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Browsing Faculty of Agriculture e-Theses Collection by Issue Date

Now showing items 21-40 of 84

Assesment of Sustainability of Different Populations of Stemborer Species for the Development of Cotesia Flavipes (Hymenoptera: Braconidae) and the Establishment of the Latter in Zimbabwe.

Mushore, Kwadzanai (2012-08-30)

Maize and sorghum are very important crops in Zimbabwe. They are, however, attacked by several pests, among them stemborers. Host suitability studies using Cotesia flavipes Cameron (Hymenoptera: Braconidae) against Chilo ...
Effects Of Grain Legume Species And Cowpea ( Vigna unguiculata L. Walp ) Populations On Witch Weed ( Striga asiatica L. Kuntze ) Phenology In The Smallholder Farming Sector Of Zimbabwe

Rimawu, Shupikayi Piason (2012-08-30)

Two on-farm experiments were conducted in Eastern Zimbabwe`s Chinyika Resettlement Area (180 02" and 180 17" S and 320 09" and 320 24" E), during 2002/2003 rainy season, to evaluate the effects of three grain legumes ...
Combining Ability Analysis for Early Maturity and Phaeosphaeria Leaf Spot Resistance in Regional Maize Germplasm

Mhembere, Oliver (2012-08-30)

Phaeosphaeria leaf spot (P. maydis Henn.) disease has the potential to cause substantial yield losses in maize (Zea mays L,). Maize is grown by smallholder farmers without fungicides; hence the need to breed for resistance ...
Improving maize (Zea mays L.) growth and yield using Jatropha (Jatropha curcas L.) seed cake under Zimbabwean soil condition

Mavankeni, Busiso Olga (2012-08-30)

A research study exploring the use of jatropha seed cake as a sole source of nutrients and used in combination with inorganic N fertilizer was conducted on station at Henderson Research Station on sandy and clayey soils ...
Effects of Foliar Fertilizer Application during the Seed filling period on Soyabean (Glycine Max (L) Merr.) Grain Yield and Seed Quality

Nyabadza, Rutendo (2012-08-30)

One major factor that prevents widespread adoption of soyabean (Glycine Max (L) Merr.) has been attributed to low yields. A research study focusing on the development of technologies to increase soyabean productivity and ...
Hardening, Population and Fertilizer Effects on Paprika (Capsicum annuum L.) Establishment and Yield in Chinyika Resettlement Area, Zimbabwe.

Mavengahama , Sydney (2012-08-30)

On–farm trials on paprika (Capsicum annuum L.) agronomy were carried out in Chinyika Resettlement Area during the 2000/1 to 2002/3 cropping seasons. The effect of nursery seedling density and hardening treatment on seedling ...
Genotype X Environment Interaction Effects on the Developmental Time, Kernel Modification and Yield of Experimental Quality Protein Maize (Zea mays L.) hybrid Varieties

Shava, Justify Gotami (2012-08-30)

Genotype „e environment interactions occur in crops grown in more than one environment such that it is unusual for a single genotype to perform better than other genotypes at all the locations in which they are grown posing ...
Selection for High Grain Yield and Determination of Heritable Variation in Biomass Yield, Grain Yield and Harvest Index in Different Plant Height Classes of Breeding Populations of Spring Wheat (Triticum Aestivum L.).

Havazvidi, Ephrame Kudzaishe (2012-08-30)

High grain yield is a prerequisite in the release of wheat genotypes intended for production under high input and capital-intensive cultures such as is practiced in Zimbabwe. Zimbabwe experiences shortages of wheat grain ...
INTERCROPPING AND LEAF HARVEST MANAGEMENT FOR IMPROVED LEAF YIELDS IN TWO TRADITIONAL VEGETABLES: PUMPKIN (Cucurbita maxima L.) AND MUSTARD RAPE (Brassica juncea Czern.) IN ZIMBABWE.

Maereka, Enock Kuziwa (2012-08-30)

Studies were carried out to establish ideal component combinations and relative populations, relative planting dates, leaf harvest practices and the effects of nitrogen in intercrops involving food crops (maize and groundnut) ...
Evaluation of Draught Animal Power Systems for Maize and Cotton Production at Smallholder-Farmer Level in Masvingo Province.

