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Advances in Crop Science and Technology

.: Home > Advances in Crop Science and Technology > 2015 > Volume 3 Number 4 > Abiyot Lemma1 *, Hadush Hagos1 , Yohannes Zekarias2 and Amrote Tekle1

Study on the Reaction of Sugarcane Genotypes (CIRAD-2011) to Sugarcane Smut (Sporisorium scitamineum) in the Ethiopian Sugarcane Plantations

Abiyot Lemma1 *, Hadush Hagos1 , Yohannes Zekarias2 and Amrote Tekle1
1Ethiopian Sugar Corporation Research and Training P.o.box 15, Wonji, Ethiopia 2Bayer Trade Representative Office P.o.box 1/1065, Addis Ababa, Ethiopia
Abstract :

Sugarcane smut disease caused by the fungus Sporisorium scitamineum significantly reduces the yield and quality of sugarcane. Study on the reaction of thirty one newly imported genotypes from CIRAD was conducted to evaluate their reaction to sugarcane smut at Metahara sugarcane plantation. The findings of this study were based on collection of sugarcane smut spores, testing the viability of the spore and inoculating the tested material by immersing in the spore suspension (5 x 106 spores ml-1) for 30 minutes. During the course of the experiment, data on smut stool count begins six weeks after planting and continues at 10-day intervals till ten months after planting. Evaluation of genotypes for resistance to smut was made based on percentage of infected stools by using a 0-9 disease rating scale. Among the tested materials, no genotypes were shown an immune reaction to the Ethiopian sugarcane smut isolates. While about 81.3% of genotypes have shown from moderately resistant to very highly resistant reaction in which 21.9%, 9.4%, 21.9% and 28.1% were Very Highly Resistant (VHR), Highly Resistant (HR), Resistant (R) and Moderately Resistant (MR) reactions to sugarcane smut respectively. 18.7% of genotypes were shown Intermediate (I) (3.1%), Susceptible (S) (6.25%) and Very highly susceptible (VHS) (9.4%) reactions, so that these genotypes PSR 97 051 (I), FG 02 551 (S), FG 03 396 (S) FG 06 729 (VHS), FG 03 173 (VHS), and FG 03 526 (VHS), won’t be considered as promising genotypes which can competently resist to sugarcane smut in the country. 

Keywords :
Reaction; Sugarcane genotypes; CIRAD-2011; Sugarcane smut; Sporisorium scitamineum

Date Deposited : 02 Apr 2016 11:52

Last Modified : 04 Apr 2016 11:27

Official URL: http://1Ethiopian Sugar Corporation Research and Training P.o.box 15, Wonji, Ethiopia 2Bayer Trade Representative Office P.o.box 1/1065, Addis Ababa, Ethiopia

Volume 3, Number 4, November 2015 , ISSN ISSN: 2329-8863

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