Home > V International Symposium on Protected Cultivation in Mild Winter Climates: Current Trends for Suistainable Technologies > LETTUCE GROWTH, YIELD AND NITRATE CONTENT AS AFFECTED BY ELECTRICAL CONDUCTIVITY OF NUTRIENT SOLUTION

Articles

LETTUCE GROWTH, YIELD AND NITRATE CONTENT AS AFFECTED BY ELECTRICAL CONDUCTIVITY OF NUTRIENT SOLUTION

Article number

559_82

Pages

563 – 568

Language

English

Abstract

Two lettuce cultivars, Alisia and Tibet, belonging to Lactuca sativa L. var. longifolia (Lam.) Janchen and var. capitata (L.) Janchen, respectively, were grown in an open soilless system to evaluate the influence of three nutrient solution EC levels (1.5 2.5 and 3.5 dS/m), on growth, yield and quality.
Plants were grown in greenhouse in pots filled with a mixture of peat and pumice (1:4 v:v). Solution was distributed by drippers.
In both cultivars leaf area increased with time, but whilst in Tibet no differences were observed among EC levels, in Alisia, as the EC was higher, leaf area increasing rate was lower.
In the same period, fresh weight of both cultivars rose linearly and it was higher at the lower levels of EC. Compared with Tibet, Alisia showed higher leaf area, fresh weight and dry matter content by 33, 38 and 17 %, respectively.
The highest nitrate head content was observed with 2.5 dS/m.

Publication

V International Symposium on Protected Cultivation in Mild Winter Climates: Current Trends for Suistainable Technologies

Authors

F. Serio, A. Elia, P. Santamaria, G.R. Rodriguez

Keywords

lettuce, nitrate content, salinity, peat pumice

Full text

https://doi.org/10.17660/ActaHortic.2001.559.82

Online Articles (120)

