De beteekenis van klimaat- en transport-invloeden voor de gebruikswaarde van tuinbouwproducten, in het bijzonder van bloembollen

Summary

The demand for all products depends on the satisfaction the ultimate consumer gets from the product.

A description is given of the investigations in the Laboratory for Bulb-researches on the influences of different temperatures, humidities on the flowering results of flower-bulbs.

The problems of the culture of sound bulbs are just even inseparably connected with influences during storage and shipping on the flowering capacities of the bulbs, as the methods of curing diseased bulbs, and for this reason it is impossible to draw a line between the treatment of healthy and diseased bulbs.

The methods of curing diseased bulbs may not unfavorably influence the flowering results and the preparing methods for early forcing may not neglect the susceptibility of the bulbs of parasitical as well as of physiological diseases.

By the investigations has been proven that the outward appearance of the bulbs is not a reliable test for their flowering capacity. Bulbs during shipment outwardly damaged by mites or secundary fungi can give entirely satisfactory flowering results and also a bulb that looks allright from the outside may be worthless due to damage by heating in transit. The results of damage by heating in transit are compared with bulbs experimentally exposed to high temperatures and the damage largely depends on the periodicity of the development of the bulbs and on the treatment of the bulbs before the dosage of the heating-treatments.

It has been possible to make the bulbs more resistant to unfavorable shipping conditions by a special pre-treatment.

Often failure of flowering due to mistakes made by the forcers are wrongly imputed to poor flowering capacity of the bulbs.