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The effects of several crop management systems on bread wheat yields in the Ethiopian Highlands 

Amsal Tesfaye Tarekegne; Tanner, D.G.; Amanuel Gorfu; Tilahun Geleto; Zewdu Yilma (African Crop Science Society, 1997)
Crop management (CM) research conducted in Ethiopia has tended to quantify yield gains and losses associated with single management factors, making it difficult to determine the relative importance of main effects and ...
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Grass weed competition with bread wheat in Ethiopia. 1. Effects on selected crop and weed vegetative parameters and yield components 

Taye Tessema; Tanner, D.G.; Mengistu Hulluka (African Crop Science Society, 1996)
Competition effects of four of the predominant grass weed species in Ethiopia (Avena abyssinica Hoechst, Lolium temulentum L., Snowdenia polystachya Fresen (Pilg), and Phalaris paradoxa L.) on the morphological characters, ...
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Potential for cereal-based double cropping in Bale Region of Southeastern Ethiopia 

Tanner, D.G.; Zewdu Yilma; Lemma Zewdie; Girmay Gebru (African Crop Science Society, 1994)
A double cropping trial was conducted under bimodal rainfall conditions for two years at the Sinana Research Centre in southeastern Ethiopia. Compared to the traditional farmers’ practice of fallowing land during one of ...
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Relative performance of testers to identify elite lines of corn (Zea mays L.) 

Castellanos, J.S.; Hallauer, A.R.; Cordova, H.S. (Consiglio per la Ricerca e la sperimentazione in Agricoltura, Unità di Ricerca per la Maiscoltura, 1998)
Testcross evaluation is used to determine the relative potential of corn (Zea mays L.) lines in a hybrid breeding program. Choice of tester is important for efficient selection among lines for their potential in hybrids. ...
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Heterosis and combining ability of CIMMYT's tropical early and intermediate maturity maize (Zea mays L.) germplasm 

Beck, D.L.; Vasal, S.K.; Crossa, J. (Consiglio per la Ricerca e la sperimentazione in Agricoltura, Unità di Ricerca per la Maiscoltura, 1990)
A 10 parent diallel was formed to determine combining ability and heterotic patterns among CIMMYT'S tropically adapted, early and intermediate maturity maize (Zea mays L.) gene pools and populations. The parents and their ...
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Improvement of durum wheat yield and associated effects on morpho-physiological characters 

Amsal Tesfaye Tarekegne; Tanner, D.G.; Tesfaye Tesemma; Getinet Gebeyehu (African Crop Science Society, 1995)
Six durum wheat ( Triticum turgidum var. durum check for this species in other resources ) cultivars released in the central highlands of Ethiopia from 1967 to 1992, were evaluated to estimate progress in improving grain ...
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Improvement in yield of bread wheat cultivars released in Ethiopia from 1949 to 1987 

Amsal Tesfaye Tarekegne; Tanner, D.G.; Getinet Gebeyehu (African Crop Science Society, 1995)
Thirteen bread wheat ( Triticum aestivum check for this species in other resources L.) cultivars popular in the highlands of Ethiopia and representative of the period from 1949 to 1987 were studied for two cropping seasons ...
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Grain yield of wheat as affected by cropping sequence and fertilizer application in Southeastern Ethiopia 

Asefa Taa; Tanner, D.G.; Kefyalew Girma; Amanuel Gorfu (African Crop Science Society, 1997)
Cropping systems in the Ethiopian highlands consist primarily of cereals in rotation with grain legume and oilseed crops; the proportional allocation among crop species varies with altitude, rainfall, and soil type. Barley ...
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On-farm evaluation of an animal-drawn implement developed in Ethiopia for row placement of wheat seed and basal fertilizer 

Asefa Taa; Tanner, D.G.; Melesse Temesgen; Kefyalew Girma (African Crop Science Society, 1997)
Grass weeds are difficult to control by hand weeding in a broadcast wheat crop because several species are not easily distinguished from the crop at an early stage. Chemical weed control, on the other hand, can be highly ...
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Grass weed competition and calculated economic threshold densities in bread wheat in Ethiopia 

Taye Tessema; Tanner, D.G. (African Crop Science Society, 1997)
Competition effects of four of the predominant grass weed species in Ethiopia (Avena abyssinica Hoechst, Lolium temulentum L., Snowdenia polystachya Fresen (Pilg), and Phalaris paradoxa L.) on the grain yield, yield ...
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Series
CIMMYT NRG Paper (1)
Author
Tanner, D.G. (16)Vasal, S.K. (5)Amsal Tesfaye Tarekegne (4)Asefa Taa (4)Srinivasan, G. (4)Waddington, S.R. (4)Amanuel Gorfu (3)Beck, D.L. (3)Cordova, H.S. (3)Crossa, J. (3)... View More
Date Issued
1999 (3)1998 (4)1997 (6)1996 (4)1995 (5)1994 (5)1993 (1)1992 (6)1991 (2)1990 (6)
Type
Article (42)
Agrovoc
WHEAT (11)MAIZE (8)TRITICUM AESTIVUM (8)AGRICULTURAL SCIENCES AND BIOTECHNOLOGY (5)COMBINING ABILITY (5)YIELDS (5)ZEA MAYS (5)CROP ROTATION (4)HERBICIDES (4)DISEASE RESISTANCE (3)... View More
Keywords
Competition (3)Smallholder Farmers (3)Grain Yield (2)Weed Density (2)2,4-D (1)Abscisic Acid (1)Agroclimatic Analysis (1)Agronomic Efficiency (1)Animal Traction (1)Anthesis-Silking Interval (1)... View More
Region
Eastern Africa (17)Ethiopia (16)Global (11)Southern Africa (7)Zimbabwe (4)... View More


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