2. CROP PRACTICES AND TECHNIQUES: TRENDS AND NEEDS

G. La Malfa | C. Leonardi

3. EFFECTS OF GROWTH REGULATORS ON ROOTING AND STEM ELONGATION IN PROPAGATION OF FIVE FLOWERING TROPICAL PERENNIALS

R. Schoellhorn

4. COMPARISON OF THE DIFFERENT MULCHING MATERIALS ON THE GROWTH, YIELD AND QUALITY OF CUCUMBER (CUCUMIS SATIVUS L.)

M. Hallidri

5. SURVEY OF THE PROTECTED CULTIVATION INDUSTRY OF TABLE GRAPES FOR EARLIER PRODUCTION IN SICILY

A. Cicala | S. La Malfa | P. Saraceno Meli

6. GROWTH OF TOMATO SEEDLINGS IN A GROWTH CHAMBER WITH PRISM LIGHT GUIDES AND ELECTRODELESS DISCHARGE LAMPS

7. PRODUCTIVE BEHAVIOUR OF STRAWBERRY WAITING BED PLANTS IN HYDROPONIC CULTIVATION UNDER GREENHOUSE

8. THE EFFECT OF PLANT TRIMMING ON NETTED MELONS (CUCUMIS MELO L.) PRODUCTION, GROWN UNDER PLASTIC TUNNELS

S. Jani

9. BEAN RESPONSE TO MULCHING IN UNHEATED PLASTIC GREENHOUSE

J. Hernández | M.I. Morales | I. Escobar

10. A COMPARISON BETWEEN HYBRIDS OF GLADIOLI CULTIVATED IN NUTRIENT FILM TECHNIQUE (NFT)

A.B. Pisanu | A. Sirigu

11. GROWTH OF OREOPANAX CAPITATUS AND COCCULUS LAURIFOLIUS IN DIFFERENT PROTECTED ENVIRONMENTS

C. Cervelli | P.G. Fadelli | A. Tallone

12. AVOIDING THE BENDING (‘KINKING’) OF INFLORESCENCE PEDUNCLE ON CHERRY TOMATO

J.J. Berenguer | I. Escobar | F. Sánchez | J. Cuartero

13. EFFECT OF PLASTIC FILMS AND ROW COVERS ON GROWTH AND QUALITY OF WINTER SPINACH

K. Murakami | S. Inoue | H. Kumakura | Y. Araki

14. CUCUMBER GROWTH AND YIELD AS AFFECTED BY MULCHING IN SOILLESS CULTURE IN UNHEATED GREENHOUSE

P. Lorenzo | E. Medrano | J. Pérez | N. Castilla

15. SPROUT INHIBITION IN PEPINO (SOLANUM MURICATUM AIT.) CULTIVATED IN GREENHOUSE

J.V. Maroto | S. López-Galarza | A. San Bautista | J.L. Fresquet | C. Baixauli

16. INFLUENCE OF TWO PRUNING TYPES ON TWO CLONES OF PEPINO (SOLANUM MURICATUM AIT.) IN HYDROPONIC CULTIVATION

J.V. Maroto | S. López-Galarza | A. San Bautista | J.L. Fresquet | C. Baixauli

17. DEFOLIATION OF GREENHOUSE TOMATO PLANTS AND ITS EFFECTS ON DRY MATTER ACCUMULATION AND DISTRIBUTION TO FRUITS

J.L. Andriolo | L.L. Falcão | T.S. Duarte | E.C. Skrebsky

18. EFFECTS OF LOW TUNNELS, PLASTIC MULCH AND MINERAL NUTRIENT TREATMENTS ON CHILLING TOLERANCE OF SNAP BEAN PLANTS

W.A. El-Tohamy | S.M. Singer | U.A. El-Behairy | A.F. Abou-Hadid

19. TRIPLOID SEEDLESS WATERMELON PRODUCTION WITHOUT POLLINATORS. EFFECT OF THE NUMBER OF SPRAYED FLOWERS ON FRUIT SIZE

A. Miguel | J.V. Maroto | S. López-Galarza

20. INFLUENCE OF DIFFERENT ROOTSTOCKS ON THE YIELD AND QUALITY OF GREENHOUSES GROWN CUCUMBERS

P. Hoyos Echebarría

21. PRODUCTION OF DIFFERENT TRIPLOID WATERMELON CULTIVARS WITHOUT POLLINATORS

A. Miguel | J.V. Maroto | S. López-Galarza

22. EFFECTS OF GRAFTING ON TOMATO AND EGGPLANT

D. Romano | A. Paratore

23. GROWTH AND LEAF COLOUR RESPONSES OF OLEANDER (NERIUM OLEANDER L.) TO PINCHING AND CHLORMEQUAT CHLORIDE TREATMENT

24. TRENDS IN GREENHOUSE TECHNOLOGY FOR IMPROVED CLIMATE CONTROL IN MILD WINTER CLIMATES

A. Baille

25. EVALUATION OF GREENHOUSE STRUCTURES FOR TOMATO SPRING CROPS IN THE ENTRE DOURO E MINHO REGION OF PORTUGAL

M.J. Abreu | V.C. Ferreira | A. Sottomayor | A.C. Vargues | J.F. Meneses

26. NATURALLY VENTILATED GREENHOUSE DESIGNS FOR OPTIMUM COOLING

T.H. Short | I. Lee | R.R. Stowell

27. COMPARISON OF ASYMMETRICAL GREENHOUSE TYPES IN THE MEDITERRANEAN AREA OF SPAIN

28. CONTROL OF AN AIR CONDITIONING UNIT BASED ON A HEATING SYSTEM AND HUMID CORRUGATED PADS FOR A SUITABLE HUMIDITY IN A GROWTH CHAMBER: MODELLING AND SIMULATION

