Sharma, Mahaveer P., Reddy, Ubbara Gangi and Adholeya, Alok. (2011) Response of arbuscular mycorrhizal fungi on wheat (triticum aestivum L.) Grown conventionally and on beds in a sandy loam soil. Indian Journal of Microbiology, Vol.51 (No.3). pp. 384-389. ISSN 0046-8991

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Abstract

The present study was undertaken to assess the benefit and compare the functioning of AM fungi on wheat grown conventionally and on beds. Ten treatment combinations were used, treatments 1 and 2: no fertilizers with and without arbuscular mycorrhizal (AM) fungi (In vitro produced Glomus intraradices); 3:100% of recommended NPK: (120 kg ha(-1) N; 60 kg ha(-1) P; 50 kg ha(-1) K), and 4 and 5: 75% of recommended NPK dose with and without AM inoculation in a 5 x 2 split-plot design on wheat using conventional/flat system and elevated/raised bed system. The maximum grain yield (3.84 t ha(-1)) was obtained in AM fungi inoculated plots of raised bed system applied with 75% NPK and was found higher (although non- significant) than the conventional (3.73 t ha(-1)) system. The AM inoculation at 75% fertilizer application can save 8.47, 5.38 kg P and 16.95, 10.75 kg N ha(-1), respectively, in bed and conventional system. While comparing the yield response with 100% fertilizer application alone, AM inoculation was found to save 20.30, 15.79 kg P and 40.60, 31.59 kg N ha(-1), respectively, in beds and conventional system. Mycorrhizal inoculation at 75% NPK application particularly in raised bed system seems to be more efficient in saving fertilizer inputs and utilizing P for producing higher yield and growth unlike non-mycorrhizal plants of 100% P. Besides the yield, mycorrhizal plants grown on beds had higher AM root colonization, soil dehydrogenases activity, and P-uptake. The present study indicates that the inoculation of AM fungi to wheat under raised beds is better response (although non-significantly higher) to conventional system and could be adopted for achieving higher yield of wheat at reduced fertilizer inputs after field validation.

Item Type:	Journal Article
Subjects:	Q Science > QK Botany S Agriculture > S Agriculture (General)
Divisions:	Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH):	Vesicular-arbuscular mycorrhizas, Vesicular-arbuscular mycorrhizas -- Biotechnology, Wheat, Sandy loam soils
Journal or Publication Title:	Indian Journal of Microbiology
Publisher:	Springer (India) Private Ltd.
ISSN:	0046-8991
Date:	July 2011
Volume:	Vol.51
Number:	No.3
Page Range:	pp. 384-389
Identification Number:	10.1007/s12088-011-0134-1
Status:	Peer Reviewed
Publication Status:	Published
Funder:	Indo-Swiss Collaboration in Biotechnology (ISCB), India. Dept. of Biotechnology (DBT)
URI:	http://wrap.warwick.ac.uk/id/eprint/38803

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