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Responses of Popcorn to Irrigation Rates and Timing of Irrigation Termination |
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| รหัสดีโอไอ | |
| Creator | Wanchai Thanomusb |
| Title | Responses of Popcorn to Irrigation Rates and Timing of Irrigation Termination |
| Contributor | Sanayh Kraokaw , Sumana Ngampongsai , Wilaiwan Promkum, Jiraluk Phoomthaisong |
| Publisher | Department of Agriculture |
| Publication Year | 2544 |
| Journal Title | Thai Agricultural Research Journal |
| Journal Vol. | 19 |
| Journal No. | 2 |
| Page no. | 157-167 |
| Keyword | popcorn, irrigation rate, irrigation termination, growth stage |
| URL Website | https://at.doa.go.th/journal |
| Website title | Thai Agricultural Research Journal |
| ISSN | 0125-8389 |
| Abstract | Irrigation rates and timing of irrigation termination in relation to crop maturity directly affect yield and costs of popcorn production. Responses of a popcorn variety to 3 irrigation rates (the ratios of irrigation water to evaporation, IW/E 0.5 , 0.7 and 0.9) and 4 irrigation termination (R1 , R3, R4 nd R6) were examined on a clay soil at Chai Nat field Crop Research Centre. The number of irrigation throughout the growing season was between 4-8 with irrigation amounts of 108-315 mm, depending up on irrigation rates and timing of the last irrigation. The responses in growth and yeild o firrigation rates to irrigation termination were similar. Leaf area gave an average yield of 637 kg/rai, which was 6.4 and 17.0% higher than IW/E 0.7 and 0.5, respectively. Irrigation terminated at R4 and r6 stages showed no significant differences in yields, whereas irrigation terminated at R3 and R1 reduced yields up to 7.3 and 17.6% , respectively, compared to R6 termination. reduction in the number of ears harvested, and grain size was the main factors causing lower yields of lower irrigation rates and early irrigation termination. |
