The Influence of Banana (Cv. Williams) Plant Density and Canopy Characteristics on Ratoon Cycle Interval and Yield

Robinson, John C.; Nel, D. J.

doi:10.17660/actahortic.1986.175.32

Cited by 10 publications

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“…However, the number of measurements largely depends on the LAI. In banana ratoon crops in other parts of the world, LAI varies from 2 to 6 depending on the variety (Stover & Simmonds, 1987), season (Turner, 1972), plantation density (Robinson & Nel, 1986) and vigour. Radiation interception is higher in the morning and afternoons because of the large zenith angles (Fig.…”

Section: Radiation Measurementmentioning

confidence: 99%

“…We noted low LAI in our trials. In banana ratoon crops in other parts of the world, LAI varies from 2 to 6 depending on the variety (Stover & Simmonds, 1987), season (Turner, 1972), plantation density (Robinson & Nel, 1986) and vigour. Murekezi (2005) reported a low FPARint value of 0.30 for cultivar Mbwazirume (Musa AAA-EAHB) at Kawanda at solar noon under optimal fertilisation rates at density (1111 plants ha −1 ).…”

Section: Radiation Measurementmentioning

confidence: 99%

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Allometric growth relationships of East Africa highland bananas (Musa AAA‐EAHB) cv. Kisansa and Mbwazirume

Nyombi

Asten

Leffelaar

et al. 2009

Annals of Applied Biology

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Highland bananas are an important staple food in East Africa, but there is little information on their physiology and growth patterns. This makes it difficult to identify opportunities for yield improvement. We studied allometric relationships by evaluating different phenological stages of highland banana growth for use in growth assessment, understanding banana crop physiology and yield prediction. Pared corms of uniform size (cv. Kisansa) were planted in a pest-free field in Kawanda (central Uganda), supplied with fertilizers and irrigated during dry periods. In addition, tissue-cultured plants (cv. Kisansa) were planted in an adjacent field and in Ntungamo (southwest Uganda), with various nutrient addition treatments (of N, P, K, Mg, S, Zn, B and Mo). Plant height, girth at base, number of functional leaves and phenological stages were monitored monthly. Destructive sampling allowed derivation of allometric relationships to describe leaf area and biomass distribution in plants throughout the growth cycle. Individual leaf area was estimated as LA (m 2 ) = length (m) × maximum lamina width (m) × 0.68. Total plant leaf area (TLA) was estimated as the product of the measured middle leaf area (MLA) and the number of functional leaves. MLA was estimated as MLA (m 2 ) = −0.404 + 0.381 height (m) + 0.411 girth (m). A light extinction coefficient (k = 0.7) was estimated from photosynthetically active radiation measurements in a 1.0 m grid over the entire day. The dominant dry matter (DM) sinks changed from leaves at 1118 • C days (47% of DM) and 1518 • C days (46% of DM), to the stem at 2125 • C days (43% of DM) and 3383 • C days (58% of DM), and finally to the bunch at harvest (4326 • C days) with 53% of DM. The allometric relationship between aboveground biomass (AGB in kg DM) and girth (cm) during the vegetative phase followed a power function, AGB = 0.0001 (girth) 2.35 (R 2 = 0.99), but followed exponential functions at flowering, AGB = 0.325 e 0.036(girth) (R 2 = 0.79) and at harvest, AGB = 0.069 e 0.068(girth) (R 2 = 0.96). Girth at flowering was a good parameter for predicting yields with R 2 = 0.7 (cv. Mbwazirume) and R 2 = 0.57 (cv. Kisansa) obtained between actual and predicted bunch weights. This article shows that allometric relationship can be derived and used to assess biomass production and for developing banana growth models, which can help breeders and agronomists to further exploit the crop's potential.

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Section: Radiation Measurementmentioning

confidence: 99%

Section: Radiation Measurementmentioning

confidence: 99%

Allometric growth relationships of East Africa highland bananas (Musa AAA‐EAHB) cv. Kisansa and Mbwazirume

Nyombi

Asten

Leffelaar

et al. 2009

Annals of Applied Biology

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“…Este maior intervalo para o ciclo da bananeira deve-se, segundo Robinson & Nel (1986) e Israeli et al (1995), ao maior sombreamento no interior do bananal, o que provoca atraso e desuniformidade no desenvolvimento dos rebentos, e retarda a emissão da inflorescência.…”

Section: Introductionunclassified

“…Tem sido verificado que o aumento da densidade eleva a produção por hectare, em razão do grande número de cachos colhidos (Gomes et al, 1984;Daniells et al, 1985;Robinson & Nel, 1986;Lichtemberg et al, 1988Lichtemberg et al, , 1997. Entretanto, considerando que a bananeira não apresenta ciclo anual definido, a produtividade, medida em t ha -1 ano -1 , é progressivamente reduzida com o incremento da densidade e com a evolução dos ciclos (Daniells et al, 1985;Robinson & Nel, 1988, 1989Robinson, 1995;Lichtemberg et al, 1998).…”