R. Tawegoum | R. Teixeira | G. Chassériaux

29. PASSIVE VENTILATED HIGH-ROOF GREENHOUSE PRODUCTION OF VEGETABLES IN A HUMID, MILD WINTER CLIMATE

30. DIRECT AND DIFFUSE LIGHT TRANSMISSION OF INSECT-PROOF SCREENS AND PLASTIC FILMS FOR CLADDING GREENHOUSES

J.I. Montero | A. Antón | J. Hernández | N. Castilla

31. EFFECT OF GREENHOUSE SHADING MATERIALS ON THE FOLIAR AREA AND FLOWERING OF TWO CYCLAMEN PERSICUM HYBRIDS

32. THE EFFECTS OF CO₂ ENRICHMENT ON CUCUMBER GROWTH UNDER GREENHOUSE CONDITIONS

M.L. Segura | J.F. Parra | P. Lorenzo | M.C. Sánchez-Guerrero | E. Medrano

33. EFFECTS OF CARBON DIOXIDE ENRICHED IRRIGATION ON YIELD OF EGGPLANT (SOLANUM MELONGENA) PRODUCTION UNDER GREEN HOUSE CONDITIONS

C. Aguilera | D. Murcia | A. Ruíz

34. AIR INFILTRATION RATE OF ALMERIA “PARRAL¿TYPE” GREENHOUSES

J.C. López | J. Pérez | J.I. Montero | A. Antón

35. THE INFLUENCE OF PHOTOSELECTIVE PLASTIC FILMS AS GREENHOUSE COVER ON SWEET PEPPER YIELD AND ON INSECT PEST LEVELS

A. González | R. Rodríguez | S. Bañon | J.A. Franco | J.A. Fernández

36. ENERGY SAVING IN GREENHOUSES WITH PLASTIC COVERINGS

37. ALTERATION OF GREENHOUSE LIGHT ENVIRONMENT BY PHOTOSELECTIVE COVERS TO PRODUCE COMPACT PLANTS

N. Rajapakse | T. Cerny | S. Li | R. Oi

38. TRANSIENT AND STATIONARY HEAT TRANSFER IN SOILS FOR A SET OF SUBSURFACE WATER HEATED PIPES

F. Alhama | C.F. González-Gernández | A. Pérez-Garrido | M. Alarcón

39. HEATING AND CO₂ ENRICHMENT IN IMPROVED LOW-COST GREENHOUSES

M.C. Sánchez-Guerrero | P. Lorenzo | E. Medrano | M. García | I. Escobar

40. NATURAL VENTILATION OF MULTI-SPAN TUNNEL GREENHOUSES WITH AND WITHOUT INSECT-PROOF SCREENS

P. Muñoz | J.I. Montero | A. Antón

41. INFLUENCE OF MISTING ON TEMPERATURE AND HEAT STORAGE OF GREENHOUSE GROWN TOMATO FRUITS DURING SUMMER CONDITIONS

A. Baille | C. Leonardi

42. EFFECTS OF ALUMINIZED SHADING SCREENS VS WHITEWASH ON TOMATO PHOTOCHEMICAL EFFICIENCY UNDER A NON HEATED GREENHOUSE

E.J. Fernandez-Rodriguez | D. Perez | F. Camacho-Ferre | J. Fernandez Vadillos | A. Kenig

43. TRANSMISSION PROPERTIES OF DRY AND WET GREENHOUSE CLADDING MATERIALS AND RELATION TO CROP PHOTOSYNTHESIS

I.V. Pollet | J.G. Pieters | J.M. Deltour

44. BIO-AGRONOMIC EFFECTS OF NET SHADING ON “PRIMOSOLE” MANDARIN

C. Germanà | A. Continella | E. Tribulato

45. MODIFICATION OF TOMATO FRUIT CHARACTERISTICS BY SALT STRESS

C. Leonardi | F. Giuffrida | V. Lipari

46. SUPPLEMENTAL LIGHTING STRATEGY FOR GREENHOUSE STRAWBERRY PRODUCTION (FRAGARIA X ANANASSA DUCH. CV. SWEET CHARLIE)

J.S. Gottdenker | G.A. Giacomelli | E. Durner

47. EFFECT OF NUTRIENT CONCENTRATION AND WATER REGIME ON CUT ROSE PRODUCTION GROWN IN HYDROPONIC SYSTEM

F. Malorgio | M. Scacco | F. Tognoni | A. Pardossi

48. EFFECTS OF NURSERY IRRIGATION AND TEMPERATURE ON MORPHO-ANATOMICAL CHARACTERISTICS OF LOTUS CRETICUS

S. Bañón Arias | J.A. Fernández Hernández | J.A. Franco Leemhuis | A. González Benavente-García

49. EFFECTS OF LIGHTING ON THE GROWTH, QUALITY AND PRIMARY NITROGEN ASSIMILATION OF GREENHOUSE LETTUCE (LACTUCA SATIVA. L)

