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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.17, no.3, 2008³â, pp.231-237
¸ÅÇâ' µþ±âÀÇ Ä®½· ¿µ¾çÁø´ÜÀ» À§ÇÑ °áÇÌÁõ»ó ¹× ½Ä¹°Ã¼ ³» ÇѰè³óµµ
( Characterization of Symptom and Determination of Tissue Critical Concentration for Diagnostic Criteria in 'Maehyang' Strawberry (Fragaria $ imes$ ananassa Duch.) as Influenced by Calcium Concentrations in the Fertigation Solution )
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±¹³»À°¼º µþ±â ½ÅǰÁ¾ÀÎ '¸ÅÇâ'À» Ca ³óµµ¸¦ Á¶ÀýÇÑ °üºñ¿ë¾×À¸·Î Àç¹èÇϸ鼭 °áÇÌÁõ»óÀÇ Æ¯Â¡°ú °áÇÌÁõ»óÀ» À¯¹ßÇÏ´Â °Ç¹°Áß ¹× »ýüÁó¾×³» ÇѰè³óµµ¸¦ ±¸¸íÇϱâ À§ÇÏ¿© º» ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. Ca °áÇÌÁõ»óÀº ½Å¿±¿¡¼­ ¹ß»ýÇÏ¿´°í, ½Å¿±ÀÇ ¿±¸Æ ºÎºÐÀÌ °¥º¯ÇÏ´Â Áõ»ó°ú ÇÔ²² ½Å¿±ÀÌ ±âÇüÈ­µÇ¸é¼­ ¼±´ÜºÎ°¡ ±«»çÇÏ´Â Áõ»óÀ̾ú´Ù. Á¤½Ä ÈÄ 120ÀÏ¿¡ Áö»óºÎÀÇ »ýÀ°À» Á¶»çÇÑ °á°ú ¿±¼ö, ¿±Àå, ¿±º´Àå, »ýüÁß ¹× °Ç¹°ÁßÀº 4.5mM°ú 6mM ½Ãºñ±¸¿¡¼­ »ýÀ°ÀÌ ¿ì¼öÇÏ¿´°í, 3mM ÀÌÇϳª 9mMÀÇ Ä®½· ³óµµ¿¡¼­ »ýÀå·®ÀÌ Àû¾î 2Â÷°î¼±È¸±Í°¡ ¼º¸³ÇÏ¿´°í °æÇâÀÌ ¶Ñ·ÇÇÏ¿´´Ù. ½Ä¹°Ã¼´ç °Ç¹°Áß 4.9g¿¡¼­ 2Â÷ °î¼±È¸±ÍÀÇ Á¤Á¡ÀÌ Çü¼ºµÇ¾úÀ¸¸ç(y=2.4026+1.0209x-$0.0985x^2$, $R^2=0.3546^{***}$), ÃÖ´ë »ýÀå·®ÀÇ 90% ÀÌ»ó »ýÀå·®À» ÃÖÀú ÇѰèÁ¡À¸·Î ¼³Á¤ÇÏ¸é ½Ä¹°Ã¼´ç ¾à 4.4gÀÌ»óÀÇ °Ç¹°ÁßÀ» »ý»êÇØ¾ß ÇÏ¸ç °Ç¹°Áß¿¡ ±âÃÊÇÑ CaÇÔ·®ÀÌ $1.6sim2.25%$ÀÇ ¹üÀ§¿¡ Æ÷ÇÔ µÇµµ·Ï ½Ãºñ·®À» Á¶ÀýÇØ¾ß ÇÒ °ÍÀ¸·Î ÆÇ´ÜÇÏ¿´´Ù. »ýüÁßµµ Ca ½Ãºñ³óµµ¿¡ ´ëÇÏ¿© 3Â÷ °î¼±È¸±ÍÀûÀÎ ¹ÝÀÀÀ» º¸¿´À¸¸ç(y=9.273+4.882x-$0.4245x^2$, $R^2=0.4935^{***}$), ½Ä¹°Ã¼´ç 239¿¡¼­ Á¤Á¡ÀÌ Çü¼ºµÇ¾ú´Ù. ÃÖ´ë »ýÀå·®ÀÇ 90% ÀÌ»óÀ» È®º¸ÇÏ·Á¸é ¿±º´ ÃßÃâ¾×ÀÇ Ca ³óµµ°¡ $63sim79mg{cdot}kg^{-1}$ÀÇ ¹üÀ§¿¡ Æ÷ÇԵǵµ·Ï Ca ½Ãºñ³óµµ¸¦ Á¶ÀýÇØ¾ß ÇÑ´Ù°í ÆÇ´ÜÇÏ¿´´Ù.
Objective of this research was to investigate the effect of calcium concentrations in the fertilizer solution on growth and development of Ca deficiency in 'Maehyang' strawberry (Fragaria $ imes$ ananassa Duch.). The margins of the youngest leaves were scorched and they developed a cupped shape as they were expanded in Ca deficient plants. The vein area of the youngest leaves became brown when the deficiency became severe. The quadratic responses were observed in dry weight production to elevated Ca concentrations in fertilizer solutions with the highest growth in 4.5 mM treatment. The regression equation was y=2.4026+1.0209x-$0.098x^2$ $(R^2=0.3546^{***})$. However, tissue Ca contents increased lineally as the Ca concentrations in fertilizer solutions were elevated (y=1.2108+0.1333x, $R^2=0.9189^{***}$). In changes of the fresh weight and Ca concentrations in petiole sap, fresh weight production showed quadratic responses to elevated Ca concentrations in fertilizer solution, but Ca concentration increased lineally. The equations in changes of fresh weight and Ca concentrations were y=9.273+4.882x-$0.4245x^2$ $(R^2=0.4935^{***})$ and y=52.311+3.2917x $(R^2=0.6918^{***})$, respectively. When the concentration of calcium at which plant growth was retarded by 10% is regarded as critical concentration level, the calcium contents based on dry weight of above ground plant tissue and in petiole sap should be in the range between 1.6 to 2.25% and 63 to $79mg{cdot}kg^{-1}$, respectively.
 
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°áÇÌÁõ»ó;µþ±â;½Ä¹°Ã¼ ¹«±â¿ø¼Ò ÇÔ·®;Ä®½· ³óµµ;calcium;deficiency symptom;petiole sap;strawberry;tissue content;
 
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.17, no.3, 2008³â, pp.231-237
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200835054212766)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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