생물환경조절학회지 (Journal of Bio-Environment Control)

  • 제12권2호
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  • Pages.72-76
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  • 2003
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  • 1229-4675(pISSN)
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  • 2765-3641(eISSN)
한국생물환경조절학회 (The Korean Society for Bio-Environment Control)
권호 표지

통기성 부직포의 피복방법 및 $\textrm{GA}_3$ 처리가 저온기에 잎상추의 생육 및 수량에 미치는 영향

Effect of Covering Method of Ventilating Non-Woven Fabric and $\textrm{GA}_3$ Treatment on the Growth and Yield of Leaf Lettuce during Low Temperature Season

  • 발행 : 2003.06.01
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초록

동계의 노지 및 무가온 하우스 재배시에 통기성 간이 피복재의 효과적인 보온방법과 GA$_3$ 처리로 일상추의 생육 촉진효과를 구명하기 위하여 공시재료를 청치마상추와 적치마상추로 하였다. 농PO계 필름하우스 내에서 ‘파스라이도’ 피복재를 이용하여 10월 26일부터 처리한 직접피복(1), 11월 5일부터 처리한 직접피복(2) 및 터널피복 후, 수확 일주일 전에 GA$_3$를 식물체에 엽면살포하여 그 효과를 조사하였다. 평균기온과 상대습도는 대체로 직접＋터널피복, 직접피복 및 대조구의 순으로 높았다. 청치마상추와 적치마상추의 생육은 대체로 직접＋터널피복, 직접피복(1), 직접피복(2), 터널피복, 대조구의 순이었고, 또 GA$_3$처리는 생육을 촉진시켰다. 엽록소 함량은 대조구, 터널피복, 직접피복(2), 직접피복(1), 직접＋터널피복의 순으로 높았다 GA$_3$천리에 의해서 엽록소의 함량은 반대로 저하하였다. 청치마상추와 적치마상추의 생체중은 직접＋터널피복, 직접피복(1). 직접피복(2), 터널피복, 대조구의 순이었고 건물중도 같은 경향이었다. GA$_3$처리는 생체중과 건물중을 약간 증가시켰다. 그러나 대조 구간에 비교한 결과 적치마상추의 생체중과 건물중이 청치마상추보다 낮았다

This study was conducted to estimate stimulation of plant growth of green and red leafy lettuces (Lactuca sutiva L. cv. Chungchima and Jugchima) at affected by covering method and time with protected film materials containing concentrated PO film and GA$_3$ foliar spray. Plants were covered with ‘Pasraido’ material from October 26 to November 31 (direct 1), from November 5 to November 31 (direct 2), or with a tunnel, or direct 2＋ tunnel. Mean air temperature and relative humidity under the covering were higher in direct and tunnel, direct and non-covering, in that order. The fresh weight and dry weight of red and green lettuces increased in direct and tunnel followed by direct 1, direct 2, tunnel and the control. GA$_3$ treatment promoted the growth in all covering methods, but decreased the chlorophyll contents. Fresh weight and dry weight were higher in red lettuce than in green lettuce in the control.

키워드

참고문헌

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