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Mangrove rice biodiversity valorization in Guinea Bissau. A bottom-up approach

Published online by Cambridge University Press:  21 October 2021

Franco Tesio Open the ORCID record for Franco Tesio [Opens in a new window] ,
Filippo Camerini ,
Giovanni Maucieri ,
Carlo Bertini  and
Streng Cerise
Franco Tesio*
Affiliation:
ValOryza, C.so Gastaldi 55, 13100, Vercelli, Italy
Filippo Camerini
Affiliation:
ONG LVIA, Via Monsignor Peano 8b, 12100, Cuneo, Italy
Giovanni Maucieri
Affiliation:
ONG LVIA, Via Monsignor Peano 8b, 12100, Cuneo, Italy
Carlo Bertini
Affiliation:
ONG LVIA, Via Monsignor Peano 8b, 12100, Cuneo, Italy
Streng Cerise
Affiliation:
ONG LVIA, Via Monsignor Peano 8b, 12100, Cuneo, Italy
*
*Corresponding author. Email: franco.tesio@valoryza.it
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Summary

Rice is the staple crop of Guinea Bissau, and its production system is based on human labor with very limited possibility of mechanization, particularly in the Mangrove ecosystem. Due to this and to the low possibilities of controlling environment parameters, such as water level and availability, the genetic resistance to extreme abiotic factors was identified as a key point for increasing yields quantity and stability. Among the ample genetic material available in the country, no purification activities were carried out in the past decades. This led to the cultivation of mixtures or ecotypes and not to uniform varieties, with consequent issue related to cultivation and milling. On 103 samples collected, only on about 50% of ecotypes, the purification was carried out as the remaining half was too much variable. The purification ended with less than 20% of material considered stable and uniform varieties. Moreover, the program adopted a bottom-up approach for collection and variety conservation to drive the program and improve the genetic material.

Keywords

Genetic improvementrice biodiversitymangrove ecosystemfarm participation
Type
Research Article
Information
Experimental Agriculture , Volume 57 , Issue 4 , August 2021 , pp. 244 - 254
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Copyright
© The Author(s), 2021. Published by Cambridge University Press

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