Vegetables
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Item Collapsible Vegetable and Fruit Crate(October,1944) Childs, A.H.B.; Department of Agriculture, Tanganyika territoryThe main object of the crate is to save space on the railways, when returning empties. Two collapsed crates take up the same amount of room as one erect one. If desired the crate can be taken to pieces, and returned at a cheaper rate. The crate described below has been found to be a convenient size for handling, it has approximately the same capacity as a petrol box. The internal dimensions are l'8" x 1'3" x 10". The, weight if made of podocarpus is between 7 and 8 kilos, if of mvule between 10 and 12 kilos, and it will contain 20 to 22 kilos of tomatoes or oranges. It has also been used for packing other varieties of vegetables such as carrots, green beans, peas, chillies, leeks, etc. For varieties such as turnips and beetroot a larger crate of similar design has been used.Item Effect of Bunching Onion Crude Extract Concentrations and Irrigation Levels on Quality of Tomato(East African Agricultural and Forestry Journal, 2022-12-15) Shikoli, E.M.; Ogweno, J.O.; Saidi, M.; Obuoro, F.W.; Egerton University, Kenya Agricultural and Livestock Research OrganizationTomato (Solanum Lycopersicon L.) fruit quality is a vital factor that should be improved through sustainable means to meet future food demands. This study aimed to determine the effect of bunching onion (Allium fistulosum) crude extract concentrations and irrigation levels on the quality of tomatoes the study was carried out at KALRO-Kakamega, Kenya. The laboratory experiment was conducted in a single-factor treatment in a Completely Randomized Design (CRD) with combinations of Allium fistulosum crude extract and different irrigation levels treated as distinct treatments. The treatments comprised combinations of different levels of Allium fistulosum; 20%, 15%, 0%, positive control with 0.5L, 1L, 1.5L and 2L levels of irrigation. In this study, Allium fistulosum crude extract combined with irrigation levels generally improved the quality parameters of the tomato plant. Shelf-life of fruits was high, under 20% combined with 1.5L of water. At the same time, total soluble solids, ascorbic acid (C6H8O6) content, lycopene content and beta-carotene (C40H56) content of tomato fruits were maintained at the highest content under 20% + 0.5 L of water then followed by 1 L of water as compared to negative control combined with 2 L of water. In conclusion, an Allium fistulosum crude extract concentration of 20% combined with 2L of water was recommended in tomato production systems to enhance tomato quality.Item Effects of Early Sesason Row Cover Protection on the Growth and Yield of Snap Beans(Kimani, K.S., 1998) Kimani, K.S.; McGill UniversityStudies Were undertaken In 1986/1987 to determine the effectiveness of a row cover agronet on the growth and yield of fresh market snap beans phaseolus vulgaris Contender, in aseries of planting dates . in both years the row cover resulted in earlier seedlings emergence as well greater cummulative emergence.the improved seedlings emergence could be attributed to the elevated soil temperature under row cover enclosure since there were no significant difference in the soil moisture levels between covered and uncovered treatmentsItem Effects of Water Stress on Growth and Yield of Field-Grown Tomatoes I : Canopy Development and Biomass Accumulation(1989) Nyabundi, J.O.; Hsiso, T.C.; University of CaliforniaIn tomato plants subjected to different levels of water stress under field conditions of deep soils, it was found that drought had little or no effect on leaf water potential. However, biomass and leaf area developments were markedly depressed. Photosynthesis of the upper-most mature leaves was also affected, but this effect was largely attributed to leaf age; the dry treatment had older leaves with low photosynthetic efficiency. It was concluded that water stress depressed biomass accumulation mainly by inhibiting leaf area development. This occurred in two ways: first, through the reduced photosynthetic area arising from a small canopy, and second, since water stress depressed leaf area development, canopies of stressed plants consisted of a relatively large proportion of old leaves, which have low photosynthetic rates. This led to lower photosynthetic efficiency in such canopies.Item Effects of Water Stress on Growth and Yield of Field-Grown Tomatoes. II: Biomass Partitioning between Vegetative and Reproductive Growth(1989) Hsiso, T.C.; Nyabundi, J.O.; University of CaliforniaMuch work has been done in attempts to understand crop water requirements during different phenological stages with a view to increasing crop yields under conditions of rainfall limitation. Many of these studies have been based on the hypothesis that moisture availability at certain phenological stages is critical to crop yield (Salter and Good, 1967). Identification of such stages would allow selective water application thus economizing on water and reducing irrigation OASIS whilst minimizing yield losses. In rained agriculture, timing of planting would be adjusted