|Author:||Rashidi, M. ; Seyfi, K.|
|Book Group Author:||NA|
The effects of water stress on yield and yield components of cantaloupe (Cucumis melo cv. Varamin Samsoori) were studied in 2004-05 in Iran. The site was located at 873 m altitude, 35°N latitude and 52°E longitude, in arid climate and a clay loam soil in the centre of Iran. Four irrigation treatments based on 10, 30, 50 and 70% available water deficit (AWD) were applied in both the growing seasons. Irrigation treatments were designed to induce a range of water stress between emergence and harvest. Number of fruits per plant, fruit weight and fruit thickness were measured and consequently crop yield and water use efficiency (WUE) were determined. Results indicated that water stress significantly (P≤0.01) affected the number of fruits per plant and fruit weight, but there was no significant variation in fruit thickness among the irrigation treatments. Number of fruits per plant and fruit weight was highest at 30% and lowest for the treatment irrigated based at 70% AWD. Furthermore, water stress significantly affected yield of cantaloupe in the order of 10% > 30% > 50% > 70% AWD. The highest crop yield (29.10 t ha-1) was obtained for the treatment applied based on 10% AWD. The yield from other treatments varied between 26.62 and 18.78 t ha-1 and found to be lowest (17.26 t ha-1) for the treatment irrigated based on 70% AWD. The WUE of the treatments irrigated based on 10 and 30% AWD were markedly higher than the other treatments. The highest WUE (0.88 t ha-1 cm-1) was obtained at 30% and lowest (0.52 t ha-1 cm-1) at 70% AWD. Among the treatments, 30% AWD was more effective in improving WUE.
|Pages:||271 - 273|
|Journal:||International Journal of Agriculture and Biology|
crop quality, crop yield, fruits, irrigation, melons, plantwater relations, water stress, water use, water use efficiency, yieldcomponents, Iran, Cucumis melo, Cucumis, Cucurbitaceae, Violales,dicotyledons, angiosperms, Spermatophyta, plants, eukaryotes, West Asia,Asia, Middle East, Developing Countries, Threshold Countries, watering,Horticultural Crops (FF003) (New March 2000), Plant Water Relations(FF062), Plant Production (FF100), Soil Water Management (Irrigation andDrainage) (JJ800) (Revised June 2002) [formerly Soil Water Management]