Effects of temperature on the growth, leaf dry weight, carbohydrate and mineral nutrient contents of mango.
Chen IouZen, Cheng ChengYung
Author Affiliation: Taiwan Tea Experiment Station, Yangmei, Touyuan, Taiwan.
Chinese Journal of Agrometeorology 1 : 19-25
Abstract : In pot trials, polyembryonic mango seedlings were grown at day/night temperatures of 20/15, 25/30 or 30/25°C, or outdoors, and sampled on 5 dates between 22 Oct. and 2 Feb. Those grown at 20/15° had lower levels of nutrients, particularly Fe, Zn and Mn, but higher DW percentages and carbohydrate contents, compared with those grown at 25/20 or 30/25°. Plants grown at 25/20° had the lowest top/root ratio. Further experiments with cv. Irwin involving 5 day/night temperature regimes indicated that the leaves from plants grown at lower night temperatures contained more carbohydrates and had a higher DW. Flowering only occurred in some plants at 20/15°, the rest of the plants remained vegetative; some shoots at 25/20 and 25/15° stopped growing.