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. ...
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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.
Rohollah Abdoli Nejad; Akhtar Shekafandeh
Abstract
A major portion of the Iranian fig (Ficus carica) industry is located in high-salinity regions, and salinity is an important limiting factor in the production of this fruit. The present study was conducted to investigate the changes of leaf antioxidant-enzyme activity, proline and total protein content ...
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A major portion of the Iranian fig (Ficus carica) industry is located in high-salinity regions, and salinity is an important limiting factor in the production of this fruit. The present study was conducted to investigate the changes of leaf antioxidant-enzyme activity, proline and total protein content in two fig cultivars with two leaf shapes: ‘Anjir Sabz’ with lobate and palmate leaves, and ‘Shah Anjir’ with lobate and palmate leaves, under salt stress condition. The seedlings were exposed to different NaCl concentrations so that six different electrical conductivity levels of 0.6, 3, 6, 9, 12 and 15 dSm-1 were achieved in pots. This experiment was performed as factorial based 6×2(2) in a completely randomized design with four replications and two seedlings in each replicate. The results showed that as the soil salinity increased, the proline and protein contents of both cultivars were increased. However, palmate leaves of both cultivars accumulated more proline and protein than those of their lobate leaves. The activities of antioxidant enzymes increased in seedlings of both cultivars; however, superoxide desmutase and catalase showed more activity in palmate leaves than lobate leaves. There were no significant differences between the two leaf shapes in relation to peroxidase. The results seem to suggest that seedlings with palmate leaves are more salt tolerant than seedlings with lobate leaves.
