5 P-04         Aeginetia L. (Orobanchaceae) ,- . Ecology, distribution and life cycle of the genus Aeginetia L. (Orobanchaceae) in Thailand

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ABSTRACT Ecology, distribution and life cycle of Dok din genus Aeginetia L. were studied by surveying from the reported sources in Thailand and explants of every developmental stages were collected. Specimens of the host plants also were collected for species identification. The result revealed that A. indica L. was found in tropical rain forest, dry evergreen forest, bamboo forest, dipterocarp forest and occationally might be found on roadside in limestone areas at 0S1,800 m above sea level. Whilst A. pedunculata Wall. was found in grassland at 50S1,000 m above sea level. Both species bloom in rainy season during July to October. A. indica A. pedunculata คลังความรู้ดิจิทัล distributes มหาวิทยาลัยเกษตรศาสตร์in all parts of the country, whereas was found in northern, central, western and west part of north-eastern regions. The life cycle of both species are similar, starting from preconditioning of seed, attachment of seed on the host root, germinates and penetrates a haustorium to connect the host vascular tissue, development of a tubercle, growth of shoot, flowering and seed setting. The ripening fruit dehisces and disperses numerous seeds onto the soil. Keywords: Dok din, Aeginetia , ecology, distribution, life cycle *Corresponding author: [email protected] 1X 
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 q 10900 1Department of Botany, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand 2X  OL $ *  '

 q 10900 2Department of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand 1
 

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A B Figure 1 A. indica (A) and A. pedunculata (B) in natural habitat.

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A B Figure 2 Distribution of A. indica (A) and A. pedunculata (B) in Thailand.

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