Study on possibility of water convolvulus (Ipomoea aquatica Forsk,) seed production in Phitsanulok
1999
Udomlaksana Muchjajib | Weerapat Grouyrungroj (Rajamangala Institute of Technology. Phitsanulok Campus, Phitsanulok (Thailand))
Study on possibility of water convolvulus seed production in Phitsanulok Province was conducted at Buengpra District, Amphoe Muang during September 1997-February 1998. It was found that seed yield (120 kg/rai) was rather low compared to the average seed yield of the country (175 kg/rai). The quality of seed was acceptable; 96.24 percent of physical purity, 12.14 percent of moisture content and 82.50 percent of germination. The total production cost per rai was 2,390 Baht. The net return per rai was 4,810 Baht when the price of seed was 60 Baht a kilogram.
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