Effects of selected rootstock/scion combinations on B uptake and plant growth of mango (Mangifera indica L.).
Nartvaranant P., Whiley A. W., Subhadrabandhu S.
Author Affiliation: Department of Horticulture, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.
Thai Journal of Agricultural Science 36 : 193-205
Abstract : The effect of rootstock on B uptake in mango was conducted in Queensland, Australia in September 1999-July 2001 to investigate the suitable rootstocks for each scion cultivar in B uptake. The three scion cultivars, 'Khiew Sawoey', 'Nam Dok Mai' and 'R2E2' were grafted on to seven rootstock cultivars, 'Kaew 007', 'Sampee', 'Nam Dok Mai', 'Common-1', 'Tang Kai Pung Jang', 'Kensington Pride' and 'R2E2'. All of the grafted mango trees were grown in sand culture. The study found that 'Sampee' was the best rootstock for 'Khiew Sawoey' as this rootstock had the highest B plant tissue concentrations compared to the other rootstock/scion combinations. For 'Nam Dok Mai' scion, 'Kaew 007' and 'Tang Kai Pung Jang' were the best rootstocks, as they had significantly higher B concentration in the leaves compared to the other rootstock/scion combinations. Although, 'Sampee' rootstock had high leaf B concentration but the total B concentration of the 'Nam Dok Mai' scion grafted on to 'Sampee' rootstock was less than those found in 'Tang Kai Pung Jang' and 'Kaew 007' rootstock. 'Tang Kai Pung Jang' was the best rootstock for 'R2E2' scion. Mango rootstocks significantly affected the B concentration in the different plant parts of mango trees demonstrating the effect of rootstock on B uptake and movement across grafted union exists. Therefore, it may be possible to use a suitable rootstock for different scion cultivars and enhance the B concentration in the grafted mango trees.