Adaptability Study of Improved Irish Potato (Solanum tuberosum L.) Varieties at South Ari Woreda, Ethiopia

  1. Abstract Three improved Irish potato varieties and one local check were evaluated with the objective of selecting adaptable best performing Irish potato varieties and tolerant to late blight for Irish potato production areas of South Omo zone. The trial was conducted at Senmamer kebele of Debub Ari district, Ethiopia during 2013 cropping seasons using randomized complete block design under rain faid condition. Tuber yield, plant height, number of stem, crop reaction to late blight, average number of tuber per plant, average weight of tuber per plant, average tuber diameter, small size tuber, medium size tuber and large size tuber ranged from 2.5 to 12.6, 30.3 to 58.9, 2.2 to 4.5, 5 to 47.8, 8.2 to 10.7, 0.14 to 0.78, 8.1 to 11.2, 0.04 to 0.2, 0.04 to 0.3, 0.05 to 0.3, respectively .This experiment suggests that the variety Belete was gave high yield and resistant to late blight compare to the other tested varieties.

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Evaluation of Maize Variety for Ear Rot (Fusarium graminearum) in South Omo Zone of Ethiopia

  1. Abstract: Maize is a staple food crop which plays a great role in food security in Ethiopia. It is affected by many diseases which reduces yield. Mycotoxin contamination of maize grain (Zea Mays L.) is a global threat to safety both for human food and animal feed. Mycotoxins are secondary metabolites produced by fungi, which may be toxic or have other debilitating effects on living organisms. The major control methods are use of relative resistant or tolerant varieties mean that varieties with tight husk coverage, harvest on the time, proper storage and good crop management. An experiment conducted on experimental field of Jinka Agricultural Research Center to evaluate 12 improved maize varieties and one local check using Randomized Complete Block Design with three replications. The objective of the study was to select maize variety /varieties resistant/tolerant to ear rot. The variety BH660 and BH540 was highly resistant compare to the other tested varieties with the incidence of 19.00% and 14.66% and a grain yield of 3.70kg/plot and 3.79kg/plot respectively. The varieties BH543, Melkassa7 and BH661 were susceptible with the incidence of 64.00%, 50.13%, and 64.33% and their grain yields were of 3.37kg/plot,2.62kg/plot and 3.62kg/plot respectively. On the other hand BHQPY545 and local check were susceptible to ear rot but their yields were 4.05kg/plot and 3.84kg/plot respectively. 

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EFFECT OF CULTIVATION FREQUENCY ON GROWTH, YIELD AND YIELD COMPONENTS OF BREAD WHEAT (Triticum Aestivum (L.) AT SELMAMER, SOUTHERN ETHIOPIA

  1. field experiment was carried out at Selmamer during the 2014 cropping season to determine the effects of cultivation frequency on growth, yield and yield components of bread wheat (Triticum aestivum L.). The treatments used in the study were seven cultivation frequencies (30 DAE, 45 DAE, 60 DAE, 30 and 45 DAE, 30 and 60 DAE, 45 and 60 DAE, 30, 45 and 60 DAE) and one control or no cultivation. The experimental design was a randomized complete block design (RCBD) with four replications. Phenological and growth parameters such as yield and yield components, total biomass and harvest index were studied. The result depicted that frequency of cultivation had brought no significant effect on the studied phenological parameters. 

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