Abstract
A farmers’ participatory survey was carried out in five different agroecosystems of Bangladesh to obtain information on the genetic diversity, consumers preferences for fruit quality and to assess the data to select potentially superior genotypes of jackfruit (Artocarpus heterophyllus Lam.). A wide variation in morpho-agronomic characters was identified from farmers’ information and also from laboratory analyses. Multivariate analysis of the data produced four discrete groups, represented by trees from different agroecological zones and soil types. Characteristics such as weight; length; diameter; girth of fruits; number of bulbs per fruit; percentage of pulp; percentage of rachis (core); and percentage of rind (peel) were found to be poorly correlated with environmental factors indicating that these characters may be genetically controlled. Other characters, such as seed weight, bulb weight, and brix (%) were found to be affected by environmental and genetic factors. Isozyme analysis of 50 accessions confirmed results obtained from field studies of morpho-agronomic characters. Ten potentially superior types were selected on the basis of yield, fruiting season, flesh colour, texture, sweetness, and farmers’ preference for recommendation to producers.
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Acknowledgements
We thank the Department for International Development (DFID), UK for funding this research (R6389). However, DFID cannot accept responsibility for information provided or views expressed. We are also indebted to the Bangladesh Agricultural Research Institute BARI) for providing support for field study. We also thank Professor Trevor Williams for his useful comments on the manuscript
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Azad, A.K., Jones, J.G. & Haq, N. Assessing morphological and isozyme variation of jackfruit (Artocarpus heterophyllus Lam.) in Bangladesh. Agroforest Syst 71, 109–125 (2007). https://doi.org/10.1007/s10457-007-9039-8
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DOI: https://doi.org/10.1007/s10457-007-9039-8