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Influence of AM fungi, inorganic phosphorus and irrigation regimes on plant water relations and soil physical properties in okra-pea cropping system in Himalayan acid Alfisol.

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Title Influence of AM fungi, inorganic phosphorus and irrigation regimes on plant water relations and soil physical properties in okra-pea cropping system in Himalayan acid Alfisol.
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Creator Kumar A, Choudhry AK and Suri VK.
 
Subject Acid Alfisol, arbuscular mycorrhizal fungi, mean weight diameter, relative leaf watercontent, xylem water potential, water use efficiency, drought resistance
 
Description Not Available
Present investigation studied plant water relations and soil physical properties through AM fungi (Glomus mosseae) to mitigate drought stress in Himalayan acid Alfisol having low water retentivity. Experimentation was carried out at Palampur, India during 2009–2011 in okra–pea cropping system in randomized block design (RBD) replicated thrice with 14 treatments comprising arbuscular mycorrhizal (AM) fungi, varying phosphorus nutrition and irrigation regimes at 40 and 80% available water holding capacity. Integrated use of AM fungi at varying phosphorus (P) levels and irrigation regimes led to significantly higher relative leaf water content (3% each) in okra and pea besides significantly higher xylem water potential (27%) in pea over non-AM fungi counterparts. AM fungi enhanced water-use-efficiency in okra (5–17%) and pea (12–35%) over non–AM fungi counterparts. AM fungi also improved water holding capacity (5–6%) and mean weight diameter of soil particles (4–9%) over non–AM fungi counterparts; but, had nominal or no effect on bulk density. Mycorrhizal plants maintained higher tissue water content imparting greater drought resistance to plants over non–mycorrhizal plants at moisture stress. It is inferred that integrated application of AM fungi and P at varying irrigation regimes improved the plant water relations vis-à-vis drought resistance, crop productivity, WUE, soil aggregation and water holding capacity in okra–pea sequence in Himalayan acid Alfisol.
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Date 2020-01-04T03:50:27Z
2020-01-04T03:50:27Z
2013-05-28
 
Type Article
 
Identifier Kumar A, Choudhry AK and Suri VK. 2013. Influence of AM fungi, inorganic phosphorus and irrigation regimes on plant water relations and soil physical properties in okra-pea cropping system in Himalayan acid Alfisol. Journal of Plant Nutrition (In Press).
ISSN: 0190-4167 (Print) 1532-4087 (Online)
http://krishi.icar.gov.in/jspui/handle/123456789/29204
 
Language English
 
Relation Not Available;
 
Publisher Taylor & Francis