Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by T. Changdee
Total Records ( 3 ) for T. Changdee
  A. Polthanee and T. Changdee
  A greenhouse experiment was conducted in Department of Plant Science and Agricultural Resources, Faculty of Agriculture, Khon Kaen University in 2005. The objective of this study were to investigate the effects of adventitious root removing and timing of fertilizer application on growth, yield and nutrient uptake of kenaf (Hibiscus cannabinus L.). The results showed that removing adventitious roots from the plant significantly reduce in growth, yield and nutrient uptake of kenaf in comparison with no adventitious root removing. Splitting chemical fertilizer application as basal at planting, combined with top dressing at 60 days after planting during adventitious root forming in flooded soil did not show any significant difference in fiber yield in comparison with once application as basal at planting. A field experiment was conducted in Ban Muong village, Muang district in Khon Kaen province in 2005-2006. The objective of this study was to investigate the effects of timing of fertilizer application on growth, yield and nutrient uptake of kenaf (Hibiscus cannabinus L.). The results showed that splitting chemical fertilizer application as basal at planting, combined with top dressing at 60 days after planting significant increase in fiber yield as compared to once basal application at planting or once top dressing at 60 days after planting. The new finding indicate that the response of adaptive adventitious roots (water roots) of economic kenaf crops to flooding stress mainly affects nutrient uptake, similar to the aquatic roots of wetland plants.
  A. Polthanee , T. Changdee , J. Abe and S. Morita
  A pot experiment was performed to examine the effects of flooding on growth, yield and aerenchyma development in adventitious roots of four kenaf (Hibiscus cannabinus L.) cultivars. Three flooding treatments consisting of early season flooding (30 days after planting), mid-season flooding (60 days after planting) and late season flooding (90 days after planting), as well as non-flooding control were used in the present study. The results show that soil flooding significantly increased plant height by 108 and 107% over control in early flooding and mid-flooding, respectively. Early flooding significant decreased the number of leaves and leaf area of whole plant and core dry weights by 15, 19 and 20% over non-flooding control, respectively. Soil flooding did not show any significant effect on plant height and number of leaf among cultivars, but did for leaf area, leaf dry weight and core dry weight. Early season and mid-season flooding significant decreased root dry weight in soil by 71 and 49% over non-flooded control, respectively. No adventitious roots developed in non-flooded control. Adventitious roots located in water above soil surface had dry weight of 18, 11 and 6 g plant-1 in early season, mid season and late season flooding, respectively. No significant difference in root dry weight located in soil and root dry weight located in water above soil surface were observed among cultivars. Aerenchyma formed in adventitious roots when the plant was subjected to flooding and was more developed in roots located in water above the soil surface as compared to roots located in soil. All the cultivars formed aerenchyma in their adventitious roots with variation among cultivars. Soil flooding significantly decreased fiber yield by 13% in non-flooded control in early season flooding treatments. However, mid-season and late season flooding did not show any significant difference on fiber yield in comparison with control. The cultivars was not significantly difference on fiber yield in the present experiment.
  T. Changdee , A. Polthanee , C. Akkasaeng and S. Morita
  The objective of this study was to investigate the effect of different waterlogging regimes on growth, yield and roots development in three fiber crops. Three fiber crops kenaf (Hibiscus cannabinus L.), roselle (Hibiscus sabdariffa L.) and jute (Corchorus olitorius L.) were subjected to waterlogging for 45, 60, 75, 90 and 105 days, as well as a well-drained subject (control). The waterlogging regimes had a significant effect on plant height, stem diameter, leaf area, biomass production, root growth and aerenchyma tissue formation. The crops subjected to waterlogging for longer periods were more affected in their growth characteristics: H. cannabinus had a higher plant height, stem diameter, leaf area, biomass production and root growth less than H. sabdariffa and C. olitorius. Aerenchyma tissue developed in adventitious roots of three fiber crops species. The fiber crops subjected to waterlogging regimes decreased fiber yield by 11.9-51.2% compared to the control. H. cannabinus produced the highest fiber yield after 45 days of waterlogging duration. This results is due to the higher growth and roots development of H. cannabinus than the other two fiber crops.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility