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Development of Lupinus havardii as a cut flower.

Mackay, W. A.; Davis, T. D.; Sankhla, N.; Sankhla, D.; George, S. W.;

Towards the 21st century. Proceedings of the 8th international lupin conference, Asilomar, California, USA, May 11-16 1996. Year: 1999 Pages: 37-41 Ref: 5 ref.

1999

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Development of Lupinus havardii as a cut flower.

L. havardii, commonly known as the Big Bend bluebonnet, is a showy winter annual that produces blue, fragrant racemes 0.5-1.0 m in length. The species is native to a narrow geographical range in southwestern Texas (USA). The L. havardii raceme has considerable potential in the flower industry, because there is a need for high-quality, durable, raceme-type cut flowers. Accordingly, a research project was started in 1990 aimed at evaluating the potential of the species as a cut flower crop. Trials indicated that L. havardii is adaptable to greenhouse culture and that individual plants can produce 15-25 marketable racemes within 4-5 months from sowing. Postharvest vase life of racemes treated with silver thiosulfate (STS), an ethylene antagonist, could be as long as 2 weeks. Postharvest trials indicated that STS-treated racemes are amenable to storage and air shipping. Breeding of this species has aimed at improving uniformity, yield, flower colour and postharvest performance. These efforts have re

sulted in blue, pink and white colour lines. Blue and white cultivars will be released by Texas A & M University within the next year. Overall, L. havardii holds great potential as a cut flower crop.