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http://krishi.icar.gov.in/jspui/handle/123456789/41365
Title: | Efficiency of VAM hyphae in utilisation of organic phosphorus by wheat plants |
Other Titles: | Not Available |
Authors: | J. C. Tarafdar |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Central Arid Zone Research Institute |
Published/ Complete Date: | 1994-01-01 |
Project Code: | Not Available |
Keywords: | Hyphosphere Mineralisation Organic phosphorus VAM wheat |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | In a pot experiment wheat (Triticum aestivum L.) was grown under axenic conditions in two soils differing in organic matter and phosphorus contents. The pots were separated by 30 .urn nylon nets and a 0.45 .urn membrane into five compartments, a central one for root growth, two adjacent to the central compartment for hyphal growth and two outer ones for control. The treatments consisted of sterilized soil, supply of organic (Na-phytate) or inorganic phosphorus (P) and of soil either non-inoculated or inoculated with Glomus mosseae.Shoot dry weight increased by mycorrhizal inoculation in the range between 2.2 and 4.5 g pot depending on the soil and treatment. Organic P was depleted by V A-mycorrhizal hyphae throughout the hyphal compartment (15 mm). The maximum depletion was 106 mg kg soil within a 0.5 mm distance from the root surface. The depletion of organic P depended on the soil type, hyphal length density, phosphatase activities and the amount of organic P present in the system. The maximum hyphal contribution to the hydrolysis of organic P was concentrated in the zone within 3 mm from the root surface. In the mycorrhizal treatment, shoot concentrations of P, Cu, and Zn increased. In general, a slight decrease in the Mn and Fe concentrations was noticed. A significant increase in the concentration of K in the mycorrhizal plants was observed only in the presence of organic P. Calcium and Mg concentrations were not affected by mycorrhizal inoculation.The results obtained clearly demonstrated that V A-mycorrhizal phosphatase is effective in the hydrolysis of Na-phytate and confirmed the important direct contribution of VAM hyphae to plant P, Cu, and Zn nutrition. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Soil Science and Plant Nutrition |
NAAS Rating: | 7.43 |
Volume No.: | 40(4) |
Page Number: | 593-600 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | 10.1080/00380768.1994.10414298 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/41365 |
Appears in Collections: | NRM-CAZRI-Publication |
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