Production Practices and Quality Assessment of Food Crops. Vol. 1

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the disease is already established and the importance to avoid the spread of this pathogen into uninfected areas. 7.2. Chestnut blight Chestnut, an Ancient Crop with Future 145 Figure 22. Ink disease killing an old tree. Chestnut blight it is caused by Cryphonectria parasitica (Murr.) Barr (Syn. Endothia parasitica [Murr.] And.). It became the major disease of chestnut due to the sen-
146 S. Pereira-Lorenzo and A. M. Ramos-Cabrer sitivity of C. dentata and less C. sativa to this fungus. Blight destroys the bark and the cambium and causing the death of the branches or the tree over the wound when the disease girdles around them (Figure 23) (Anagnostakis, 1987; Heiniger and Rigling, 1994). It was first observed in Europe in Genova, Italy in 1938, spreading quickly through Italy and other European countries (Robin and Heiniger, 2002) less so in Southern UK, Netherlands, Central and Southern Spain and the Canary Islands. Blight almost eliminated the American chestnut (C. dentata) but European chestnut recovered rapidly due to the natural occurrence of hypovirulence dsRNA hypovirus CHV1. Recently, Allemann et al. (1999) have isolated five different CHV1 subtypes. Biological control is practised in Europe applying hypovirulent strains hypovirus to growing cankers using Grente’s method (Grente and Berthelay-Sauret, 1978). 8.1. Seedlings 8. PROPAGATION Chestnut tree is naturally spread by seedlings, and this is the main way to produce plants for forest plantations and traditional rootstocks. In both cases, they should be promoted in areas over 500 m, where ink disease is less frequent. In areas Figure 23. Chestnut blight and hypovirulent traitment.
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Production Practices and Quality As
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Production Practices and Quality As
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CONTENTS Preface List of Authors Ef
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PREFACE Today, in a world with abun
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LIST OF AUTHORS Rufaro M. Madakadze
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EFFECT OF PREHARVEST FACTORS ON THE
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2.1. Temperature Effect of Preharve
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e beneficial to the water economy a
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Other responses that can also be ca
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06. Failure of fruits to ripen in t
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of more than 13 hours of night temp
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temperatures. Some show serious int
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Effect of Preharvest Factors 15 bet
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1) High rainfall conditions where B
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increase in the release of P i from
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however, more severe when foliage i
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temperatures and luxuriant growth a
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development of chilling injury symp
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conditions followed by sudden high
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season. The main environmental fact
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4.4.5.2. Water blisters Storage roo
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Effect of Preharvest Factors 33 REF
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Effect of Preharvest Factors 35 men
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EFFECTS OF AGRONOMIC PRACTICES AND
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Effects of Agronomic Practices 39 F
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Effects of Agronomic Practices 41 6
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Effects of Agronomic Practices 43 F
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Effects of Agronomic Practices 45 R
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MODELLING FRUIT QUALITY: ECOPHYSIOL
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Modelling Fruit Quality 49 the dens
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Is it the only level to be consider
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To calculate the hydrostatic pressu
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on an analysis of the biophysical p
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Modelling Fruit Quality 57 fructose
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Modelling Fruit Quality 59 Figure 4
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f(dd) = dd max - dd dd max - dd min
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which depends on climate and irriga
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distributed over the period during
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Modelling Fruit Quality 73 Pruning
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with Fo, Pe and Pr being local ‘d
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Modelling Fruit Quality 77 than in
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Modelling Fruit Quality 79 Dann, I.
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Modelling Fruit Quality 81 Huguet,
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SPRAY TECHNOLOGY IN PERENNIAL TREE
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Spray Technology in Perennial Tree
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With centrifugal energy systems dro
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fruit orchards is described as 1000
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According to Furness (2000), the nu
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sprayers which were developed prima
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Page 108 and 109: Most agricultural chemicals have be
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Page 112 and 113: Spray Technology in Perennial Tree
Page 114 and 115: Spray Technology in Perennial Tree
Page 116 and 117: CHESTNUT, AN ANCIENT CROP WITH FUTU
Page 118 and 119: 2. WORLD AREA OF CHESTNUT AND PRODU
Page 120 and 121: Table 2. Chestnut production in the
Page 122 and 123: vineyards and north facing to chest
Page 124 and 125: Chestnut, an Ancient Crop with Futu
Page 126 and 127: Table 5. Continued. Chestnut, an An
Page 134 and 135: Table 6. Continued. Chestnut, an An
Page 146 and 147: size. When the trees develop too mu
Page 152 and 153: 6.5. Management of old orchards Che
Page 158 and 159: where ink disease is rampant, disea
Page 160 and 161: 8.4. Micropropagation Several in vi
Page 162 and 163: 9.3. Hybrids Chestnut breeding in E
Page 174 and 175: IMPROVEMENT OF GRAIN LEGUME PRODUCT
Page 176 and 177: Improvement of Grain Legume Product
Page 188 and 189: 2.8. Field experiments The greenhou
Page 200 and 201: IMPACT OF OZONE ON CROPS S. DEL VAL
Page 202 and 203: Impact of Ozone on Crops 191 observ
Page 204 and 205: Impact of Ozone on Crops 193 1996).
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Impact of Ozone on Crops 195 Figure
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Impact of Ozone on Crops 197 al., 1
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Impact of Ozone on Crops 199 techni
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species show a progressive decline
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Impact of Ozone on Crops 203 Chaime
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Impact of Ozone on Crops 205 Junge,
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Impact of Ozone on Crops 207 Polle,
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SAFFRON QUALITY: EFFECT OF AGRICULT
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1.2. Commercial interest Saffron Qu
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1.3. Uses Saffron Quality 213 There
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oriental-type perfumes (Sampathu et
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Saffron Quality 217 Figure 5. Chemi
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Straubinger et al., 1997; Straubing
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and Micheli, 1979; Curro et al., 19
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Saffron Quality 223 Figure 9. Chemi
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(1984) gives the following data: δ
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Saffron Quality 227 Table 3. HPLC a
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Saffron Quality 229 464/2001, OJ L6
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Saffron Quality 231 Saffron in fila
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Saffron Quality 233 sium were the q
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Saffron Quality 235 Figure 11. The
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Saffron Quality 237 Figure 12. Harv
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Morocco. Ait-Oubahou and El-Otmani
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and Micheli, 1979a; Sampathu et al.
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Saffron Quality 243 Table 8. Drying
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Saffron Quality 245 space for sorti
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unpleasant sensory characteristics
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Saffron Quality 249 The effect of
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Saffron Quality 251 Table 10. Effec
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Saffron Quality 253 Alonso, G. L.,
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Saffron Quality 255 Escribano, J.,
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Saffron Quality 257 tion combined w
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Saffron Quality 259 Selim, K., M. T
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FRUIT AND VEGETABLES HARVESTING SYS
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3. PRINCIPLES AND DEVICES FOR THE D
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exert a vertical pulling force to t
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Fruit and Vegetables Harvesting Sys
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- fingers or spikes; - oscillatory
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- frequency and - amplitude of vibr
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To calculate the number of directio
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For the cleaning and separation of
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