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Volume 3 Issue 12
 
Volume & Issue: Volume 3 Issue 12

An Inoculum of Endophytic Fungi for Improved Growth of a Traditional Rice Variety in Sri Lanka
  Volume 3,Issue 12
 

Author :

D.Wijesooriy, N.Deshappriya

 

Abstract :

There is renewed interest in cultivating traditional rice varieties as they are more amenable to organic farming practices. However, as their yield is comparatively low, development of strategies to enhance their performance is necessary. Endophytes of plants are reported to promote growth and yield of a number of crop varieties. Therefore, this study was aimed at studying the endophytic fungal community associated with the traditional rice variety Kuruluthuda with a view to evaluate their capacity to enhance plant growth and yield. Twenty seven endophytic fungal species were isolated from different parts of Kuruluthuda rice plants collected from a paddy field cultivated using organic fertilizers. Two frequently isolated endophytic fungi i.e. Acremonium and Arthrobotris (frequencies 60% and 38.6% respectively) were introduced separately and in combination to the seedlings using spore suspension and plate methods to determine their effect on growth and yield under green house and field conditions. Endophyte inoculated plants showed a significant difference (P ? 0.05) in plant growth (height, fresh weight and dry weight), number of tillers and yield when compared with non-inoculated plants. The effect of Acremonium, Arthrobotris when introduced in combination showed a significant increase (P ? 0.05) of the fresh weight, dry weight, tiller number and yield when compared to their individual effects under field conditions. This is the first report of the endophytic mycoflora of the rice variety Kuruluthuda and the results show that the two endophytes can be developed as an inoculum to improve plant growth and yield of the rice variety tested.

 

Keywords :

Endophytic fungi, Organic fertilizer, Traditional rice cultivation, Kuruluthuda

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