so that the critical phases would not occur during periods of drought.Item Growing Cabbage (Brassica Oleracea Var. Capitata) Under Low Cover Agronets Prevents Pest Infestation and Increases Yields in Kenya(African Phytosanitary Journal, 2023-07-30) Kasina, M.; Guantai, G.; Mbugi, J.; Mwaniki, S.; Wasilwa, L.; Kipyab, P.; Ngouajio, M.; Kenyatta University ; Kenya Agricultural and Livestock Research Organization ; Kenya Plant Health Inspectorate Service Headquarters ; Michigan State University ; Cirad UR HortsysCabbage (Brassica oleracea var. capitata) is an important vegetable crop in Kenya both in production and income provision to smallholder farmers. Pests are serious hindrance to its production and most farmers rely on synthetic insecticides. Such reliance has negative effects on non-target organisms, environment, animal and human health. This study was carried out from May to October 2011 to determine impact of low cover nets of different mesh size and cover duration on reducing cabbage pest infestation and yields. The study was conducted at Kenya Agricultural Research Institute Kabete and Practical Training Centre Thika based on a randomized complete block design with five replicates. Treatments included Agronets of fine (0.4mm) and large (0.9mm) mesh covered over the crop permanently (season-long) or temporarily (opened three times a week from 9am to 3pm) and control where no Agronet was used. The results show that the number and damage by diamondback moth (DBM) was significantly lower on cabbages grown under the Agronets compared with control. Infestation by thrips was lower on cabbages grown under permanent cover compared with those under temporal cover and without cover. However, there was no significant difference of aphids infestation. The marketable yield was significantly higher on cabbages grown under the Agronets, recording about 17% yield loss compared with control that recorded about 90% yield loss. The study concludes that Agronets provide an important component of integrated pest management strategy for cabbage production in Kenya with high crop yields benefit and highly recommended for application by growers.Item Horticultural Research and Development Project in Western Kenya, 1988(Kenya Agricultural Research Institiute, 1988) Ouma, G.; Onyango, M.; Bore, J.K.A.; Okora, J.O.; Mumera, F.; Kenya Agricultural Research Institiute; National Pyrethrum and Horticultural Research Centre, Molo; Western Agricultural Research Centre, Kakamega; Regional Agricultural Research Centre, Kisii; National Sugar Research Centre, Kibos; National Plant Breeding Research Centre, Njoro; National Agricultural Research Centre, KitaleThe Horticultural Research and Development Project for West of Rift Valley, was compiled after a draft proposal was discussed with the representatives of the German Agency for Technical Cooperation (GTZ) and approval for production of the final project proposal was given. To ensure timely implementation of the project and harmonization of mandate areas of research task force of scientists from National Plant Breeding Research Centre, Njoro, National Pyrethrum & Horticultural Research Centre, Molo, Western Agricultural Research Centre, Kakamega, and the National Horticultural Research Centre, Thika were selected to compile the project proposals. The research programmes in the project areas will mainly focus on the fruits and vegetables variety trials, fertilizers, cultural practices, role of manure and post-harvest handling.Item Influence of Seedling Age at Transplanting and Time of Poultry Manure Application on Growth and Yield of Tomato(1988) Asiegbu, J.E.; University of NigeriaWith ground nursery, the best age for transplanting tomato seedlings was 16-21 days after sowing in the nursery or at about 5 true-leaf stage although transplanting could be delayed for up to 28 days (6 true-leaf stage) without affecting performance significantly. At a poultry manure rate of 14 t ha -1, incorporation one week before transplanting gave the best yield results while application made 3 weeks before transplanting gave significant yield reductions of 22-39%.Item KARI Horticultural crops Research Strategies for HTFCDP Areas.(Kenya Agricultural Research Institiute, 2000) Kenya Agricultural Research InstitiuteHorticultural Industry a fast-.growing sub-sector of Agriculture is the mainstay of Kenya's economy. It contributes very heavily in income generation, employment, foreign exchange earnings and the provision of raw materials for the industrial sector. The priority in Kenya's agricultural policy is to achieve internal self-sufficiency in food supply, to maintain adequate levels of strategic food reserves and generate a surplus of crop and livestock produce for export. In 1990 the sector accounted for 28% of Gross Domestic Product, employing over 70% of the rural workforce and generating about 64% of export earnings.Item National Agricultural Research Project Quarterly Report of activities and Progress October - December 1998(National Veterinary Research Centre, 1998) National Agricultural Research CentreOut of 16 cultivars in the trial at NHRC, Thika, four cul1ivars namely_Sivan, Tropicana