Field Performance of Banana Micropropagules and Somaclones

Vuylsteke, D

doi:10.1007/978-94-015-9125-6_12

Cited by 17 publications

(7 citation statements)

References 31 publications

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“…Field trials, carried out in Kenya and elsewhere, confirm that TC bananas have significantly higher yields than sucker-propagated bananas under favourable conditions and with high input regimes (Robinson et al, 1993;Wambugu and Kiome, 2001). This is in line with observations from commercial banana plantations in Latin America and South Africa, where TC technology has already been used for much longer (Vuylsteke, 1998).…”

Section: Introductionsupporting

confidence: 89%

“…As mentioned, TC bananas require changes in traditional crop management practices, and they are also more sensitive to the implementation and timing of certain maintenance operations (Vuylsteke, 1998). More experienced farmers seem to have an advantage in this respect.…”

Section: Outcome Equations: Determinants Of Yieldmentioning

confidence: 99%

“…Tissue culture is an alternative form of plant propagation using in-vitro techniques in the laboratory. This results in pathogen-free plantlets, which have to be hardened before they can be transplanted into the field (Vuylsteke, 1998). TC plantlets are not resistant to pests and diseases, however, so they can be infested at a later stage (Dubois et al, 2006).…”

Section: Banana and Tc Technology In Kenyamentioning

confidence: 99%

“…1 The difference for old TC plantations is insignificant. With optimal input regimes, TC yield advantages can be maintained also in the medium and long run, but such optimal conditions are not always found in smallholder environments (Vuylsteke, 1998). Table 2 shows that average input use is very low.…”

Section: Yields and Input Use: Descriptive Analysismentioning

confidence: 99%

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Yield Effects of Tissue Culture Bananas in Kenya: Accounting for Selection Bias and the Role of Complementary Inputs

Kabunga¹,

Dubois²,

Qaim³

2012

J Agricultural Economics

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Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in AbstractWe analyze yield effects of tissue culture (TC) banana technology in the Kenyan small farm sector, using recent survey data and an endogenous switching regression approach. TC banana plantlets, which are free from pests and diseases, have been introduced in East Africa since the late-1990s. While field experiments show significant yield advantages over traditional banana suckers, a rigorous assessment of impacts in farmers' fields is still outstanding. A comparison of mean yield levels between TC adopters and non-adopters in our sample shows no significant difference. However, we find a negative selection bias, indicating that farmers with lower than average yields are more likely to adopt TC. Controlling for this bias results in a positive and significant TC net yield gain of 7%. We also find that TC technology is more knowledgeintensive and more responsive to irrigation than traditional bananas. Simulations show that improving access to irrigation could lift TC productivity gains to above 20%. The analytical approach developed and applied here may also be useful for the evaluation of other knowledgeintensive package technologies and innovations in perennial crops. comparison of mean yield levels between TC adopters and non-adopters in our sample shows no significant difference. However, we find a negative selection bias, indicating that farmers with lower than average yields are more likely to adopt TC. Controlling for this bias results in a positive and significant TC net yield gain of 7%. We also find that TC technology is more knowledge-intensive and more responsive to irrigation than traditional bananas. Simulationsshow that improving access to irrigation could lift TC productivity gains to above 20%. The analytical approach developed and applied here may also be useful for the evaluation of other knowledge-intensive package technologies and innovations in perennial crops.

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Section: Introductionsupporting

confidence: 89%

Section: Outcome Equations: Determinants Of Yieldmentioning

confidence: 99%

Section: Banana and Tc Technology In Kenyamentioning

confidence: 99%

Section: Yields and Input Use: Descriptive Analysismentioning

confidence: 99%

See 2 more Smart Citations

Yield Effects of Tissue Culture Bananas in Kenya: Accounting for Selection Bias and the Role of Complementary Inputs

Kabunga¹,

Dubois²,

Qaim³

2012

J Agricultural Economics

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“…This genetic instability may be a risk associated with the application of in vitro culture techniques for germplasm handling and storage. Conversely, somaclonal variation may provide another source of novel and useful variability (Vuylsteke, 1998), which can be used in genetic improvement of banana (Sahijram et al, 2003). Although somaclonal variation is undesirable in the context of micropropagation as most of the somaclonal variants recovered through shoot tip culture exhibit naturally occurring variation or defective phenotypes (Smith, 1988;Vuylsteke et al, 1991).…”

Section: Resultsmentioning

confidence: 97%

Genetic stability of three economically important micropropagated banana (Musa spp.) cultivars of lower Indo-Gangetic plains, as assessed by RAPD and ISSR markers

Ray

Dutta

Saha

et al. 2006

Plant Cell Tiss Organ Cult

120

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An efficient micropropagation protocol produced large number of plants of the three elite banana (Musa spp.) cultivars Robusta (AAA), Giant Governor (AAA) and Martaman (AAB) from shoot tip meristem. The genetic relationships and fidelity among the cultivars and micropropagated plants as assessed by random amplified polymorphic DNA (RAPD) and inter-simple sequence repeat (ISSR) markers, revealed three somaclonal variants from Robusta and three from Giant Governor. A total of 5330 RAPD and 2741 ISSR fragments were generated with 21 RAPD and 12 ISSR primers in micropropagated plants. The percentage of polymorphic loci by RAPD and ISSR were found to be 1.75, 5.08 in Robusta and 0.83, 5.0 in Giant Governor respectively. Among the two marker systems used, ISSR fingerprinting detected more polymorphism than RAPD in Robusta and Giant Governor with most of the primers showing similar fingerprinting profile, whereas Martaman revealed complete genetic stability.

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Dedication: Dirk R. Vuylsteke:MusaScientist and Humanitarian

Ortíz

2001

Plant Breeding Reviews

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Field Performance of Banana Micropropagules and Somaclones

Cited by 17 publications

References 31 publications

Yield Effects of Tissue Culture Bananas in Kenya: Accounting for Selection Bias and the Role of Complementary Inputs

Yield Effects of Tissue Culture Bananas in Kenya: Accounting for Selection Bias and the Role of Complementary Inputs

Genetic stability of three economically important micropropagated banana (Musa spp.) cultivars of lower Indo-Gangetic plains, as assessed by RAPD and ISSR markers

Dedication: Dirk R. Vuylsteke:MusaScientist and Humanitarian

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