Nayyereh Ghorbani; Esmaeil Chamani; Ali Akbar Shokoohian; Seyyedeh Sanaz Ramezanpour
Abstract
Biochemical diversity is a manifestation of geographical area and environmental change. In the present study, 16 ecotypes of yellow flag species were identified and collected through field studies. The ecotypes were identified and then grouped into three populations based on their geographical locations. ...
Read More
Biochemical diversity is a manifestation of geographical area and environmental change. In the present study, 16 ecotypes of yellow flag species were identified and collected through field studies. The ecotypes were identified and then grouped into three populations based on their geographical locations. Using spectrophotometric methods, eight biochemical properties were measured. These were chlorophyll a, chlorophyll b, total chlorophyll, antioxidant capacity, carotenoids, total phenol, flavonoids, and anthocyanin content. The biochemical traits were analyzed in a completely randomized design in three replications using SAS software and principal component analysis via SPSS software. The analysis of variance showed significant differences between the ecotypes in terms of biochemical traits (p<0.05; p<0.01). Photosyntheti-c pigments occurred maximally in ecotype Q, phenol and flavonoids in ecotype K, antioxidant capacity in ecotype O, and anthocyanin content in ecotype L. The populations were divided into three main groups by cluster analysis. Correlation analysis showed significant, positive correlations between chlorophyll a and total chlorophyll (r = 90%), total chlorophyll and carotenoids (r = 67%), as well as phenol content and flavonoid content (r = 56 %). The results indicated significant bioch-emical diversity in the ecotypes.
Olfa Saddoud Debbabi; Emna Khanfir; Mohamed Ali Dridi; Massaoud Mars M
Abstract
Fig tree (Ficus carica L.) is characterized by a wide genetic diversity in Tunisia although it is considered as a secondary species. In Kerkennah islands, despite several biotic and abiotic stresses, local population has conserved the fig germplasm. This species is very well suited to the harsh environments. ...
Read More
Fig tree (Ficus carica L.) is characterized by a wide genetic diversity in Tunisia although it is considered as a secondary species. In Kerkennah islands, despite several biotic and abiotic stresses, local population has conserved the fig germplasm. This species is very well suited to the harsh environments. In order to enhance on farm conservation of fig genetic resources and to have inventory of related traditional knowledge (TK), a global survey was conducted among a wide range of stakeholders and local governmental agencies in Kerkennah archipelago. For this purpose, prospections were done during two successive years covering the totality of the islands. A total of 9 locations and 26 sub-locations were visited. Twenty four farmers were solicited. Surveys have taken into account sex, age of farmers, predominant agricultural activities of farmers, field area, fig cultivated varieties, land management, traditional knowledge, production and its use, source of incomes and marketing of production. Participatory Four Cell Analysis (FCA) allowed the classification of fig cultivars regarding the threat level of loss and the adequate manner of conservation. Results of this study showed that it is imperative to pay particular attention to threatened and rare cultivars. Hence, the importance to conserve such diversified germplasm. On farm conservation program is a suitable alternative for such region for preservation of traditional knowledge, cultivars rehabilitation and a sustainable agriculture.