H. Chadjaâ | L.P. Vézina | M. Dorais | A. Gosselin

50. YIELD RESPONSES OF SOILLESS MELON AND TOMATO TO DIFFERENT IRRIGATION WATER QUALITIES

51. THE EFFECT OF SOLAR RADIATION ON DENDRANTHEMA

P. Cermeño | J.A. Sotomayor | Z. Serrano | A.I. Escobar

52. EFFECTS OF WASTEWATER IRRIGATION ON MELON GROWTH UNDER GREENHOUSE CONDITIONS

M.L. Segura | R. Moreno | S. Martínez | J. Pérez | J. Moreno

53. ETHYLEN EVOLUTION FROM TOMATO PLANTS GROWN IN NFT SYSTEM

S. El-Abd | S. Salman | U.A. El-Behairy

54. VEGETATIVE GROWTH, NUTRITIONAL STATUS AND YIELD OF TOMATO PLANTS GROWING UNDER SALINITY CONDITIONS AND DIFFERENT NO₃^–:NH₄⁺ RATIOS

55. EFFECT OF MAGNESIUM DEFICIENCY IN ANTIOXIDANT ENZYMES FROM PEPPER PLANTS (CAPSICUM ANNUUM L.)

M. Anza | P. Riga

56. WEIGHT CONTROLLED IRRIGATION OF POTTED PLANTS

N.E. Andersson

57. INFLUENCE OF SHOOT BENDING ON THE PHOTOSYNTHETIC CAPACITY OF A GREENHOUSE ROSE (ROSA HYBRIDA) CANOPY

R.P. Gutiérrez Colomer | M.M. González-Real | A. Baille

58. IRRIGATION SCHEDULING FOR PLASTIC GREENHOUSE MELON CROPS BASED ON HISTORICAL REFERENCE EVAPOTRANSPIRATION DATA

M.D. Fernández | S. Bonachela | F. Orgaz | E. Fereres

59. WATERLOGGING EFFECTS ON ROOTING CAPACITY AND QUALITY OF CUTTINGS: ROSMARINUS OFFICINALIS AND LIMONIUM PECTINATUM

D. López | N. Carazo | M.C. Rodrigo

60. TRANSPIRATION AND ENERGY BALANCE OF A GREENHOUSE ROSE CROP IN MEDITERRANEAN SUMMER CONDITIONS

C. Kittas | N. Katsoulas | A. Baille

61. GROWERS’ BARRIERS TO A NEW TECHNIQUE TO IMPROVE VEGETABLE NUTRITION USING COLD WEATHER

Y. Satoh | T. Katoh | K. Ozawa

62. REGULATION OF AIR HUMIDITY AND EFFECTS ON MINERAL LEVELS AND BLOSSOM-END ROT INCIDENCE IN PEPPER FRUITS

P.F. Martínez | D. Roca

63. RESPONSE OF PLANT YIELD AND LEAF ION CONTENTS TO SALINITY IN GRAFTED TOMATO PLANTS

A. Santa-Cruz | M.M. Martínez-Rodríguez | M.C. Bolarín | J. Cuartero

64. EFFECTS OF SALINITY ON GROWTH AND LEAF WATER RELATIONS OF TWO GENOTYPES OF LIMONIUM SP

M.A. Morales | A. Torrecillas | P. Rodríguez | J.J. Alarcón | M.J. Sánchez-Blanco

