Effects of plant density and irrigation techniques on yield and yield components in sweet corn
2007
Kashiani, P. | Saleh, G.B., Universiti Putra Malaysia, 43400 Serdang, Selangor, (Malaysia). Dept. of Crop Science
A field study was conducted to determine the effects of plant density and alternative irrigation techniques on performance of yield and its components in sweet corn, in Iran. The study was executed in strip plots in a randomized complete block design with four replications. Three irrigation techniques were applied i.e. A1=conventional furrow irrigation (every row) throughout the growth period, A2=alternate furrow irrigation, A3=alternate furrow irrigation throughout the growth period. The plant density factors were 7, 8 and plants/square meter. When the irrigation techniques were solely considered, effects were significant on ear diameter, seed depth and ear fresh yield. Interaction effects of irrigation technique and plant density were found to be significant for ear diameter, seed depth, number of row on ear, number of seed on ear, cob dry weight, seed dry yield, ear dry yield and ear fresh yield. A2 and A3, of each respective planting density gave similar yields compared to A1, while significantly reducing the water utilization. Mean dehusked fresh ear yields obtained from the fields for A1, A2 and A3 were 3460 kg/ha, 3794 kg/ha and 3484 kg/ha, respectively. It is therefore suggested that A3 irrigation technique is practiced in sweet corn growing areas with similar rainfall pattern.
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