Physiological responses of banana (<i>Musa</i>AAA; Cavendish sub-group) in the subtropics. III. Gas exchange, growth analysis and source-sink interaction over a complete crop cycle

Eckstein, Karl; Robinson, John C.; Davie, S. J.

doi:10.1080/14620316.1995.11515286

Cited by 28 publications

(10 citation statements)

References 7 publications

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“…At 1118 and 1518 • C days after emergence, the leaves are the dominant sink. Leaf dominance in the early stages of banana growth was also reported by Eckstein et al (1995) for Musa AAA; Cavendish subgroup. Leaves intercept radiation to produce assimilates needed for rapid growth during the first phase of vegetative growth.…”

Section: Dry Matter Partitioningsupporting

confidence: 70%

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: Dry Matter Partitioningsupporting

confidence: 70%

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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“…On the other hand, a compensatory phenomenon reducing the impact of defoliation might also be involved, as the development of a bunch results from the distribution of dry matter not only from the leaves but also from other parts of the plant. In this way, the rachis and pseudostem may partially compensate for late-occurring defoliation (Eckstein et al, 1995). It has also been shown that an increased photosynthetic capacity of the remaining leaves may partially compensate for losses caused by defoliation (Robinson et al, 1992).…”

Section: Discussionmentioning

confidence: 94%

Hand position on the bunch and source–sink ratio influence the banana fruit susceptibility to crown rot disease

Lassois

Bastiaanse

Chillet

et al. 2010

Annals of Applied Biology

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Keywords AbstractThe postharvest development of crown rot of bananas depends notably on the fruit susceptibility to this disease at harvest. It has been shown that fruit susceptibility to crown rot is variable and it was suggested that this depends on environmental preharvest factors. However, little is known about the preharvest factors influencing this susceptibility. The aim of this work was to evaluate the extent to which fruit filling characteristics during growth and the fruit development stage influence the banana susceptibility to crown rot. This involved evaluating the influence of (a) the fruit position at different levels of the banana bunch (hands) and (b) changing the source-sink ratio (So-Si ratio), on the fruit susceptibility to crown rot. The fruit susceptibility was determined by measuring the internal necrotic surface (INS) after artificial inoculation of Colletotrichum musae. A linear correlation (r = −0.95) was found between the hand position on the bunch and the INS. The So-Si ratio was found to influence the pomological characteristics of the fruits and their susceptibility to crown rot. Fruits of bunches from which six hands were removed (two hands remaining on the bunch) proved to be significantly less susceptible to crown rot (INS = 138.3 mm 2 ) than those from bunches with eight hands (INS = 237.9 mm 2 ). The banana susceptibility to crown rot is thus likely to be influenced by the fruit development stage and filling characteristics. The present results highlight the importance of standardising hand sampling on a bunch when testing fruit susceptibility to crown rot. They also show that hand removal in the field has advantages in the context of integrated pest management, making it possible to reduce fruit susceptibility to crown rot while increasing fruit size.

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“…número de hojas funcionales, mayor número de hojas sanas. Además, los diferentes porcentajes de sombrío afectaron el ambiente, en cuanto a disminución de la temperatura y aumento de la humedad relativa, siendo la planta más eficiente en los procesos de fotosíntesis, respiración y transporte de fotoasimilados, lo cual, afecta la economía del carbono del patógeno y aumenta la relación fuente-vertedero de la planta, que favorece el llenado de racimos (Eckstein et al 1995;Israeli et al 1995;Hidalgo et al 2006; Refaie et al 2012).…”

Section: Materiales Y Métodosunclassified

Efecto del sombrío sobre la sigatoka negra (Mycosphaerella fijiensis Morelet) en cultivo de plátano cv hartón (Musa AAB Simmonds)

V.¹,

A.²,

A.³

2016

Rev. U.D.C.A Act. & Div. Cient.

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Physiological responses of banana (MusaAAA; Cavendish sub-group) in the subtropics. III. Gas exchange, growth analysis and source-sink interaction over a complete crop cycle

Cited by 28 publications

References 7 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

Hand position on the bunch and source–sink ratio influence the banana fruit susceptibility to crown rot disease

Efecto del sombrío sobre la sigatoka negra (Mycosphaerella fijiensis Morelet) en cultivo de plátano cv hartón (Musa AAB Simmonds)

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