August A. De Hertogh

Effects of N-P-K deficiency and temperature regime on the growth and development of Lilium longiflorum 'Nellie White' during bulb production under phytotron conditions

Scientia Horticulturae, 116(4), 430–436.

Growth and development of Lilium longiflorum 'Nellie White' during bulb production under controlled environments - I. Effects of constant, variable and greenhouse day/night temperature regimes on scale and stem bulblets

SCIENTIA HORTICULTURAE, 112(1), 89–94.

Growth and development of Lilium longiflorum 'Nellie White' during bulb production under controlled environments - II. Effects of shifting day/night temperature regimes on scale bulblets

SCIENTIA HORTICULTURAE, 112(1), 95–98.

The effects of precooling temperatures and durations on forcing of Lilium longiflorum, 'Nellie White'

Proceedings of the Eighth International Symposium on Flowerbulbs.

Influence of photoperiod and day/night temperatures on flowering of Amaryllis (Hippeastrum) cv. apple blossom

XXV INTERNATIONAL HORTICULTURAL CONGRESS, PROCEEDINGS - PT 5, pp. 129–134.

Influence of bulb packing systems on forcing of Dutch-grown Hippeastrum (Amaryllis) as flowering potted plants in North America

HortTechnology, 8(2), 175–179.

Basic forcing requirements for Israeli-grown Ornithogalum dubium

FLOWER BULBS - SEVENTH INTERNATIONAL SYMPOSIUM, VOLS 1 AND 2, pp. 227–232.

Basic forcing requirements for Israeli-grown Ornithogalum dubium

Acta Horticulturae, (430), 227.

Technologies for forcing flower bulbs

In A. H. H. H. Lilien-Kipnis & A. Borochov (Eds.), Seventh International Symposium on Flower Bulbs: March 10-16, 1996, Herzliya, Israel (Acta horticulturae; no. 430) (pp. 175–182). Wageningen, Netherlands: ISHS Ornamental Plant Section, International Working Group on Flower Bulbs.

Technologies for forcing flower bulbs

Acta Horticulturae, (430), 175.

Marketing and research requirements for Lilium in North America

Acta Horticulturae, (414), 17.

Marketing opportunities for ornamental geophytes

Acta Horticulturae, (325), 319.

Planting medium effects on forced Swaziland- and Dutch-grown Hippeastrum hybrids

HortScience, 26(9), 1168.

Forcing Dutch-grown freesias as potted plants in the U.S. and Canada

Acta Horticulturae, (266), 115.

Perspectives on future marketing, research and educational programs for flower bulbs

Acta Horticulturae, (266), 43.

Forcing of selected ornamental Oxalis spp. as potted plants

Acta Horticulturae, (205), 213.

Commercial forcing and marketing requirements for flower-bulbs in the U.S. and Canada

Acta Horticulturae, (177), 267.

The tulip: Botany, usage, growth and development

Horticultural Reviews, 5, 45.

Bulbous plants

In Introduction to floriculture (p. 215). New York: Academic Press.

Internodal growth of the tulip during the greenhouse phase of standard forcing

Acta Horticulturae, 157.

Response variation of tulip cultivars to exogenous ethylene

Acta Horticulturae, 205.