Sahar Rostami Hir; Hossein Riahi; Sima Zanganeh
Volume 12, Issue 4 , January 2015
Abstract
Potato is one of the most important agricultural products. ِ ِDue to high nutritional it has high nutritious value, it is considered as one of the main products in the nutrition of under developing countries. Mycorrhiza fungi increasethe growth of plants with establishing coexistence relation with ...
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Potato is one of the most important agricultural products. ِ ِDue to high nutritional it has high nutritious value, it is considered as one of the main products in the nutrition of under developing countries. Mycorrhiza fungi increasethe growth of plants with establishing coexistence relation with the plants. The purpose of this work is to identify the mycorrhiza fungi which have mutual relation with roots of potato plant and relation with edible potato plant and study their effects on the growth parameters of this plant.Wet sieving and decanting method was used for purification of the spores the spoors of these fungi are separated with sieve from the wet earth.In this study four species of mycorrhiza fungi belonging to the genus Glomus type were identified. These species were: Glomus aggregatum, Funneliformis.geosporum, Funneliformis mosseae and Claroideoglomus etunicatum, In order to increase the mycorrhizal fungi, the pot culture method was used.Statistical study revealed that there is a significant differences in the number of leaves, flowers, size of stem and root, fresh and dry and weight in treated plants as compare to control Mycorrhiza fungi were inoculated in the potato plants. In this study it was determined that in the potatoes which were inoculated with AMF, the size of plants in dry and wet condition, were so high with regard to the care of fertilize treatments .According to the results of this study, we can hope that in future we will be able to use Mycorrhiza instead of using chemical fertilizers. This method will improve the growth of potato plants and will prevent the chemical contamination of the farms.
Somaye Kachooeian Javadi; Mehrdad Abbasi; Hossein Riahi; Seyed Mahmoud Mousavi
Volume 4, Issue 13 , October 2006
Abstract
The obligate phytoparasitic fungi of the orders Uredinales (Rust fungi), Ustilaginales s.lat. (Smut fungi) and Erysiphales (Powdery mildews) were studied floristically in the Jajroude Protected Area. This region is located to the East of Tehran and contains two National Parks within its borders, namely ...
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The obligate phytoparasitic fungi of the orders Uredinales (Rust fungi), Ustilaginales s.lat. (Smut fungi) and Erysiphales (Powdery mildews) were studied floristically in the Jajroude Protected Area. This region is located to the East of Tehran and contains two National Parks within its borders, namely Khojir and Sorkhe-Hessar National Parks. To assess the floristic spectrum, living materials were collected from different sites of the above mentioned area during 2003-2004. Of the 43 identified species 26 belong to Uredinales, 14 belong to Erysiphales and the remaining species (3) belong to the Ustilaginales. Identified species of rust fungi belonged to four genera, viz. Puccinia, Melampsora, Phragmidium and Uromyces. The powdery mildew specimens belonged to the genera Blumeria, Golovinomyces, Erysiphe, Leveillula and Podosphaera. Species of Ustilaginales identified also belonged to Anthracoidea and Ustilago. All 43 species are listed and discussed mainly with respect to their morphology and taxonomy. Golovinomyces riedlianus is newly reported from Iran. The spermogonia, aecial state and aecispores of Phragmidium iranicum are described for the first time. Our study showed that urediniospores of Puccinia melanographahave from 3 to 6 germ pores, either arranged equatorially or irregularly distributed over the spore surface. This character has not been previously described in detail for p < /span>. melanographa. Capparis spinosa for Puccinia trabutii(aecial stage); Rubus sanguineus for Phragmidium iranicum; Astragallus floccosus for Uromyces punctatus; Achillea wilhelmsii and Centaurea aucheri, both for Golovinomyces cichoracearum; Cousinia eryngioides and Onobrychis gaubae, both for Leveillula taurica and Euphorbia teheranica for Podosphaera euphorbiae are all reported as new hosts (matrix nova). Moreover, several new hosts for identified fungi are reported in Iran.
Hossein Riahhi; Tahereh Valadbeigi
Volume 2, Issue 6 , January 2005
Hossein Riahi; Tahereh Valadbeigi
Volume 1, Issue 2 , January 2004