Hybrid, BOS71 and Capri F 1 were identified as the most promising. However, in overall rating of the varieties, the consumers ranked the cultivar Tropicana hybrid as the best followed by Red Synthetic, Sivan, BOS71 and Carpi F 1 based on medium size and red colour of bulbs.Item A Note on the Rooting of Derris Cuttings by a Root-Promoting Substance(1938) Glover,J.; East African Agricultural Research Station, AmaniThe experiment was designed to test whether the root-promoting substance beta-indole-acetic acid would produce an increased rooting response in'the already easily rooted cuttings of Derris and if such a response could be easily detested. The material used in the experiment was obtained from the Amani strain of Derris elliptica plants. As the plants were reproduced vegetatively from cutting's of a single plant at Kew they may be considered to be a clonal variety. The cuttings, all from healthy plants, were selected for their uniformity of length and thickness. There were three nodes on each. Of the 700 cuttings used, 350 were treated by immersing their basal inch for 24 hours in a 1/20,000 solution of betaindole-acetic acid in distilled water; the 350 control cuttings were similarly treated with distilled water only. The cuttings were arranged in randomized plots, fifty in each. The plots were arranged in seven blocks to facilitate analysis of the results for possible variation in rooting response due to the position of the plots in the propagating bed. After two months in the nursery bed the cuttings were carefully excavated and the number and lengths of the roots on each cutting were recorded. The results, when analysed for inherent variability and error due to position in the nursery bed, are given in the TableItem A Note on the Rooting of Derris Cuttings by a Root-Promoting Substance(1938) Glover, J.The experiment was designed to test whether the root-promoting substance beta-indole-acetic acid would produce an increased rooting response in the already easily rooted cuttings of Derris and if such a response could be easily deteded. The material used in the experiment was obtained from the Amani strain\ of Derris elliptica plants. As the plants were reproduced vegetative from cuttings of a single plant at Kew they may be considered to be a clonal variety. The cuttings, all from healthy plants, were selected for their uniformity of length and thickness. There were three nodes Ion each. Of the 700 cuttings used, 350 were treated by immersing their basal inch for 24 hours in a 1/ 20,000 solution of betaindole- acetic acid in distilled water; the 350 control cuttings were similarly treated with distilled water only. The cuttings were arranged in randomized plots, fifty in each. The plots were arranged in seven blocks to facilitate analysis of the results for possible variation in rooting response due to the position of the plots in the propagating bed.Item Production Of Quality Seed Of African Indigenous Vegetables Training Manual(Kenya Agriculture Research Institute, 2012) Kenya Agriculture Research InstituteAfrican indigenous vegetables (AIV) have traditionally been a significant contributor to food security and nutrition for smallholder farmers in East Africa and are also important in providing incomes, particularly for women who sell vegetables at local markets to supplement their income. However, the potential to meet a growing demand for these vegetables has been limited by lack of good quality seed. In Africa , less than ten per cent of the seed planted is purchased from the formal market. In order to achieve increased uptake by farmers, sufficient quantities of seed of preferred varieties should be available and accessible. The best way of achieving this target is through on farm seed production by establishing sustainable farmer-led seed enterprises. The Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA) facilitated a partnership of organisations, led by CABI , to work on a project to scale up farmer-led seed enterprises in Kenya and Tanzania, testing three seed production models. The project was implemented in collaboration with Kenya Agricultural Research Institute (KARl) Kisii, Kenya Seed Company Ltd. (KSC) and Technical Adoption Through Research Organisation (TATRO) with Kenya Plant Health Inspectorate Services (KEPHIS) playing a key role in seed quality control in Kenya. The partners in Tanzania included, Horticultural Research and Training Institute Tengeru (HORTI-Tengeru), Tanzania Official Seed Certification Institute (TOSCI), INADES-Formation Tanzania and AVRDC-The World Vegetable Centre, Regional Centre for Africa.Item Some Uganda Vegetables(1943) Purseglove, J.W.; Uganda ProtectorateThere is at present a marked shortage of vegetables in East Africa caused by the large increase in European population, the prolonged import, drought and the difficulty of importing European vegetable seeds. Greater use could be made of native spinaches and pot-herbs many of which occur as common weeds and provide a palatable addition to the European menu. Even in normal times the maintenance of a steady supply of fresh green vegetables is often a difficult problem, especially when on safari.
