Informatics Publishing Limited

Ayswarya Radhakrishnan , Manoranjan Bhanja , V. Mohan , Srinivasa Sastry

Abstract

In the present investigation, different forms of P. albus inocula viz., basidiospores, vegetative mycelium and Ca alginate beads were applied to clonal plantlets of Eucalyptus tereticornis in order to determine the effect of each type of inoculum on the growth improvement of the plants. In this study, the treatments with the fungus recorded significantly greater plant height, ischolar_main length, shoot and ischolar_main biomass and collar diameter over uninoculated control plantlets. The maximum growth of plants was recorded in the treatment with pure mycelial culture inoculum, followed by the basidiospore. Least growth was recorded in the calcium alginate treated plants but it had significantly better growth than the untreated control plants.

Keywords

Ectomycorrhizal fungus Pisolithus albus, Inocula, Growth improvement, Eucalyptus tereticornis

Full Text

     

Ayswarya Radhakrishnan , Manoranjan Bhanja , V. Mohan , Srinivasa Sastry

Abstract

In the present investigation, 6 different isolates of P. albus collected from 6 different Eucalyptus plantations zones of Andhra Pradesh viz., Anantapur (isolate-1), Tirupati (isolate-2), Kavali (isolate-3), Paloncha (isolate-4), Tirumala (isolate-5) and Achutapuram (isolate-6) were applied to clonal plantlets of Eucalyptus tereticornis in order to determine the effect of each isolate on the growth improvement of the plants. In this study, the treatments with the fungus recorded significantly greater plant height, ischolar_main length, shoot and ischolar_main biomass and collar diameter over uninoculated (control) plantlets. The maximum growth of plants of Clone 2 was recorded in the treatment with Isolate-5. In Clone 1 better growth performances was observed when inoculated with Isolates 1, 3 and 5. Similarly, Isolates 1, 2 and 5 improved the growth parameters of Clone 3. Least growth was recorded in the plants treated with Isolates 4 and 6 but it had significantly better growth than the untreated control plants.

Keywords

Ectomycorrhizal Fungi, Pisolithus albus, Potential Isolates, Growth Improvement,Eucalyptus tereticornis, Clones

Full Text

     

Manoranjan Bhanja

Abstract

No abstract

Full Text

     

Ch. Sudhakar Reddy , Manoranjan Bhanja , Vatsavaya S. Raju

Abstract

Jakaram Reserve is a 200 ha mixed dry deciduous forest with 306 species of Magnoliophyta representing 61 families of Magnoliopsida and seven families of Liliopsida. Of these, 66.4% are herbs, 11.4% are shrubs and 22.2% are trees. Among the 68 tree species, 13 are planted. While Tectona grandis dominated the land in the past, Anogeissus latifolia, Chloroxylon swietenia, Gardenia resinifera and Helicteres isora are the most prevalent trees at present. Diospyros chloroxylon is the dominant shrub followed by Maytenus emarginata, Ziziphus oenoplia, Grewia flavescens and G. hirsuta. The proportions of hemicryptophytes (5%) and cryptophytes (4%) indicate a tropical climate while the phanerophytes (26%), chamaepbytes (18%) and therophytes (47%) present a desert phytoclimate. The latter scenario is due to the prevailing arid climate, deforestation and excessive grazing pressure. The cattle are found to forage on as many as 117 species (38%) though 61 species (20%) of them are of good fodder value.

Full Text