Planting date and defoliation influence the time of harvest of bananas

Turner, D. W.; Hunt, N. A.

doi:10.1016/0304-4238(87)90090-2

Cited by 19 publications

(14 citation statements)

References 5 publications

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“…More importantly there was variation in the GDD between planting dates within locations where the crops planted earliest in the year had the least GDD. From these data we can say that it is likely that a factor other than temperature is influencing bunch initiation in bananas, a similar conclusion reached by Turner and Hunt (1987) for cv. 'Williams' in a sub-tropical environment.…”

Section: Reproductive Systemsupporting

confidence: 60%

“…This can be demonstrated in planting date experiments where, for each planting date the GDD from planting to bunch emergence is expected to be the same, other things being equal. However, Turner and Hunt (1987) pointed out that for banana cv. 'Williams' (AAA, Cavendish subgroup) growing in the subtropics, the GDD was not the same for three different planting dates suggesting some other factor, perhaps photoperiod, was involved in bunch initiation.…”

Section: Reproductive Systemmentioning

confidence: 99%

“…The larger the difference between the GDD sums of the early and later planted crops the greater the sensitivity to photoperiod. We used this method of analysis for crops of bananas planted at different times in Ivory Coast, a tropical location (Lat 5ºN) (Lassoudière 1978a,b), and in New South Wales, Australia, a sub-tropical location (Lat 29ºS) (Turner and Hunt, 1987) (Figure 3).…”

Section: Reproductive Systemmentioning

confidence: 99%

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Environmental physiology of the bananas (Musa spp.)

Turner

Fortescue

Thomas

2007

Braz. J. Plant Physiol.

116

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The bananas are thought to be particularly sensitive to changes in the environment. This review considers some historical and recent investigations into the response of the leaf, root and reproductive system to the environment. Monteith's analysis of the response of plants to intercepted radiation is appropriate for analyzing the productivity of bananas and plantains. The banana is sensitive to soil water deficits, and expanding tissues such as emerging leaves and growing fruit are among the first to be affected. As soil begins to dry, stomata close and leaves remain highly hydrated, probably through root pressure. Productivity is affected because of the early closure of stomata. We find the common belief that bananas use large amounts of water does not have a strong physiological basis. Improvements in water-use efficiency in irrigated plantations could come from a closer match between plant water use and the amount of water applied. We examine recent data on water-use efficiency of different banana cultivars and propose that agronomists, physiologists and breeders could quantify the amount of water available in each rain-fed environment and work towards directing more of that water through the plant. The banana is day neutral for floral induction, but photoperiods of less than 12 h are associated with a slowing in the rate of bunch initiation that is independent of temperature expressed as growing degree days. This may contribute to seasonal variations in banana flowering, even in more tropical environments with moderate temperatures. Key words: crop yield, leaf system, light, photoperiod, photosynthesis, reproductive system, root system, temperature, water supply Ecofisiologia de bananeiras (Musa spp.): Bananeiras são particularmente sensíveis a mudanças no ambiente. Nesta revisão, exploram-se alguns estudos clássicos e recentes sobre as respostas ao ambiente da folha, raiz e sistema reprodutivo dessa espécie. A análise de Monteith sobre as respostas das plantas à radiação interceptada mostrou-se apropriada para a análise da produtividade de bananeiras. Bananeiras são sensíveis ao déficit hídrico do solo, particularmente tecidos em expansão tais como as folhas em formação e os frutos em crescimento. Na medida em que o solo começa a secar, os estômatos se fecham e as folhas se mantêm altamente hidratadas, provavelmente devido à pressão radicular. A produtividade é afetada, em função do fechamento estomático. A crença geral de que bananeiras usam grandes quantidades de água não tem forte embasamento fisiológico. O aumento na eficiência do uso da água em cultivos irrigados pode advir de aumentos na densidade de plantio e quantidade de água aplicada. Examinam-se dados recentes sobre a eficiência do uso da água em diferentes cultivares de banana e propõe-se que agrônomos, fisiologistas e melhoristas possam quantificar a quantidade de água disponível nos vários ambientes de sequeiro, de modo a maximizar a eficiência do uso da água pela planta. A bananeira é uma espécie neutra para a indução floral, porém fotoperíod...

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Section: Reproductive Systemsupporting

confidence: 60%

Section: Reproductive Systemmentioning

confidence: 99%

Section: Reproductive Systemmentioning

confidence: 99%

See 1 more Smart Citation

Environmental physiology of the bananas (Musa spp.)

Turner

Fortescue

Thomas

2007

Braz. J. Plant Physiol.

116

View full text Add to dashboard Cite

show abstract

“…Because fruit growth is temperature-dependent, the FHP depends on the average daily temperature (Jullien, 2000). Under tropical conditions, this period varies from 60 to 85 days, whereas under subtropical conditions it can reach six months depending on the season (Turner and Hunt, 1987).…”

Section: Introductionmentioning

confidence: 99%

“…This is the case when there is a marked decrease in the number of leaves at flowering (Daniells et al, 1987;Turner and Hunt, 1987;Chillet et al, 2006), and also when fruit pulp filling occurs in the presence of water stress (Chillet et al, 2006). Nevertheless, it has also been shown that when bananas are harvested under these conditions at a predetermined physiological age (900 dd thermal sum), these cropping stresses have no impact on their GL (Chillet et al, 2006).…”

Section: Introductionmentioning

confidence: 99%