Effect of root pruning on leaf expansion, leaf water potential and stomatal conductance of mango
2004
Hassan I. A. | Mohd. Razi I. | Zukarnain B. W. M.
The use of low technological agronomic manipulations such as root pruning might contribute positively to solve the problem of low bearing of mango under high rain and humid condition, since the world demand is increasing under limited resources. A study was conducted to understand the effect of different pruning percentages on some physiological trends as a database for further understanding of improving the aspects of yield and quality of mango. Four percentages of prunings were used; 0%, 25%, 50% and 75% and the experiment was conducted under rain shelter in a complete randomized design with 3 replicates. The results indicated that increasing the percentage of pruning resulted in decreasing of leaf expansion, leaf water potential as well as stomatal conductance. Its interesting to mention that 75% root pruning resulted in a complete death ofplant. This suggests that pruning within 25-50% might be suitable for restriction of mango growth while enhancing the yield, since the mild stress occurred as a result increased the source carbohydrates to be translocated to the sink. However, investigations still carry on for better understanding.
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