A foliar spray application of indole-3-butyric acid promotes rooting of herbaceous annual cuttings similarly or better than a basal dip

Kohler, Annika E.; DuRussel, Nathan; López, Roberto G.

doi:10.1016/j.scienta.2022.111298

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…녹지를 이용하더라도 발근율이 매우 낮지만 삽수의 하단 부를 IBA 1,000-4,000mg•L -1 용액에 침지하면 발근율이 향상된다고 하였다 (Gordon, 1992;Curir et al, 1993;Dawson and King, 1994). Lullfitz(2001) (Blythe et al, 2007), 식물에 따라 적정농도가 달라지므로 증식하고자 하는 작물에 적합한 농도를 조사할 필요가 있다 (Kohler et al, 2022). (Fig.…”

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Effect of the K-IBA Foliar Application on the Rooting of Geraldton Waxflower ‘Mars’ and ‘Early Nir’ Semi-hardwood Cuttings

Jung,

Kim,

Yang

et al. 2023

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This study was carried out to improve the rooting percentage and rootstock quality of Chamelaucium uncinatum 'Mars' and 'Early Nir' semi-hardwood cuttings with K-IBA total immersion or as a foliar spray application. In the total immersion case, all cuttings were immersed in K-IBA 500, 1,000, 2,000, and 4,000 mg•L -1 solutions for 30 seconds or for 1-4 minutes, after which they were stuck into the media. The foliar spray was applied with a solution at the same concentration to the extent that the solution dripped down from the leaf surface at one-week intervals over one, two, four, or eight weeks after cutting. Total immersion with the K-IBA 2,000 and 4,000 mg•L -1 solutions for two minutes increased the rooting ratio by more than 40% for waxflower 'Mars' cuttings in May. The K-IBA 500 and 1,000 mg•L -1 foliar spray applications also increased the rooting percentage by more than 50% for cuttings in Septembers. With regard to 'Early Nir' cutting propagation in October, the survival ratio and rooting percentage increased when immersed in the K-IBA solution, showing no adverse effects even with increasing the concentration and immersion time. The rooting percentage exceeded 50% when immersed for two and four minutes at 4,000 mg•L -1 . The K-IBA foliar application also improved the survival percentage and rooting ratio, but the rooting percentage was less than 40% and decreased as the spray time was increased. From the above results, foliar spray drip down with K-IBA 500 and 1,000 mg•L -1 solutions for 'Mars' in September and total immersion in the K-IBA 4,000 mg•L -1 solution for two or four minutes with 'Early Nir' in October can be used to increase the cutting propagation efficiency of semi-hardwood cuttings, respectively.

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