Root growth analysis of corn by using rhizotron technique | ????????????????????????????????????????????????????????????????????
2019
Wipawee Juykeawpanao(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Agronomy) | Manika Yamsook(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Agronomy) | Norasate Patyai(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Agronomy) | Nongpat Chaichana(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand)) | Tiwa Pakoktom(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Agronomy)
The objectives of this study were to compare the growth of the root of 5 corn varieties by using Rhizotron technique and to find out the root characteristic which corn can increase growth and yield of corn grown in compact soil of paddy field after rice in a dry season. The experiment was designed in CRD. The treatment were 5 corn verities as A, B, C, D and E. The corn plants were grown in Rhizotron. Plant growth data was measure every 7 days. The root growth was followed by taking root picture from the transparent cross section of Rhizotron every 7 days. Total root length and projected area were analysed by using WinRhizo. The results showed that plant height and stalk diameter showed highest in corn variety B and E, respectively. After analysed the growth of root, 2 characteristics of root growth were found. They were root growth in vertical distribution (A, B and C) and horizontal distribution (D and E). Moreover, Corn E variety had longest root length. The highest of a projected area was found in corn B variety follow by D and E varieties. Corn E variety has high potential to grow in paddy field after rice in dry season
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