EFFECT OF DEFICIT IRRIGATION ON THE PRODUCTIVITY AND CHARACTERISTICS OF TOMATO | ||
| Misr Journal of Agricultural Engineering | ||
| Article 8, Volume 30, Issue 2, April 2013, Pages 403-424 PDF (860.86 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2013.102037 | ||
| Authors | ||
| Ahmed. M. Hassan; Mohamed E. Abuarab | ||
| Assist. Prof., Ag. Eng. Dept., Fac. of Ag., Cairo Univ., Egypt. | ||
| Abstract | ||
| In order to assess the effect of water irrigation deficit during season on yield and mechanical damage of processing tomato, an open field experiment was carried out in two seasons 2010/2011 – 2011/2012. Four irrigation treatments were studied: (ET1: 1 time potential crop evapotranspiration (ETc), ET2: 0.9 ETc, ET3: 0.8 ETc and 0.7 ETc, ET4). The study investigated the yield and mechanical damage in packing cage under four levels of water requirements. Numerous mechanical impacts on fruit occurred with resulting mechanical damages of 15.9, 9.9, 7.1, and 9.5% for treatments ET1, ET2, ET3, and ET4, respectively. Total productions of tomato were 30.77, 29.50, 28.88 and 25.54 ton/fed, but net productions of tomato were 25.88, 26.58, 26.83 and 23.12 ton/fed for treatments ET1, ET2, ET3 and ET4, respectively. The bruised productions of tomatoes were 4.89, 2.92, 2.05 and 2.43 ton/fed for treatments ET1, ET2, ET3 and ET4, respectively. The net profit values for treatments ET1, ET2, ET3 and ET4 were 68990.7, 68841.5, 68644.2, and 59804.6 LE/fed, respectively. The amounts of water saved from ET2 and ET3 were 163.5 and 327 mm, respectively. The amount of water saved can be used to provide other areas to increase the production and thereby increase the water use efficiency. | ||
| Keywords | ||
| Mechanical damage; physical properties; mechanical properties; yield; tomato; deficit irrigation | ||
| References | ||
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