Koza, Tirivangani (2012-08-30)

An evaluation of smallholder draught animal power systems was conducted in six study areas in Masvingo and Chivi districts of Masvingo province over two seasons 1999-2000 and 2000-2002. The objective was to investigate the ...
Molecular Characterisation of Verticillium dahliae Kleb Isolates and Comparison of their Virulence on Selected Cotton Varieties in Zimbabwe.

Mapope, Nyamande (2012-08-30)

A study to determine the virulence of five Verticillium dahliae isolates on five varieties of cotton (SZ 9314, G 501, FQ902, BC 853 and 563-97-12) was carried out under both field (at five sites Cotton Research Institute ...
Developing a method for the enhancement of the Beta Carotene content of Sweet Potato (cv BRONDAL) using Protoplast Technology

Masekesa, Rose Tafadzwa (2012-08-30)

Agronomically superior sweet potato (Ipomoea batatas) variety Brondal contains relatively low amounts of vitamin A as opposed to low yielding variety Nemagold, which is relatively rich in high amounts of the nutrient. The ...
Evaluating Hybrid-Maize Simulation Model for Grain Yield Estimation in Hybrid Seed Maize Production

Musundire, Lennin (2012-08-30)

The study was carried out to determine the effect of Male Planting Date (MPD) and Female Plant Population (FPP) on the Grain Yield (GY), yield components and flowering of a three-way hybrid. The study also evaluated ...
Identification of Fungal Seed Borne Pathogens in Farm Saved and Certified Seed of Sorghum (Sorghum Bicolor (L.) Moench) and Evaluation of the Incidence and Severity of Seed Borne and Non-seed Borne Disease in the Field.

Jere, Josephine (2012-08-30)

A study to identify fungal seed borne pathogens on sorghum seed samples and to assess seed to field transmission of these pathogens was carried out at the Crop Science Department in the 2003/04 season. Seed samples collected ...
Relationship of molecular genetic distance of seven quality protein maize (Zea mays L.) inbred lines with specific combining ability and grain yield of hybrids

Tembo, Elliot (2012-08-30)

Quality protein maize (QPM) with the opaque-2 gene has double the amount of the essential amino acids (tryptophan and lysine) as compared to normal endosperm maize but the gene is associated with undesirable agronomic ...
Genetic variability, host specificity and resistance in Striga Asiatica-host plant interactions

Musimwa, Collins (2012-08-30)

Genetic analyses were conducted on Striga asiatica populations collected from different host species and geographic areas throughout Zimbabwe. These collections had been suspected to differ in their virulence, leading to ...
“ Heterosis, Combining ability and Tester Identification of CIMMYT maize (Zea Mays L) adapted to low N conditions

Ziyomo, Cathrine (2012-08-30)

The production of high yielding single cross maize testers with good combining ability and the potential to discriminate materials under evaluation across diverse environments, is important in breeding programs. Testers ...
The Search for Molecular Markers, Parental Characterisation and inheritance Studies of Witchweed [Striga Asiatica (L.) Kuntze] Resistance in Sorghum [Sorghum Bicolor (L.) Moench].

Mutengwa, Charles Shelton (2012-08-30)

Sorghum [Sorghum bicolor (L.) Moench] is ranked the third most important cereal crop in Zimbabwe, after maize and wheat. The major biotic constraint to sorghum production by resource poor farmers (RPFs) is attack by the ...
Effects of cotton-cowpea intercropping on crop yields and soil nutrient status under Zimbabwean rain-fed conditions

Rusinamhodzi, Leonard (2012-09-03)

Intercropping of cotton and cowpea is one of the ways to improve food security and soil fertility while generating and maintaining cash income of the rural poor. A study was carried out to find out the effects of cotton-cowpea ...
The Effects of Improved Fallows and Tillage Management on Soil and Water Conservation in a Sandy Soil.

Nyamadzawo, George (2012-09-03)

Research on improved fallows has concentrated on soil fertility benefits neglecting possible benefits to soil and water conservation. The objective of this study was to determine changes in infiltration rates, water and ...

Now showing items 21-40 of 84

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