| Co-Investigator(Kenkyū-buntansha) |
NA-NAKON Malee Faculty of Agriculute, Kasesart University, Assistant Prof., 農学部, 助教授
WARGWATTANA チャラムチャイ カセサート大学, 農学部, 特別講師
SURAWATTANAN スイーソム カセサート大学, 農学部, 講師
CRINAWARG Sa カセサート大学, 農学部, 助教授
SUWANKETRIKA ランシット カセサート大学, 農学部, 教授
SUWANAMEK Umporn Faculty of Agriculute, Kasesart University, Associate Prof., 農学部, 準教授
李 度鎮 農業研究センター, 耕地利用部, 主任研究官 (50272159)
沈 利星 筑波大学, 応用生物化学系, 講師 (30272157)
MATSUMOTO Hirosi Institute of Applied Biochemistry, University of Tsukuba, Associate Prof., 応用生物化学系, 助教授 (10199888)
KOBAYASHI Katsuichiro Institute of Applied Biochemistry, University of Tsukuba, Associate Prof., 応用生物化学系, 助教授 (40087606)
WONGWATTANA Chalermchai Faculty of Agriculute, Kasesart University, Special lecturer
SURAWATTANANON Srisorn Faculty of Agriculute, Kasesart University, Lecturer
CHINAWONG Sombat Faculty of Agriculute, Kasesart University, Assistant Prof.
SUWANKETNKOM Rungsit Faculty of Agriculute, Kasesart University, Professor
SHM Ie-sung Institute of Applied Biochemistry, University of Tsukuba, Associate Prof.
LEE Do-jin Research Center, Paddy Weed Lab., National Agric., Seniorresearcher
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| Research Abstract |
Survey of weeds in the salinized areas in Northeast Thailand was conducted with cooperation of Kasesart University for the purpose of collecting the useful genetic resources to improve the vegetation in the problem soils of the tropical monsoon areas which have the dry and rainy seasons in a year. Salt-tolerant weeds were utilized to develop the propagatinal technique and to select the fortified plants in salt tolerance. Furthermore, the collected plants were studied for clarifying the mechanism of salt tolerance and salt damage biochemically and evaluating the effectiveness in greening the salt-affected soil.
1.Survey of weeds tolerant to salinity : Weeds and soil characteristics of 17 areas of 7 provinces (Nakhonrachasima, Mahasarakam, Khon Kaen, Skonnakhon, Udonthani, Surin, and Srisaket) were surveyed. Totally, 33 families and 132 species were identified and 27 families and 79 species of them were remained alive at high salinity soils more than 2mS/cm in EC value.
2.Selection of salt-tolerant plants : Some of the calli induced from vetivar Vetivara zizani coides Nash) plant showed high salt tolerance even under 1.5% salt concentration. They were regenerated successfully and tested in the salinity soil to conform the maintenance of salt tolerance.
3.Mechanism of salt tolerance : Comparison between salt-tolerant and salt-sensitive biotypes of Imperata sylindrica and indica and japonica rice varieties, respectively, were conducted to clarify the biochemical mechanism by investigating the absorption and disrtibution of salt, compatible solutes, and scavenging system of activated oxygen.
4.Adaptibility of salt-tolerant weeds to salinity soil : The collected weeds tolerant to salt stress were tested in the salt-affected field of Kasesart University and data are collecting to evaluate the effectiveness of herbaceous weeds in restoring vegetation and influence on the micro-envirnment including soil characteristics.
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