Frost Protection - UTL Repository

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] F R O S T P R O T E C T I O N : F U N D A M E N T A L S , P R A C T I C E A N D E C O N O M I C S [ COMMON NAME SCIENTIFIC NAME TEMPERATURE (°C) Grape, American Horseradish Jujube; Chinese date Vitis labrusca Armoracia rusticana Ziziphus jujuba -1.4 -1.8 -1.6 Kale Kiwano Kiwifruit; Kohlrabi Leafy greens Cool season Warm season Leek Lettuce Longan Loquat Mango Melons Cantaloupes, netted melons Casaba Crenshaw Honeydew, orange-flesh Persian Mombin Mushrooms Nashi Nectarine Okra Olives, fresh Onions Mature bulbs, dry Green onions Papaya Parsley Parsnip Peach Pear, European Peas (pod, snow, snap, sugar) Peppers Bell Pepper, Paprika Hot peppers, Chiles Persimmon, kaki Fuyu Hachiya Brassica oleracea var. acephala see African horned melon Actinidia chinensis Brassica oleracea var. gongylodes various genera various genera Allium porrum Lactuca sativa Dimocarpus longan Eriobotrya japonica Mangifera indica Cucurbita melo var. reticulatus Cucurbita melo Cucurbita melo Cucurbita melo Cucurbita melo see Spondias Agaricus, other genera see Asian pear Prunus persica Abelmoschus esculentus Olea europea Allium cepa Carica papaya Petroselinum crispum Pastinaca sativa Prunus persica Pyrus communis Pisum sativum Capsicum annuum Capsicum annuum and C. frutescens Diospyros kaki -0.5 -0.9 -1.0 -0.6 -0.6 -0.7 -0.2 -2.4 -1.9 -1.4 -1.2 -1.0 -1.1 -1.1 -0.8 -0.9 -0.9 -1.8 -1.4 -0.8 -0.9 -0.9 -1.1 -0.9 -0.9 -1.7 -0.6 -0.7 -0.7 -2.2 -2.2 78
FROST DAMAGE: PHYSIOLOGY AND CRITICAL TEMPERATURES COMMON NAME SCIENTIFIC NAME TEMPERATURE (°C) Pineapple Plantain Plums and Prunes Pomegranate Potato, early crop late crop Pumpkin Quince Radish Rhubarb Rutabaga Salsify, vegetable oyster Sapotes Caimito, star apple Canistel, eggfruit Black sapote White sapote Shallot Spinach Squash Summer (soft rind); courgette Winter (hard rind); calabash Star-apple Starfruit Strawberry Sweet potato, yam [in USA] Tamarind Taro, cocoyam, Tomato mature green firm ripe Turnip root Watercress; Watermelon Witloof chicory (endive) Yam Ananas comosus Musa paradisiaca var. paradisiaca Prunus domestica Punica granatum Solanum tuberosum Cucurbita maxima Cydonia oblonga Raphanus sativus Rheum rhaponticum Brassica napus var. napobrassica Trapopogon porrifolius Chrysophyllum cainito Pouteria campechiana Diospyros ebenaster Casimiroa edulis Allium cepa var. ascalonicum Spinacia oleracea Cucurbita pepo Cucurbita moschata; C. maxima see Sapotes see Carambola see Berries Ipomoea batatas Tamarindus indica Colocasia esculenta Lycopersicon esculentum Brassica campestris var. rapifera Lepidium sativum Citrullus vulgaris Dioscorea spp. -1.1 -0.8 -0.8 -3.0 -0.8 -0.8 -0.8 -2.0 -0.7 -0.9 -1.1 -1.1 -1.2 -1.8 -2.3 -2.0 -0.7 -0.3 -0.5 -0.8 -1.3 -3.7 -0.9 -0.5 -0.5 -1.0 -0.3 -0.4 -0.1 -1.1 SOURCE: From Whiteman, 1957, as reported in the University of California, Davis, Postharvest web page: http://postharvest.ucdavis.edu/Produce/Storage/prop_a.shtml. NOTE: Some taxonomic names may have changed since 1957. 79
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- F A O E N A N D V I MO N I T O R
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FOREWORD Agrometeorology deals with
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ACKNOWLEDGEMENTS We want to thank D
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LIST OF PRINCIPAL SYMBOLS Roman Alp
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T n °C Observed minimum temperatur
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CHAPTER 1 INTRODUCTION OVERVIEW Whe
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INTRODUCTION Freeze and frost defin
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INTRODUCTION FIGURE 1.2 Mean air an
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INTRODUCTION FIGURE 1.4 Air (T a )
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INTRODUCTION TABLE 1.2 Categories a
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INTRODUCTION example, because bloom
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INTRODUCTION south in Florida in re
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INTRODUCTION assistance might be in
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CHAPTER 2 RECOMMENDED METHODS OF FR
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RECOMMENDED METHODS OF FROST PROTEC
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Page 41 and 42: RECOMMENDED METHODS OF FROST PROTEC
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PASSIVE PROTECTION METHODS damage h
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PASSIVE PROTECTION METHODS of culm
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PASSIVE PROTECTION METHODS AVOIDING
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PASSIVE PROTECTION METHODS TABLE 6.
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PASSIVE PROTECTION METHODS Organic
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PASSIVE PROTECTION METHODS Fucik (1
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PASSIVE PROTECTION METHODS Many com
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] F R O S T P R O T E C T I O N : F
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] Once started, the sprinklers shou
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CHAPTER 8 APPROPRIATE TECHNOLOGIES
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APPROPRIATE TECHNOLOGIES frost prot
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APPROPRIATE TECHNOLOGIES fashion. O
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APPROPRIATE TECHNOLOGIES CROP COUNT
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APPROPRIATE TECHNOLOGIES CROP COUNT
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APPROPRIATE TECHNOLOGIES other crop
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APPENDIX 2 CONSTANTS Specific heat
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- FAO ENVIRONMENT AND NATURAL RESOU
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