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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/02/1992 |
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Data da última atualização: |
04/02/1992 |
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Autoria: |
HATHEWAY, W. H. |
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Título: |
Convenient plot size. |
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Ano de publicação: |
1961 |
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Fonte/Imprenta: |
Agronomy Journal, Madison, v.53 , n.4, p.279-280, 1961. |
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Idioma: |
Inglês |
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Conteúdo: |
Banana (Musa spp.) is an important perennial crop in tropical countries. The optimum plot size and the number of replications required to detect significant differences in bunch weight were investigated using banana cv. Valery, grown in Ultisols under 2 different management practices (alley cropping with multispecies hedgerows or monocropping in cleared land), at 2 locations (one in Nigeria, the other in Cameroon where only alley cropping was investigated) in the humid forest zone of sub-Saharan Africa. The methods of maximum curvature and comparison of variances were used to determine optimum plot size; the number of replications was estimated by Hatheway's method. The optimum plot size in an alley cropping system was determined as a single row of 5 plants. The optimum plot size in a monocropping system was calculated as a single row of 20 plants. It is suggested that alley cropping of bananas with multispecies hedgerows may be an adequate system not only to maintain diversity but also for greater efficiency in testing improved germplasm. A table was developed, indicating the expected detectable true mean differences for bunch weight per plant for different numbers of treatments tested (5-30), plants per plot (5-40), replications (2-6), and management practices. This table allows researchers to select minimum trial sizes, according to their objectives and available resources. |
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Palavras-Chave: |
Agroforestry systems; Assessment; Development; Monoculture; Plot size; Techniques; Trials; Tropical fruits. |
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Thesaurus Nal: |
bananas; crop management; cropping systems; experimental design; field experimentation; fruit crops; fruits; intercropping; mathematical models; research; statistical analysis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02271naa a2200349 a 4500
001 1278644
005 1992-02-04
008 1961 bl --- 0-- u #d
100 1 $aHATHEWAY, W. H.
245 $aConvenient plot size.
260 $c1961
520 $aBanana (Musa spp.) is an important perennial crop in tropical countries. The optimum plot size and the number of replications required to detect significant differences in bunch weight were investigated using banana cv. Valery, grown in Ultisols under 2 different management practices (alley cropping with multispecies hedgerows or monocropping in cleared land), at 2 locations (one in Nigeria, the other in Cameroon where only alley cropping was investigated) in the humid forest zone of sub-Saharan Africa. The methods of maximum curvature and comparison of variances were used to determine optimum plot size; the number of replications was estimated by Hatheway's method. The optimum plot size in an alley cropping system was determined as a single row of 5 plants. The optimum plot size in a monocropping system was calculated as a single row of 20 plants. It is suggested that alley cropping of bananas with multispecies hedgerows may be an adequate system not only to maintain diversity but also for greater efficiency in testing improved germplasm. A table was developed, indicating the expected detectable true mean differences for bunch weight per plant for different numbers of treatments tested (5-30), plants per plot (5-40), replications (2-6), and management practices. This table allows researchers to select minimum trial sizes, according to their objectives and available resources.
650 $abananas
650 $acrop management
650 $acropping systems
650 $aexperimental design
650 $afield experimentation
650 $afruit crops
650 $afruits
650 $aintercropping
650 $amathematical models
650 $aresearch
650 $astatistical analysis
653 $aAgroforestry systems
653 $aAssessment
653 $aDevelopment
653 $aMonoculture
653 $aPlot size
653 $aTechniques
653 $aTrials
653 $aTropical fruits
773 $tAgronomy Journal, Madison$gv.53 , n.4, p.279-280, 1961.
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Registro original: |
Embrapa Florestas (CNPF) |
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