WATER MANAGEMENT FOR SESAME UNDER DIFFERENT SOWING DATES | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 1, Volume 3, Issue 3, March 2012, Pages 389-400 PDF (496.79 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2012.53866 | ||
| Author | ||
| F. R. M. Farrag | ||
| Soils, Water and Environment Res. Inst., A.R.C., Giza, Egypt | ||
| Abstract | ||
| The present investigation was conducted at Hawaret El-Maktaa village, El- Fayoum District, Fayoum governorate, Egypt, during 2010 and 2011 seasons to study the combined effect of sowing dates i.e. S1: May 2nd, S2: May 16th and S3: May 31st and scheduling irrigation treatments, i.e. irrigation at I1: 0.7 cumulative pan evaporation (C.P.E.), I2: 0.9 and I3:1.1 C.P.E. on seed yield, yield components, seed oil content and some water relations of sesame crop (Shandaweel -3 cv.).The split-plot design with four replications was applied, where sowing dates were allocated to the main plots and the split ones were occupied with irrigation scheduling treatments. The main obtained results were as follows:- Highly significant increases in plant height(179.22 180.50 cm), capsule number/plant (156.42, 165.70), seed weight/plant (19.88, 20.21 g) and seed yield (612.80, 605.89 kg fed-1) in 2010 and 2011 seasons, respectively, resulted from planting on 2nd May and irrigation at 1.1 C.P.E. interaction. The increases in1000-seed weight were not significant in the two seasons, while seed oil content % exhibited similar trend in the first season only. Seasonal consumptive use (ETC) averaged 51.05 and 49.83 cm in 2010 and 2011 seasons, respectively. Planting sesame on May 2nd and irrigation at 1.1 C.P.E. gave the highest ETC values i.e. 55.35 and 54.46 cm in the two successive seasons. Nevertheless, the lowest ETC values i.e. 47.37 and 45.72 cm were detected from planting on May 31st and irrigation at 0.7 C.P.E. in both seasons, respectively. The crop coefficient (KC) average, under interaction of 1st sowing date and irrigation at 1.1 C.P.E., were 0.45, 0.55, 0.85 and 0.64 for May, June, July and August, respectively. The highest water use efficiency values i.e. 0.264 and 0.265 kg seedsm-3 consumed water were obtained from planting on May 2nd and irrigation at 1.1 C.P.E. interaction in 2010 and 2011 seasons, respectively. However, it is advisable to irrigate the early planted sesame crop according to 0.9 CPE treatment to obtain acceptable figure for water use efficiency and to save irrigation water as well. | ||
| Keywords | ||
| Sesame yield; yield components; sowing date; Irrigation scheduling; sesame crop -water relationships | ||
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