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Çѱ¹ÀܵðÇÐȸ / v.20, no.2, 2006³â, pp.213-221
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( Sensor-based Technology for Assessing Drought Stress in Two Warm-Season Turfgrasses )
ÀÌÁØÈñ;;;ÇãÀçÈ£; ÇÔÆò ´ÙÀ̳ʽºÆ¼ C.C.;Ç÷θ®´Ù ´ëÇб³ ȯ°æ¿ø¿¹Çаú;Ç÷θ®´Ù ´ëÇб³ ȯ°æ¿ø¿¹Çаú;ÇÔÆò ´ÙÀ̳ʽºÆ¼ C.C;
 
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º» ¿¬±¸´Â Åä¾ç ¼öºÐÇÔ·®À» Áï½Ã ÆÄ¾ÇÇÒ ¼ö ÀÖ´Â Time Domain Radiometer(TDR)°ú ½Ä¹°ÀÇ ±¤ÇÕ¼º ½Ã ÀÙ¿¡¼­ ¹Ý»çµÇ´Â Reflectance¸¦ ÅëÇÏ¿© ½Ä¹°ÀÇ »óŸ¦ ÆÄ¾ÇÇÒ ¼ö ÀÖ´Â Multi-spectral radiometer(MSR)¸¦ »ç¿ëÇÏ¿© ³­ÁöÇü ÀܵðÀÎ 'Sea Isle 1' Seashore paspalum °ú 'Floratam' St. Augustinegrass¸¦ ´ë»óÀ¸·Î Åä¾ç¼öºÐÇÔ·®°ú Reflectance¿ÍÀÇ »ó°ü°ü°è¸¦ ÆÄ¾ÇÇϰíÀÚ ½ÃÀÛÇÏ¿´´Ù. º» ¿¬±¸¸¦ ÅëÇØ Åä¾ç ¼öºÐÇÔ·®ÀÌ 660, 694 wavelengths¿Í NDVI, LAI, stress index¿¡¼­ ³ôÀº »ó°ü°ü°è¸¦ °¡Áö°í ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. ÀÌ´Â Sensor-based technology°¡ ÀܵðÀÇ ¼öºÐ¿ä±¸ ½ÃÁ¡À» ¹Ì¸® ÆÄ¾ÇÇÒ ¼ö ÀÖ´Â ±â¼úÀÇ ±âÃÊ ÀÚ·á·Î¼­ Ȱ¿ëµÉ ¼ö ÀÖÀ¸¸ç ¿©·¯ ´Ù¸¥ Sensor-based technology¸¦ ÀÌ¿ëÇÑ ¿¬±¸·Î È®´ëµÉ ¼ö ÀÖÀ» °ÍÀÌ´Ù.
This study was designed to determine what sensor-based technologies might reliably and accurately predict irrigation scheduling needs of warm-season turfgrass. 'Floratam' St. Augustinegrass[Stenotaphrum secundatum(Walt.) Kuntze] and 'Sea Isle I' seashore paspalum(Paspalum vaginatum Swartz) were established in tubs in the Envirotron Turfgrass Research Laboratory in Gainesville, FL in the spring of 2002. Each grass was subjected to repeated dry-down cycles where irrigation was withheld. Sensor-based data were collected and these evaluations were used to determine if irrigation scheduling could be determined based on plant response during dry-down. Results indicated that reflectance indices($P{le}0.001$) and soil moisture($P{le}0.0001$) throughout the dry-down cycle can predict the need for irrigation scheduling as turf quality declined below acceptable levels.
 
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°ÇÁ¶½ºÆ®·¹½º;³­ÁöÇüÀܵð;Åä¾ç¼öºÐ;drought stress;multi-spectral reflectance;soil moisture;warm-season turfgrass;
 
Çѱ¹ÀܵðÇÐȸÁö / v.20, no.2, 2006³â, pp.213-221
Çѱ¹ÀܵðÇÐȸ
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200617317767401)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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