COMMERCIAL STORAGE OF FRUITS AND VEGETABLES 



35 



TURNIPS 



(Temperature, 32° F.; relative humidity, 90 to 95 percent) 



Turnips require the same storage conditions as carrots. They can 

 be expected to keep for 2 to 4 months. 



FROZEN VEGETABLES 



For treatment of frozen vegetables see p. 22. 



CUT FLOWERS, FLORISTS' GREENS, RHIZOMES, TUBERS, CORMS, 



AND BULBS 



By T. M. Whiteman, assistant horticulturist 



The recommended temperature, relative humidity, and approxi- 

 mate length of storage period for the commercial storage of cut 

 flowers, florists' greens, rhizomes, tubers, corms, and bulbs are given 

 in table 6. Detailed descriptions of these requirements are given 

 in the text following. 



Table 6. — Recommended temperature and approximate length of storage period 

 for cut flowers, florists' greens, rhizomes, tubers, corms, and, bulbs l 



Commodity 



Cut flowers: 2 



Babysbreath 



Bouvardia 



Butterflybush 



Calendula 



Calla 



Candytuft 



Carnation 



China-aster 



Chrysanthemum . 



Clarkia 



Columbine 



Cornflower- 



Crocus 



Dahlia 



Daisy, English... 

 Delphinium: 



Hardy lark- 

 spur. 



Annual lark- 

 spur. 



Feverfew 



Forget - me - not, 

 true. 



Foxglove 



Freesia 



Gaillardia 



Gardenia 



Gladiolus 



Heath 



Hyacinth 



Iris 



Laceflower 



Lily: 



Easter 



Goldband 



Speciosum 



Lily-of-the-valley. 



Lupine 



Narcissus 



Orchid, cattleya.. 

 Peony: 



Tight buds... 



Loose buds... 



Phlox 



Poinsettia 



Tem- 

 pera- 

 ture 



(°F.) 



40 

 40 

 40 

 40 

 40 

 40 

 40 

 40 

 35 

 40 

 40 

 40 

 32-36 

 40 

 40 



40 



40 

 40 



40 



32-36 



40 



45-50 



35 



40 



32-36 



40 



40 



35 

 35 

 35 

 40 

 40 

 32-36 

 45-50 



Approximate length 

 of storage period 



3 to 4 days. 

 7 to 10 days. 

 3 to 4 days. 

 3 to 6 days. 

 10 days. 

 3 to 6 days. 



1 week. 



7 to 10 days. 



2 weeks. 



3 to 6 days. 

 3 to 4 days. 

 3 to 6 days. 



2 weeks. 



7 to 10 days. 



3 to 6 days. 



Do. 



3 to 4 days. 



3 to 6 days. 

 3 to 4 days. 



Do. 



2 weeks. 



3 to 6 days. 



1 week. 



2 weeks. 



7 to 10 days. 



1 week. 



7 to 10 days. 



3 to 6 days. 



1 month. 

 Do. 

 Do. 



1 week. 



3 to 6 days. 



2 weeks. 

 1 week. 



3 to 4 weeks. 

 10 to 14 days. 

 3 to 4 days. 



Do. 



Commodity 



Cut flowers — Contd. 



Primrose 



Rose 



Snapdragon 



Snowdrop 



Squill 



Statice 



Stevia 



Stock, common... 



Strawflower 



Sweet pea 



Tulip 



Violet 



Florists' greens: 2 

 Ferns: 



Common 

 wood. 



Dagger 



Asparagus 



Galax 



Holly 



Laurel, mountain. 

 Leucothoe, droop- 

 ing. 



Lycopodium 



Rhizomes, tubers, 



corms, and bulbs: 3 



Begonia, tuber. _. 



Caladium 



Calla 



Canna 



Crocus 



Dahlia 



Freesia 



Gladiolus 



Hyacinth 



Lily-of-the-valley. 

 Lily: 



Easter 



Regal. 



Narcissus 



Snowdrop 



Squill 



Taro 



Tuberose 



Tulip 



Tem- 

 pera- 

 ture 



(°F.) 



35-40 

 35-40 



40 

 32-36 

 32-36 

 35-40 



40 



40 

 35-40 



40 

 32-36 

 32-36 



32-45 



40-45 

 40-45 

 32-45 

 32 

 32-40 

 32-40 



32-45 



45 

 45 

 35 

 45-50 

 55-60 

 45-50 

 55-60 

 40-50 

 55-60 

 25-28 



35 

 35 

 55-60 

 55-60 

 55-60 

 45 

 40-45 

 50-55 



Approximate length 

 of storage period 



3 to 4 days. 



1 week. 



3 to 6 days. 



2 weeks. 



Do. 



3 to 6 weeks. 

 3 to 4 days. 

 3 to 6 days. 



1 month. 



3 to 4 days. 



2 weeks. 



3 to 6 days. 



2 weeks to 4 months. 



Do. 

 7 to 10 days. 



2 weeks to 4 months. 



1 month. 



3 to 6 weeks. 



Do. 



2 weeks to 4 months. 



4 to 6 months. 



Do. 

 6 to 8 months. 

 6 to 7 months. 

 4 to 6 months. 



6 to 7 months. 

 4 to 6 months. 



7 to 8 months. 

 4 to 6 months. 

 12 to 14 months. 



6 to 8 months. 



Do. 

 4 to 6 months. 



Do. 



Do. 



Do. 

 6 to 8 months. 

 4 to 6 months. 



1 See footnote 1, table 3. The average freezing points which have been determined for certain cut flowers 

 are as follows: Gardenia 28.3° F.; sweet violet 28.5°; Easter lily 27.5°; orchid (cattleya) 30.1°; peony 29.1°; 

 rose 30.0°; chrysanthemum 28.4°; gladiolus 28.7°; ranunculus 28.6°; tulip 28.0°; narcissus (daffodil) 30.1°; 

 for bulbs, corms, etc.: hyacinth 28.7°; Regal lily 27.1°; tulip 25.4°; narcissus (daffodil) 26.1°; narcissus (Paper 

 White) 28.9°; dahlia 28.3°; gladiolus 26.8°; lily (calla) 27.5°; for foliage: Holly 26.5°; sweet violet 27.4°; and 

 dagger fern 23.6°. 



■ Approximately 80 percent relative humidity. 3 Approximately 75 percent relative humidity. 