Section: Introductionunclassified

“…Normalmente, o aumento da densidade reduz a massa do cacho, principalmente após o primeiro ciclo (Mattos et al, 1970;Santos, 1977;Obiefuna et al, 1982;Chundawat et al, 1983;Gomes et al, 1984;Chattopadhyay et al, 1985;Daniells et al, 1985;Robinson & Nel, 1986;Lichtemberg et al, 1998). Similarmente, o número de pencas e frutos por cacho é menor nas maiores densidades (Mattos et al, 1970;Obiefuna et al, 1982;Lichtemberg et al, 1990).…”

Section: Introductionunclassified

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Produção da bananeira 'Nanicão' em diferentes densidades de plantas e sistemas de espaçamento

Filho

Kluge

2001

Pesq. agropec. bras.

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Resumo -O objetivo do presente trabalho foi verificar o efeito de diferentes densidades de plantio e sistemas de espaçamento sobre a produção da bananeira 'Nanicão', avaliando-se os primeiros quatro ciclos. Quatro densidades (3.333, 2.222, 1.666 e 1.333 plantas ha -1 ) e dois sistemas de espaçamento (retângulo e triângulo) foram testados para as condições de Piracicaba, SP. O aumento da densidade de 1.333 para 3.333 plantas ha -1 diminuiu a massa do cacho em 15% a 20%, em decorrência do menor número de frutos por cacho, massa e tamanho do fruto. A produção foi sempre maior com o aumento da densidade, porém não ocorreu o mesmo quanto à produtividade. Até o terceiro ciclo, a produtividade das plantas no tratamento de maior densidade superou a das demais. No quarto ciclo, não houve diferença de produtividade entre as plantas, nas densidades testadas, em razão do aumento na duração do ciclo de produção do plantio mais denso. Comparado com o retângulo, o sistema de espaçamento em triângulo promoveu maior massa do cacho no primeiro ciclo e produtividade levemente superior ao longo dos quatro ciclos.Termos para indexação: Musa, espaçamento, produção, frutas, dimensão, peso. Yield of 'nanicão' banana at different plant densities and spacing systemsAbstract -The objective of this research was to study the effect of different planting densities and spacing systems on the yield of the 'Nanicão' banana, evaluating the first four cycles. Four density (3,333; 2,222; 1,666 and 1,333 plants ha -1 ) and two spacing systems (rectangle and triangle) were tested for the conditions of Piracicaba, SP, Brazil. The increase of the density of 1,333 to 3,333 plants ha -1 decreased bunch weight in 15% to 20%, due to reduction in number of fruit by bunch and fruit size. The yield was always higher as the density increased; however, there was not the same behavior for the productivity. Until the third cycle, the highest plant density overcame the productivity of the others. In the fourth cycle there was no difference in productivity among the densities, due to the increase in the duration of crop cycle in the highest density. The spacing system in triangle promoted higher bunch weight in the first cycle and productivity slightly higher along the cycles if compared with rectangle system. Index terms: Musa, spacing, production, fruits, dimension, weight.No Estado de São Paulo, a bananicultura do planalto vem ganhando força, aliando-se ao grande volume de produção de bananas provenientes do Vale do Ribeira, no litoral. O espaçamento ideal de plantio para a bananeira é dependente de vários fatores, como porte da cultivar, fertilidade do solo, seleção de seguidores (rebentos), nível de tecnologia aplicada, controle de plantas daninhas, velocidade do vento, topografia, condições de mercado, longevidade do bananal, destino das frutas e outros (Simmonds, 1982;Lichtemberg, 1984;Stover & Simmonds, 1987;Soto Ballestero et al., 1992). Além disto, a resposta das plantas às diferentes populações depende das condi- IntroduçãoA bananicultura encontr...

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The influence of planting date, sucker selection and density on yield and crop-timing of bananas (cultivar ‘Williams’) in the Eastern Transvaal

Robinson¹,

Nel²

1986

Scientia Horticulturae

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The Influence of Banana (Cv. Williams) Plant Density and Canopy Characteristics on Ratoon Cycle Interval and Yield

Cited by 10 publications

References 0 publications

Allometric growth relationships of East Africa highland bananas (Musa AAA‐EAHB) cv. Kisansa and Mbwazirume

Allometric growth relationships of East Africa highland bananas (Musa AAA‐EAHB) cv. Kisansa and Mbwazirume

Produção da bananeira 'Nanicão' em diferentes densidades de plantas e sistemas de espaçamento

The influence of planting date, sucker selection and density on yield and crop-timing of bananas (cultivar ‘Williams’) in the Eastern Transvaal

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