Record ID No. |
119 |
Author(s) |
Rutto, K.L., Mizutani, F , 2006 |
Affiliation |
Ehime University, Faculty of Agriculture, Expt Farm, Hattanji 498, Matsuyama, Ehime 7882424, Japan, kipkoriony@yahoo.com |
Title |
Peach seedling growth in replant and non-replant soils after inoculation with arbuscular mycorrhizal fungi |
Source. Vol.(no):Page |
Soil biology & biochemistry. 38(9):2536-2542p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Mass production |
Sub-subjects |
|
Host |
Prunus persica |
Organism |
Gigaspora margarita |
Country |
Japan, Asia |
Abstracts |
The effect of pre-inoculation with arbuscular mycorrhizal fungi (AMF) on post-transplant growth of peach seedlings in replant and non-replant soils was studied for two successive seasons. Seedlings raised in sterile media and pre-inoculated with soil-based Gigaspora margarita inoculum were transplanted in replant and non-replant field soils alongside non-inoculated controls. Pre-inoculated seedlings transplanted in non-replant soils showed greater initial growth in the first year. Plant height, and lateral shoot length and number was highest in non-replant soils irrespective of mycorrhizal pre-inoculation. Similarly, biomass yield was significantly higher in seedlings in non-replant soils, though there were no significant differences in shoot/root ratios, and in tissue mineral content between and within treatments. Seedling infection by indigenous AMF was high in both replant and non-replant soils, and even non-inoculated seedlings recorded high infection levels after the first season. Generally, mycorrhizal activity was lower, and spore populations higher in replant soils, while the opposite was true in non-replant soils. It seems that soil sickness has a negative impact on plant metabolism and limits the capacity of the plant host to support the mycorrhizal symbiosis. |