The effect of fertiliser and shading treatments on rooting efficiency in cuttings of the cupressaceae

K A Spanos, A Pirrie, S Woodward

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effects of different fertiliser applications on rooting of cuttings taken from glasshouse-grown stock plants of Cupressus sempervirens, C. torulosa, C. arizonica, and Chamaecyparis lawsoniana was examined.

The response to fertilising of stock plants with macronutrients (NPK) or macronutrients plus microelements varied with species. Stock plant fertilising significantly reduced rooting rates in C. sempervirens cuttings, but significantly increased rooting in C, torulosa, C. arizonica and C, macrocarpa cuttings treated with rooting powder, in comparison to control stock plants treated with tap water. Fertilising of Chamaecyparis lawsoniana stock plants had no effect on rooting of cuttings.

Treatment of stock plants with increasing concentrations of nitrogen fertiliser ((NH4)(2)SO4 in tap water) significantly affected rooting of most tested species. Nitrogen treatments, however, had no significant effect on rooting of C. sempervirens and Chamaecyparis lawsoniana cuttings. In cuttings of C. torulosa, C. arizonica and C. macrocarpa, however, the high nitrogen concentration (800 mg N.l(-1)) significantly reduced rooting rates, whereas the lowest nitrogen concentration (100 mg.l(-1)) induced maximum rooting.

Significant variability was found in rooting abilities of cuttings taken from stock plants of different C. sempervirens seed families. Shading of C. sempervirens stock plants significantly reduced rooting rates in certain families, but had no effect; in other families.

Application of rooting powder (NAA-Captan mixture) to cuttings significantly increased rooting rates, and in Chamaecyparis lawsoniana significantly increased the number of roots per cutting, but had no effect on root length.

Original languageEnglish
Pages (from-to)248-254
Number of pages7
JournalSilvae Genetica
Volume48
Publication statusPublished - 1999

Keywords

  • Cupressus
  • Chamaecyparis
  • nitrogen fertilisers
  • light conditions
  • vegetative propagation
  • cuttings
  • rooting
  • rooting powder
  • VEGETATIVE PROPAGATION
  • SEIRIDIUM-CARDINALE
  • CHAMAECYPARIS-LAWSONIANA
  • SEMPERVIRENS L.
  • MICROPROPAGATION
  • RESISTANCE
  • RESPONSES

Cite this

The effect of fertiliser and shading treatments on rooting efficiency in cuttings of the cupressaceae. / Spanos, K A ; Pirrie, A ; Woodward, S .

In: Silvae Genetica, Vol. 48, 1999, p. 248-254.

Research output: Contribution to journalArticle

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N2 - The effects of different fertiliser applications on rooting of cuttings taken from glasshouse-grown stock plants of Cupressus sempervirens, C. torulosa, C. arizonica, and Chamaecyparis lawsoniana was examined.The response to fertilising of stock plants with macronutrients (NPK) or macronutrients plus microelements varied with species. Stock plant fertilising significantly reduced rooting rates in C. sempervirens cuttings, but significantly increased rooting in C, torulosa, C. arizonica and C, macrocarpa cuttings treated with rooting powder, in comparison to control stock plants treated with tap water. Fertilising of Chamaecyparis lawsoniana stock plants had no effect on rooting of cuttings.Treatment of stock plants with increasing concentrations of nitrogen fertiliser ((NH4)(2)SO4 in tap water) significantly affected rooting of most tested species. Nitrogen treatments, however, had no significant effect on rooting of C. sempervirens and Chamaecyparis lawsoniana cuttings. In cuttings of C. torulosa, C. arizonica and C. macrocarpa, however, the high nitrogen concentration (800 mg N.l(-1)) significantly reduced rooting rates, whereas the lowest nitrogen concentration (100 mg.l(-1)) induced maximum rooting.Significant variability was found in rooting abilities of cuttings taken from stock plants of different C. sempervirens seed families. Shading of C. sempervirens stock plants significantly reduced rooting rates in certain families, but had no effect; in other families.Application of rooting powder (NAA-Captan mixture) to cuttings significantly increased rooting rates, and in Chamaecyparis lawsoniana significantly increased the number of roots per cutting, but had no effect on root length.

AB - The effects of different fertiliser applications on rooting of cuttings taken from glasshouse-grown stock plants of Cupressus sempervirens, C. torulosa, C. arizonica, and Chamaecyparis lawsoniana was examined.The response to fertilising of stock plants with macronutrients (NPK) or macronutrients plus microelements varied with species. Stock plant fertilising significantly reduced rooting rates in C. sempervirens cuttings, but significantly increased rooting in C, torulosa, C. arizonica and C, macrocarpa cuttings treated with rooting powder, in comparison to control stock plants treated with tap water. Fertilising of Chamaecyparis lawsoniana stock plants had no effect on rooting of cuttings.Treatment of stock plants with increasing concentrations of nitrogen fertiliser ((NH4)(2)SO4 in tap water) significantly affected rooting of most tested species. Nitrogen treatments, however, had no significant effect on rooting of C. sempervirens and Chamaecyparis lawsoniana cuttings. In cuttings of C. torulosa, C. arizonica and C. macrocarpa, however, the high nitrogen concentration (800 mg N.l(-1)) significantly reduced rooting rates, whereas the lowest nitrogen concentration (100 mg.l(-1)) induced maximum rooting.Significant variability was found in rooting abilities of cuttings taken from stock plants of different C. sempervirens seed families. Shading of C. sempervirens stock plants significantly reduced rooting rates in certain families, but had no effect; in other families.Application of rooting powder (NAA-Captan mixture) to cuttings significantly increased rooting rates, and in Chamaecyparis lawsoniana significantly increased the number of roots per cutting, but had no effect on root length.

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KW - Chamaecyparis

KW - nitrogen fertilisers

KW - light conditions

KW - vegetative propagation

KW - cuttings

KW - rooting

KW - rooting powder

KW - VEGETATIVE PROPAGATION

KW - SEIRIDIUM-CARDINALE

KW - CHAMAECYPARIS-LAWSONIANA

KW - SEMPERVIRENS L.

KW - MICROPROPAGATION

KW - RESISTANCE

KW - RESPONSES

M3 - Article

VL - 48

SP - 248

EP - 254

JO - Silvae Genetica

JF - Silvae Genetica

SN - 0037-5349

ER -