Influence of cutting position in 1-year-old fig wood on cutting rooting rate and growth
2015
Hirai, T. | Kitaguchi, M. | Kato, S. | Katsura, H.
We investigated the influence of cultivar type and cutting position in 1-year-old dormant fig wood on cutting rooting rate and growth. 1. Among 'Masui Dauphin', 'Banane', 'Bourjassotte Grise', 'Bourjassotte Grise' had the highest rooting rate; the rate was significant higher than that of the cultivar with the lowest rate, namely 'Masui Dauphin'. There are therefore inter-cultivar differences in the rooting rates of cuttings. 2. In the case of 'Bourjassotte Grise', the rooting rate was high regardless of whether we took cuttings from the tip, base, or middle of 1-year-old dormant wood. In contrast, in 'Banane' the rooting rate of cuttings taken from the tip was inferior to that of cuttings taken from the base, and this trend was similar in 'Masui Dauphin'. Therefore, cuttings should be taken from the intermediate or base parts of the 1-year-old dormant wood; cuttings from the tip are inferior in some cultivars. 3. More detailed investigation of the influence of cutting position on rooting and on growth after cutting in 'Masui Dauphin' revealed that cuttings from the tip had the lowest rooting rate and inferior growth. However, rooting rate and growth improved when paraffin tape was wound around the above-ground parts of the cutting. 4. The influences of the diameter, weight, and planting density of the cutting on growth of the young plant were small. 5. The intermediate and base parts of the 1-year-old wood were thus most suitable for taking cuttings. In cultivars such as 'Masui Dauphin', rooting rate depended on cutting position, and cuttings taken from the tip were inferior in terms of rooting rate and growth. However, these parameters could be improved by binding the above-ground parts of the cutting with paraffin tape.
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