Mineral nutrient elements of peach [Prunus persica] trees as affected by dwarfing rootstocks
1996
Mizutani, F. (Ehime Univ., Matsuyama (Japan). Coll. of Agriculture) | Tanji, H. | Amano, S. | Hino, A. | Kadoya, K. | Watanabe, J. | Akiyoshi, H.
The effect of dwarfing rootstocks on leaf mineral nutrient elements of peach (Prunus persica Bastch. cv. Akatsuki) trees was investigated . P. japonica and tomentosa considerably elevated leaf manganese (Mn) content when used as rootstocks of peaches. When an aqueous MnCl2 solution was applied to soil, the shoot growth was reduced at 500 and 1000 ppm in P. tomentosa, and at 100 ppm in P. japonica and red leaf plum (P. cerasifera), but not affected even at 1000 ppm in wild peach (P. persica). The maximum Mn levels that can be accumulated in any tissue seemed to be about 2000 ppm. The concentration of soil-applied MnCl2 to cause the leaf Mn to saturate was 100 ppm for P. japonica and P. tomentosa and 500 ppm for red leaf plum. However, the maximum level was not attained in wild peach even when 1000 ppm MnCl2 was treated. P. japonica most greatly accumulated Mn in the stems, whereas red leaf plum in the roots. Leaf K and Mg content tended to decrease with increasing coil-applied Mn
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