Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Affecting Asparagus officinalis Shoot and Root Growth Characteristics with CPPU Foliar Sprays and Soil Drench

CPPU 엽면 살포와 토양관주 처리시 아스파라거스 지상부와 지하부의 생육특성

Ku, Yang-Gyu;Woolley, David J.;Ahn, Sung-Ju;Lee, Jeong-Hyun
구양규;;안성주;이정현

  • Published : 20100400
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Abstract

The effect of foliar spray and soil drench applications of N1-(2-chloro-4-pyridyl)-N3-phenylurea (CPPU) on shoot (fern) numbers, fern height, axillary bud break, root number and bud production were investigated. A soil drench with CPPU stimulated fern production, but applying CPPU (${\geq}$ 10 $mg{\cdot}L^{-1}$) to foliage of 'Jersey Giant' seedlings reduced the numbers of ferns. Since CPPU is poorly transported these results suggest that CPPU may be stimulating the production in the fern of a mobile inhibitor of shoot production. In contrast, CPPU applied directly to the crown buds using a soil drench could act directly in stimulating bud outgrowth, as is typical of cytokinin-like substances. CPPU as a foliar spray or soil drench stimulated the height of initial ferns, but decreased the height of subsequent ferns. All CPPU treatments significantly enhanced axillary bud break of the fern compared to the control. Although CPPU, applied as a soil drench, was effective in promoting fern production, it did not influence root and crown bud numbers.

CPPU 엽면 살포와 토양관주 처리에 따른 아스파라거스의 shoot(fern) 개수, fern 신장, 액아 타파, 뿌리의 수와 버드 생산에 미치는 영향을 조사하였다. CPPU 토양관주 처리는 fern생산을 촉진하였는데, 그러나CPPU 엽면살포(${\geq}$ 10 $mg{\cdot}L^{-1}$)처리에서는 'Jersey Giant'의 fern 개수를 감소시켰다. CPPU호르몬은 식물 체내에서 이동성이 느려 지상부 shoot 생산에 이동되는 억제물질을 감소시켜 아스파라거스fern 생산을 촉진할 것으로 제안된다. 대조적으로 CPPU호르몬을 직접 crown 버드에 토양관주를 처리하면 사이토키닌 호르몬의 전형처럼 버드 생성을 활발히 촉진한다. CPPU호르몬을 엽면시비와 토양관주를 처리하면 초기의 fern 신장은 촉진되지만, CPPU 호르몬 처리 이후의 자라는 fern 신장은 오히려 감소된다. 모든 CPPU 처리는 대조구와 비교해서 액아 타파를 촉진하였다. CPPU 호르몬을 토양관주 처리하면 fern 생산에 효율적일지라도 뿌리의 수나 crown 버드 생산에 영향을 미치지 않았다.

Keywords

References

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