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Effects of Water Deficit on Growth, Yield and Seed Oil Content of Sunflower (Helianthus annuus L.) |
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| รหัสดีโอไอ | |
| Creator | 1. Pawinee Kamwut 2. Nawarat Udomprasert 3. Tosapon Pornprom 4. Pornsiri Leewanich |
| Title | Effects of Water Deficit on Growth, Yield and Seed Oil Content of Sunflower (Helianthus annuus L.) |
| Publisher | Department of Agriculture |
| Publication Year | 2553 |
| Journal Title | Thai Agricultural Research Journal |
| Journal Vol. | 28 |
| Journal No. | 1 |
| Page no. | 75-88 |
| Keyword | ทานตะวัน, การขาดน้ำ, การเจริญเติบโต, ปริมาณน้ำมัน, ปริมาณกรดไขมัน |
| URL Website | http://at.doa.go.th/journal |
| Website title | Thai Agricultural Research Journal |
| ISSN | 0125-8389 |
| Abstract | Studies on the effects of water deficit 0n growth,yield and seed oil content of sunflower, was carried out by using a Stripplot design in RCB with 3 replications, The vertical plot consisted of two two sunflower cultivars: Pacific 33 and Pacific 55, The horizontal plot consisted of three water stress treatments namely control (T1), plants were watered to field capacity throughout the experiment; water stress during flower flower initiation(T2): water was withheld during flower initiation until wilting and plants were then rewatered, and water stress during anthesis (T3) : water was withheld during anthesis until wiltimg and plants were then rewatered, The study was conducted in the experimental field of Agronomy Department. Faculty of Agriculture, Kasetsart University, Kamphaeng Saen campus, Nakhon Pathom province during November 2007 to March 2008. The results indicated that water deficit at anthesis ( T3) caused the greatest reduction in stem diameter of sunflower, However plant height, dry weight accumulation and seed yield were not affected by water deficit, The results also showed that water deficit at both flower initiation (T2) and anthesis (T3) had no effect on seed oil content of sunflowers but altered levels of some fatty acid, especially in Pacific 33 cultivar which had higher oleic acid level under stress conditions. |
