Vol. 8, Issue 9, Part B (2024)

Abstract: €The experiment entitled “Effect of nano calcium and nano Magnesium on growth, yield and quality of Dragon fruit cv. Royal Lady (Hylocerus polyrhizus) cv. Royal Red” was conducted during 2022-2023 at Kandhal Agro Farm, Ludhiana, Department of Horticulture, Lovely Professional University, Punjab. The study revealed that among various nano calcium treatments, Ca3 (0.6% Ca) was notably superior, exhibiting significant improvements in growth, yield, and physical and quality parameters. Ca3 treatment increased plant height (17.71%), plant spread (East-West 16.86%, North-South 17.13%), stem circumference (7.84%), canopy volume (61.61%), fruit length (104.93 mm), and fruit width (88.68 mm). Regarding nano Mg, Mg₃ (0.6% Mg) was notably superior, increasing plant height (18.22%), plant spread (East-West 17.31%, North-South 17.42%), stem circumference by 8.07%, canopy volume (63.10%), fruit width(91.31mm), and fruit length to (106.3 mm). The interaction between nano calcium and nano magnesium significantly enhanced all parameters in the Ca₃+Mg₃ treatment (0.6% Ca + 0.6% Mg), recording the highest values for plant height (22.14%), plant spread East-West (20.53%), plant spread North-South (20.85%), canopy volume (77.88%), fruit weight (379.81 g), fruit length (116.13 mm), and fruit width (92.87 mm). The experiment showed that nano calcium (0.6% Ca) and nano magnesium (0.6% Mg) treatments significantly improved the growth parameters of Dragon fruit cv. Royal Red. The Ca₃+Mg₃ combination was the most effective, resulting in the highest plant height, spread, canopy volume, and fruit size. The study highlights the potential of nano nutrients in optimizing dragon fruit production.