110, India
3 ICAR-Indian Institute of Vegetable Research, Varanasi 221 305, India
4 ICAR-Central Potato Research Institute, Shimla 171 001, India
5 ICAR-National Research Centre Pomegranate, Solapur 413 255, India
6 ICAR-Central Potato Research Institute, Kufri-Fagu Unit, Kufri 171 012, India
 

Seventy-one germplasm lines comprising of commercial Indian potato cultivars, advanced clones exotic and indigenous cultivars were evaluated for nutritional compounds. We observed significant variability in the lines for anthocyanins (1.81–17.20 mg/100 g FW), carotenoids (4.75–27.75 µg/g FW), ascorbic acid (14.50– 85.00 mg/100 g FW) and total phenolics (19.22–73.54 mg GAE/100 g FW). However, for zinc (10.62–27.58 ppm), iron (30.49–56.29 ppm), and tuber dry matter content (14–26%), only small variations were found. The anthocyanin, carotenoids, and total phenolic contents of indigenous cultivars and nutrient-rich advanced clones were generally much higher than those of the common variety. It is interesting to note that anthocyanin (r = –0.46; –0.43), total carotenoids (r = –0.47; –0.38), ascorbic acid (r = –0.27; –0.24) and tuber dry matter (r = –0.21, –0.24) all had negative correlations with marketable and total tuber yield respectively. Cluster analysis revealed that genotypes from clusters 1 and 3 can be used in bio-fortification breeding. The results of this study also reveal that two genotypes, viz. JEX/A-122 (Andigena line) and Kala Aloo (indigenous line) may be used as breeding material to develop nutrient-rich potato varieties.

Keywords

Cluster Analysis, Germplasm, Nutritional Compounds, Potato, Principal Components.
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Abstract Views: 296

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  • Nutritional Composition of Potato (Solanum tuberosum L.) Genetic Resources

Abstract Views: 296  |  PDF Views: 99

Authors

Dalamu
ICAR-Central Potato Research Institute, Kufri Fagu Unit, Kufri 171 012, India
S. K. Luthra
ICAR-Central Potato Research Institute Regional Station, Modipuram, Meerut 250 110, India
Jagesh K. Tiwari
ICAR-Indian Institute of Vegetable Research, Varanasi 221 305, India
Jagdev Sharma
ICAR-Central Potato Research Institute, Shimla 171 001, India
Pinky Raigond
ICAR-National Research Centre Pomegranate, Solapur 413 255, India
B. Chaudhary
ICAR-Central Potato Research Institute Regional Station, Modipuram, Meerut 250 110, India
Ashwani K. Sharma
ICAR-Central Potato Research Institute, Kufri-Fagu Unit, Kufri 171 012, India

Abstract


Seventy-one germplasm lines comprising of commercial Indian potato cultivars, advanced clones exotic and indigenous cultivars were evaluated for nutritional compounds. We observed significant variability in the lines for anthocyanins (1.81–17.20 mg/100 g FW), carotenoids (4.75–27.75 µg/g FW), ascorbic acid (14.50– 85.00 mg/100 g FW) and total phenolics (19.22–73.54 mg GAE/100 g FW). However, for zinc (10.62–27.58 ppm), iron (30.49–56.29 ppm), and tuber dry matter content (14–26%), only small variations were found. The anthocyanin, carotenoids, and total phenolic contents of indigenous cultivars and nutrient-rich advanced clones were generally much higher than those of the common variety. It is interesting to note that anthocyanin (r = –0.46; –0.43), total carotenoids (r = –0.47; –0.38), ascorbic acid (r = –0.27; –0.24) and tuber dry matter (r = –0.21, –0.24) all had negative correlations with marketable and total tuber yield respectively. Cluster analysis revealed that genotypes from clusters 1 and 3 can be used in bio-fortification breeding. The results of this study also reveal that two genotypes, viz. JEX/A-122 (Andigena line) and Kala Aloo (indigenous line) may be used as breeding material to develop nutrient-rich potato varieties.

Keywords


Cluster Analysis, Germplasm, Nutritional Compounds, Potato, Principal Components.

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DOI: https://doi.org/10.18520/cs%2Fv124%2Fi12%2F1454-1461