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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.11, no.2, 2002³â, pp.88-92
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( Effect of Covering Methods with Ventilating Non-Woven Fabric on the Growth and Yield in Leaf Lettuce during Low Temperature Season ) |
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| The study was conducted to estimate stimulation of plant growth of blue and red leaf lettuce (Lactuca sativa L.) as affected by covering methods with vinyl materials containing concentrated PO film. Plants were grown in direct, direct and tunnel, and tunnel covering with 'Pasraido materials' from October 13 to 31. With the covering mean air temperature, soil temperature, leaf temperature and relative humidity remarkedly increased. Higher temperature was observed in the order of direct and tunnel, direct, tunnel covering and the control. Photosynthetic photon flux (PPF, $mu$mol m$^{-2}$ . s$^{-1}$ ) was observed in reverse order of temperature. Concentration of $CO_2$ was higher during night than during day under the light. Accumulation of highest $CO_2$ at night was obtained from direct coverings followed by direct and tunnel, tunnel covering and the control. Plant height, leaf number and leaf area of blue and red lettuces were stimulated by direct covering. However, there was no significant difference. |
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| °£ÀÌ ÇǺ¹Àç;Áö¿Â;½Àµµ;½Ä¹°»ýÀ°;covering materials;soil temperature;relative humidity;plant growth; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.11, no.2, 2002³â, pp.88-92
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921033418)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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