GENETIC VARIABILITY STUDIES IN WATER CHESTNUT (TRAPA NATANS VAR. BISPINOSA ROXB.) UNDER CENTRAL UTTAR PRADESH CONDITIONS
Water chestnut (Trapa natans var. bispinosa Roxb.) locally known as singhara, is an important annual aquatic fruit crop belonging to the family Trapaceae. Since it is a potential crop for water logged areas cultivated on a large scale in Uttar Pradesh a preliminary survey, collection and evaluation of different cultivars of water chestnut for their physical and biochemical parameters was conducted by Babasaheb Bhimrao Ambedkar University, Lucknow from 2005-2008 in order to explore the possibility of genetic variability in water chestnut. The studies showed that considerable variation was found in the leaf length (4.33-6.60 cm), leaf breadth (4.10-7.86 cm), petiole length (5.96-10.46 cm), fruit pedicel length (3.70-5.20 cm), fruit length (3.11-4.89 cm), fruit breadth (3.38-6.38 cm), cheek diameter of fruit (3.26-4.41 cm), fruit weight (13.20-66.5 g), fruit volume (11.30-27.80 ml), specific gravity of fruit (1.01-1.37), kernel length (2.85-4.89 cm), kernel breadth (3.24-4.84 cm), cheek diameter of kernel (1.20-4.13 cm), kernel weight (7.0-17.50 g), kernel volume (4.80-13.68 ml), specific gravity of kernel (1.16-1.76), peel weight (4.74-21.57 g), thickness of peel (0.14-0.40 cm), kernel:peel ratio (0.91-4.73), TSS (4.33-10.55°B), ascorbic acid (5.05-9.70 mg/100 g) and acidity (0.07-0.10%).
Dwivedi, D.H., Babu, M., Lata , R. and Shringar , R. (2011). GENETIC VARIABILITY STUDIES IN WATER CHESTNUT (TRAPA NATANS VAR. BISPINOSA ROXB.) UNDER CENTRAL UTTAR PRADESH CONDITIONS. Acta Hortic. 918, 433-440
germplasm, singhara, minor fruit, physico-chemical characteristics