Drip irrigated Barley (Hordeum vulgare L.) in arid regions of South Tunisia: Plant Growth and Yield Parameters

Historically relegated to the status of "poor man's bread" barley is one of widely cultivated crops in arid regions of south Tunisia for its grain and biomass used as an animal feed and other various purposes. Barley is incorporated into many types of home recipes. Harsh climate and frequent droughts are the great challenge for cereals production so farmers must supply irrigation in order to improve yields. Traditional irrigation techniques are widely used despite their low efficiency. Conversion to drip is encouraged by public services as a measure to save water resources, boost yields and as an adaptation measure to climate change that will cause more pressure on available water resources .The present paper presents results for drip irrigated barley in arid climate of South Tunisia. The study was undertaken at research farm of Institute of Arid Regions in Medenine and tried to replicate current farmer's practices with the aim to facilitate their conversion to drip irrigation. For full drip irrigated barley (100% irrigation water requirements), following crop variables were recorded according to standard agronomic procedures as described in Daur et al. (2011): Plant height (m); Ears number by square meter at harvest; Number of grains per ear; 1000 grain weight (g); Biological yield (kg.m-2); Grain yield at harvest (g.m-2). Grain yield was 360.75g m-2 which corresponds to 3.61 ton ha-1and Biological yield was 1.014 kg m-2 for a total water amount of 225 mm. These values far exceed those obtained in rainfed agriculture

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Allen RG, Pereira LS, Raes D, Smith M. 1998. Crop evapotranspiration. Guidelines for Computing Crop Water Requirements, Irrigation and Drainage Paper 56. FAO, Rome, Italy.

Almarshadi MS, Ismail SM. 2014. Barley growth and productivity as affect ted by soil amendments under fully and minimum irrigation conditions in Saudi Arabia. Life Sci J 2014; 11(4):223-230.

Bachta MS. 2011. La céréaliculture en Tunisie Une politique de régulation à repenser. Les notes d'analyse du CIHEAM N 6 4.

Banga Kalala JP, Albouchi A, Bouzaien G, Nasr Z, Tshibangu KWT. 2012. Rendement agronomique du blé et de l'orge dans les parcelles associées des jeunes pacaniers à Sidi Mbarek au nord de la Tunisie. TROPICULTURA, 2012, 30, 2, 72-78.

C.R.E.A.B. Midi-Pyrénées: Résultats de l'essai variétés d'orge d'hiver 2007-2008.

Daur I, Sepetoglu H, Sindel B. 2011. Dynamics of faba bean growth and nutrient uptake and their rrelation with grain yield. Journal of Plant Nutrition. 34: 1360-1371.

Doorenbos J, Pruitt WO. 1977. Crop water requirements: guidelines for predicting crop water requirements. FAO irrigation and drainage paper 24, FAO Rome, United Nations.

FAO. 2002. Déficit irrigation practices. Water report 22.

Khadija K. 2011. Pilotage de l'irrigation à l'eau salée et besoins en eau de l'orge en milieu aride. Mastère Lutte Contre la Désertification et Gestion Durable des Ressources en Milieu Aride. Institut National Agronomique de Tunisie.

Martin L, Gendron A. 2004. Méthodes statistiques appliquées à la psychologie. Traitement des données avec Excel (avec CD- Rom) ISBN: 9782890941465

Nabila S. 2009. Diversité de 13 génotypes d'orge (Hordeum vulgare L.) et de 13 génotypes de blé tendre (Triticum aestivum L.): Etude des caractères de production et d'adaptation. Magister en biologie végétale. Université de Mentouri de Constantine. Faculté de sciences, de la nature et de la vie. Département de biologie et écologie.

Nagaz K, Masmoudi MM, Ben Mechlia N. 2010. Millet Production under Different Irrigation Strategies with Saline Water in Arid Conditions of Tunisia. Res. J.Soil Water Manage., 1(1): 15-20.

Ouji A, Rouaissi et M, Ben Salem M. 2010. Comportement variétal de l'orge (Hordeum vulgare L.) en double exploitation. Annales de l'INRAT, 2010, 83 ,103-114.

Romagny B, Guillaume H. Ben Ouezdou Hédi, Palluault S. 2004. Ressources en eau, usages et concurrences dans la Djeffara tunisienne. Série Usages, appropriation, gestion des écosystèmes. Documents de recherche n° 1. Laboratoire Population - Environnement-Développement, Unité Mixte de Recherche IRD - Université de Provence.

Thabet M. 2008. Etude de l'irrigation goutte à goutte en milieu aride: impacts sur la salinisation du sol et sur une culture de piment (Capsicum Annum L). Thèse de doctorat en sciences agronomiques de l'Institut National Agronomique de Tunisie.114 pages + annexes.

Ünlü M, Kanber R, Şenyigit U, Onaran H, Diker K. 2006. Trickle and sprinklerrrigation of potato (Solanum tuberosum L.) in the Middle Anatolian Region in Turkey.Agri. Water Manage., 79: 43-71.