Influence of Arbuscular Mycorrhizae on Callusing and root colonization of Tea (Camellia sinensis) Clones in Kenya
Asian Soil Research Journal,
Mycorrhizal fungi are a major component of the soil micro flora in many ecosystems, but usually have limited saprophytic abilities. Arbuscular mycorrhizal fungi (AMF) are an important component of soil life and soil chemistry. In soil, phosphorus may be present in relatively large amounts, but much of it is poorly available because of the very low solubility of phosphates by formation of complexes with iron, aluminum, and calcium, leading to soil solution concentrations of 10μm or less and very low mobility. Tea is a major income earner in the country, but yields are declining since high yielding tea varieties have a major problem with rooting and take so long in the nursery. The current study was initiated to investigate the role between Mycorrhizae and plants to explain rooting and growth rates during early stages of tea establishment. It was conducted at James Finlay in Kericho County, Kenya. The experiment was laid out in a Randomized Complete Block Design (RCBD) with factorial arrangements. Phosphorus treatments consisted of a standard rate of 107.66kg ha -1, two clones of the tea (S15/10 and SC 12/28) and two mycorrhizal strains (Glomus mosseae and Glomus intraradices) plus one control without mycorrhizae. Data was collected on rate of callusing, chlorophyll content and rate of root infection by mycorrhizal fungus. Application of 50kg Mycorrhizae ha-1 exhibited the highest callusing rate on clone SC 15/10 with significant differences (P≤0.05) observed on the chlorophyll content from week 1 to week 30 where the standard application of phosphorus plus 50kg Mycorrhizae ha-1 on clone S 15/10 had the highest content consistently throughout the trial. The highest frequency of mycorrhizae colonization in the rhizosphere was observed when 70kg ha-1 was added under clone SC 12/28. AMF strains are recommended for use on tea propagation in improving callusing rate and the chlorophyll content at a rate of 50kg Mycorrhizae ha-1.
- Mycorrhizal fungi
- soil life
How to Cite
Pandey A, Palni LMS. Tea rhizosphere: microbial diversity and characteristic features and comments on microbial communication in rhizosphere. Inter J Tea Sci . 2004;3:285–290.
Hayatsu M. The lowest limit of pH for nitrification in tea soil and isolation of an acidophilic ammonia oxidizing bacterium. Soil Sci. and Plant Nutr. 1993;39:219- 226.
Schroeder MS, Janos DP. Phosphorus and intraspecific density alter plant responses to arbuscular mycorrhizas. Plant Soil. 2004;264:335–348.
Singh S, Pandey A, Chaurasia B, Palni LMS. Diversity of arbuscular mycorrhizal fungi associated with the rhizosphere of tea growing in ‘natural’ and ‘cultivated’ ecosites. Biol Fertil Soils. 2008a;44:491–500.
Klironomos JJ. Host-specificity and functional diversity among Arbuscular mycorrhizal fungi. Microb. Biosyst. New Front. 2000;845–851.
Smith SE, Smith FA. Roles of arbuscular mycorrhizas in plant nutrition and growth: new paradigms from cellular to ecosystems scales. Annu Rev Plant Biol. 2011;63:227–250.
Smith S, Dickson S. VA Mycorrhizas: Basic research techniques. Cooperative Research Centre for Soil and Land Management, Glen Osmond; 1997.
Singh S, Pandey A, Palni LMS Screening of Arbuscular mycorrhizal fungal consortia developed from the rhizospheres of natural and cultivated tea plants for growth promotion in tea [Camellia sinensis (L.) O. Kuntze]. Pedobiologia . 2008;52:119–125.
Gazey C, Abbott LK, Robson AD. Indigenous and introduced arbuscular mycorrhizal fungi contribute to plant growth in two agricultural soils fromsouth-western Australia. Mycorrhiza. 2004;14:355–362.
Gesimba RM. The tea industry in Kenya; the challenges and positive developments. Journal of Applied Sciences; 2005.
Anonymous. Kenya Tea Development Authority Annual Report. Government Printer, Nairobi, Kenya; 2003.
Tanwar A, Aggarwal A, Kadian N, Gupta A. Arbuscular mycorrhizal inoculation and super phosphate application influence plant growth and yield of Capsicum annuum. Journal of Soil Science and Plant Nutrition. 2013;13:55-66.
Wachira S. Crop Improverment. In: The Tea Growers Handbook, Rutto, J.K. (Ed.). 5th Edn., Tea Research Foundation, Kenya; 2002.
Srivastava R, Khalid A, Singh US, Sharma, AK. Evaluation of Arbuscular mycorrhizal fungus, fluorescent Pseudomonas and Trichoderma harzianum formulation against Fusarium oxysporum f. sp. lycopersici for the management of tomato wilt. Biol. Control. 2010;53:24–31.
Abstract View: 95 times
PDF Download: 65 times