Maize seed selection by East African smallholder farmers and resistance to Maize streak virus
Interviews identified that most small‐scale maize farmers in central Uganda and in the Southern Highlands of Tanzania plant home‐saved seed of landraces or seed derived from various open‐pollinated and hybrid varieties. Some farmers also bought a portion of their seed, either certified seed, locally...
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| Veröffentlicht in: | Annals of applied biology 2005-10, Vol.147 (2), p.153-159 |
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| container_title | Annals of applied biology |
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| creator | Gibson, R.W Lyimo, N.G Temu, A.E.M Stathers, T.E Page, W.W Nsemwa, L.T.H Acola, G Lamboll, R.I |
| description | Interviews identified that most small‐scale maize farmers in central Uganda and in the Southern Highlands of Tanzania plant home‐saved seed of landraces or seed derived from various open‐pollinated and hybrid varieties. Some farmers also bought a portion of their seed, either certified seed, locally traded seed or even maize sold for consumption. Selection for home‐saved seed was generally among harvested cobs. Big cobs with many, regularly arranged, large, white, flint kernels were preferred. A maize cob may bear several hundred seeds, so a farmer needs to save |
| doi_str_mv | 10.1111/j.1744-7348.2005.00021.x |
| format | Article |
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Some farmers also bought a portion of their seed, either certified seed, locally traded seed or even maize sold for consumption. Selection for home‐saved seed was generally among harvested cobs. Big cobs with many, regularly arranged, large, white, flint kernels were preferred. A maize cob may bear several hundred seeds, so a farmer needs to save <1% of cobs for seed. A form of resistance in which plants show only moderate symptoms and suffer only a small reduction in yield when infected has been incorporated in some released varieties. Because not all plants in most crops are infected and because plants uninfected with Maize streak virus (MSV) tend to produce bigger cobs than infected resistant plants, the few cobs selected by a farmer for seed may all be from the uninfected ‘escapes’, with no preferential selection of resistant types. On‐station simulation of the farmers’ selection process in a crop of the MSV‐resistant maize variety, Longe 1, confirmed this. An alternative very strong form of MSV resistance was identified.</description><identifier>ISSN: 0003-4746</identifier><identifier>EISSN: 1744-7348</identifier><identifier>EISSN: 1744-1348</identifier><identifier>DOI: 10.1111/j.1744-7348.2005.00021.x</identifier><identifier>CODEN: AABIAV</identifier><language>eng</language><publisher>Oxford, UK; Malden, USA: Blackwell Science Ltd</publisher><subject>Africa ; Agronomy. Soil science and plant productions ; Biological and medical sciences ; corn ; disease resistance ; farmer selection ; farmers ; Fundamental and applied biological sciences. Psychology ; Genetics and breeding of economic plants ; host plant disease resistance ; landraces ; Maize streak virus ; Phytopathology. Animal pests. 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An alternative very strong form of MSV resistance was identified.</description><subject>Africa</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>corn</subject><subject>disease resistance</subject><subject>farmer selection</subject><subject>farmers</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Genetics and breeding of economic plants</subject><subject>host plant disease resistance</subject><subject>landraces</subject><subject>Maize streak virus</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>plant viruses</subject><subject>Plant viruses and viroids</subject><subject>seeds</subject><subject>Zea mays</subject><issn>0003-4746</issn><issn>1744-7348</issn><issn>1744-1348</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqNkF1vFCEYhYnRxHX1N8iN3s0IAzNAvFqbbltTaxpt9MaQdxhQtuxMhVnd7a-XcTb1VkL4es9zgIMQpqSkub3ZlFRwXgjGZVkRUpeEkIqW-0do8VB4jBb5lBVc8OYpepbSJm8VUdUCffsA_t7iZG2Xh2DN6Icetwd8CmnEKxe9gR6nLYTwYwidjdhB3NqYMPQdjjb5NEJvLB4HfLQao4Vb_MvHXXqOnjgIyb44zkt0sz79fHJeXH48uzhZXRaGM04LZmQjKamJ65wCBa0D6LhxtWpEx5hoTaO6xtRKGiaFYbaVDhh3rWrbyuTlEr2efe_i8HNn06i3PhkbAvR22CVNlWhkXcsslLPQxCGlaJ2-i34L8aAp0VOeeqOn2PQUm57y1H_z1PuMvjreAclAcDF_26d__ERMfYnezrrfPtjDf_vr1epdRTNdzHTO1e4faIi3uhFM1PrL1Zk-v75ef71av9c861_OegeDhu8xv-jmU0UoI5Q0gnDF_gBzu6Iz</recordid><startdate>200510</startdate><enddate>200510</enddate><creator>Gibson, R.W</creator><creator>Lyimo, N.G</creator><creator>Temu, A.E.M</creator><creator>Stathers, T.E</creator><creator>Page, W.W</creator><creator>Nsemwa, L.T.H</creator><creator>Acola, G</creator><creator>Lamboll, R.I</creator><general>Blackwell Science Ltd</general><general>Blackwell</general><scope>FBQ</scope><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7T7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>P64</scope></search><sort><creationdate>200510</creationdate><title>Maize seed selection by East African smallholder farmers and resistance to Maize streak virus</title><author>Gibson, R.W ; Lyimo, N.G ; Temu, A.E.M ; Stathers, T.E ; Page, W.W ; Nsemwa, L.T.H ; Acola, G ; Lamboll, R.I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4341-3c8681050fdf9a9abfaad4cf5967d337bc69d6c598c387c3eb8fa34fb9bb2cfa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Africa</topic><topic>Agronomy. 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Some farmers also bought a portion of their seed, either certified seed, locally traded seed or even maize sold for consumption. Selection for home‐saved seed was generally among harvested cobs. Big cobs with many, regularly arranged, large, white, flint kernels were preferred. A maize cob may bear several hundred seeds, so a farmer needs to save <1% of cobs for seed. A form of resistance in which plants show only moderate symptoms and suffer only a small reduction in yield when infected has been incorporated in some released varieties. Because not all plants in most crops are infected and because plants uninfected with Maize streak virus (MSV) tend to produce bigger cobs than infected resistant plants, the few cobs selected by a farmer for seed may all be from the uninfected ‘escapes’, with no preferential selection of resistant types. On‐station simulation of the farmers’ selection process in a crop of the MSV‐resistant maize variety, Longe 1, confirmed this. 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| ispartof | Annals of applied biology, 2005-10, Vol.147 (2), p.153-159 |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Africa Agronomy. Soil science and plant productions Biological and medical sciences corn disease resistance farmer selection farmers Fundamental and applied biological sciences. Psychology Genetics and breeding of economic plants host plant disease resistance landraces Maize streak virus Phytopathology. Animal pests. Plant and forest protection plant viruses Plant viruses and viroids seeds Zea mays |
| title | Maize seed selection by East African smallholder farmers and resistance to Maize streak virus |
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