The influence of preplanting dips and postplanting temperatures on root growth and development of nonprecooled tulips, daffodils and hyacinths

Jennings, Nancy T.; Hertogh, A. A. De

doi:10.1016/0304-4238(77)90033-4

Cited by 12 publications

(4 citation statements)

References 4 publications

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“…Foliage senescence was delayed for precooled Tulipa bulbs. Precooling may have improved root development and prolonged foliage life (Jennings and De Hertogh, 1977;Le Nard and De Hertogh, 1993).…”

Section: Discussionmentioning

confidence: 99%

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Precooling, Planting Depth, and Shade Affect Cut Flower Quality and Perennialization of Field-grown Spring Bulbs

Cavins¹,

Dole²

2002

HortSci

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Narcissus L. `Music Hall', N. `Tahiti', Tulipa L. `Couleur Cardinal', and T. `White Emperor' bulbs were precooled at 5 °C for 0 or 5 weeks and planted 15, 30, or 45 cm deep (from bulb base) into raised ground beds under 0%, 30%, or 60% shade. Plant growth was monitored for two consecutive years after planting. Precooling reduced the percentage of T. `White Emperor' that flowered but did not affect flowering percentage of the other cultivars. Precooling delayed anthesis in one or both years for all cultivars. The greatest percentage of bulbs flowered when planted 15 cm deep and the 45-cm planting depth reduced flowering percentage. Increasing planting depth delayed anthesis for all cultivars. Increasing shade increased stem lengths in one or both years for all cultivars, but did not influence flowering percentage. Perennialization was low for all cultivars regardless of treatment. Cultivar differences in perennialization occurred; in year 2 up to 30% of N. `Tahiti' bulbs flowered vs. 32% for `Music Hall' and up to 30% of T. `White Emperor' bulbs flowered vs. only 22% of `Couleur Cardinal'.

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Section: Discussionmentioning

confidence: 99%

“…Precooling promotes rapid growth after planting and earlier shoot elongation (Le Nard and De Hertogh, 1993). Precooling also improves root development at temperatures as high as 30 °C compared to the optimum rooting temperature of 13 to 17 °C (Jennings and De Hertogh, 1977;Le Nard and De Hertogh, 1993).…”

mentioning

confidence: 99%

Precooling, Planting Depth, and Shade Affect Cut Flower Quality and Perennialization of Field-grown Spring Bulbs

Cavins¹,

Dole²

2002

HortSci

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“…Thus, all possible measures must be taken to prevent root rot diseases from becoming serious problems. Jennings and De Hertogh (1977) reported that a benomyl-etridiazole (ethazol) dip and a preplant water dip stimulated root growth of Thlipa for two weeks after planting. Hyacinthus and Narcissus did not respond to these treatments.…”

Section: G Diseasesmentioning

confidence: 99%

Root Physiology of Ornamental Flowering Bulbs

Kawa

Hertogh

1992

Horticultural Reviews

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“…The bulbs were divided into 3 groups of 240 each. On October 24, Group I bulbs were detunicated (10), treated with a 12 hr bulb-dip of ancymidol concentrations of 0, 2, 4, 8, or 10 ppm, and then planted. On the same date Group II bulbs were detunicated then potted.…”

mentioning

confidence: 99%

Effects of Ancymidol Soil Drench and Time of Application of Bulb-dips on ‘Paul Richter’ Tulips1

Kincaid

McDaniel

1979

horts

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Soil drench applications ancymidal (α-cyclopropyl-α-)p-methoxyphenol)-5-pyrimidinemethanol were more effective than bulb dips in retarding scape length and dry weight of Tulipa gesneriana L. Soil drench at 0.67 mg ai/pot was as effective as 3.33 mg in retarding scape growth. Ancymidol applications caused no change in leaf length or width, flower size or color, the date at which the tulips reached the salable stage, or the shelf-life of the flowers.

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The influence of preplanting dips and postplanting temperatures on root growth and development of nonprecooled tulips, daffodils and hyacinths

Cited by 12 publications

References 4 publications

Precooling, Planting Depth, and Shade Affect Cut Flower Quality and Perennialization of Field-grown Spring Bulbs

Precooling, Planting Depth, and Shade Affect Cut Flower Quality and Perennialization of Field-grown Spring Bulbs

Root Physiology of Ornamental Flowering Bulbs

Effects of Ancymidol Soil Drench and Time of Application of Bulb-dips on ‘Paul Richter’ Tulips1

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