Soil Amendments and Types of Inocula on Development of Mycorrhiza

Possibility of utilizing mycorrhizal inocula from underneath unrelated hosts for introduction purposes is explored. Initial studies in the glass house experiments showed successful introductions from hardwoods to conifers and vice-a-versa are possible. Detailed studies were conducted in a nursery bed experiment to find the usefulness of such mycorrhizal development. Chir pine seedlings raised in beds amended with H₂SO₄ and formalin treatments and inoculated with soil under chir pine and eucalypts and interplanted with 'mother seedlings' of Pinus patula showed that mycorrhizal development in various treatments did not differ significantly. However, seedling heights and dry weights were significantly increased only in plots receiving soil inoculum from chir pine forest.