65. AIR HUMIDITY, TRANSPIRATION AND BLOSSOM-END ROT IN SOILLESS SWEET PEPPER CULTURE

P.F. Martínez | S.A.A. Tartoura | D. Roca

66. MODELLING FOR PRESENT PRODUCTION PROBLEMS IN GREENHOUSE HORTICULTURE IN MILD WINTER CLIMATES

HUGO Challa

67. SIMULATING THE BEHAVIOUR OF A GREENHOUSE ROSE CROP BY MEANS OF A MODEL INCLUDING PHYSICAL AND PHYSIOLOGICAL FEEDBACK LOOPS

M.M. González-Real | A. Baille

68. A TRANSIENT GREENHOUSE CLIMATE CONTROL MODEL BY THE NETWORK SIMULATION METHOD

F. Alhama | M. Alarcón | C.F. González Fernández

69. EVALUATION OF A GREENHOUSE CROP TRANSPIRATION MODEL WITH CUCUMBER UNDER HIGH RADIATION CONDITIONS

E. Medrano | P. Lorenzo | M.C. Sánchez-Guerrero

70. DECISION MODEL TO DETERMINE DURATION OF NIGHTTIME HEATING FOR MUSKMELONS GROWN UNDER ELEVATED CO₂ LEVELS

A. Kenig | S. Kramer

71. VALIDATION AND COMPARISON OF A PHYSICAL AND A STATISTICAL DYNAMIC CLIMATEC MODEL FOR A MEDITERRANEAN GREENHOUSE IN PORTUGAL

F.J. Baptista | J. Litago | L.M. Navas | J.F. Meneses

72. GROWING MEDIA AND PLANT NUTRITION: SEARCHING FOR ENVIRONMENTAL AND PRODUCT QUALITY

A.P. Papadopoulos | M. Dorais | X. Hao | G. Turcotte | A. Gosselin

73. SLOW FILTRATION: A TECHNIQUE TO MINIMISE THE RISKS OF SPREADING ROOT-INFECTING PATHOGENS IN CLOSED HYDROPONIC SYSTEMS

E.A. van Os | M. Bruins | W. Wohanka | R. Seidel

74. ELECTRICAL CONDUCTIVITY OF NUTRIENT SOLUTION, PLANT GROWTH AND FRUIT QUALITY OF SOILLESS GROWN TOMATO

A. Elia | F. Serio | A. Parente | P. Santamaria | G. Ruiz Rodriguez

75. NUTRITIONAL ASPECTS AFFECTING TOMATO QUALITY IN SOILLESS CULTURE

J. Brañas | M.A. Ibañez | P. Lorenzo | M. Gallardo | F. Romojaro

76. TRANSPLANT DEPTH, IRRIGATION, AND SOILLESS MEDIA EFFECT ON “ELEPHANT’S FOOT” PLANT DISORDER IN A HYDROPONIC GREENHOUSE SWEET PEPPER CROP

E. Jovicich | D.J. Cantliffe

77. EFFECTS OF CLIMATIC VARIATION ON FERTIGATION OF SOILLESS CROP PRODUCTION IN A “PARRAL” PLASTIC-HOUSE

M.C. Salas | M. Urrestarazu | D. Valera | G. Carrasco

78. MACROELEMENTS UPTAKE AND IONIC INTERRELATIONSHIPS OF A TOMATO SOILLESS CROP IN RECIRCULATING SYSTEM

A.L. Alarcón | A. Faz | C. Egea | F.J. Brañas

79. COMPARISON OF WATER AND NUTRIENTS USE OF THREE CULTIVARS OF CYMBIDIUM IN A SOILLESS CULTURE SYSTEM

S. De Pascale | T. Maturi | R. Paradiso | G. Barbieri

80. NUTRIENT SOLUTION MANAGEMENT RECIRCULATING SOILLESS CULTURE OF ROSE IN MILD WINTER CLIMATES

CH. Lykas | P. Giaglaras | C. Kittas

81. RESPONSE OF LETTUCE PLANT TO FEEDING WITH UNCONVENTIONAL SOURCES UNDER HYDROPONIC SYSTEM

E.M. Abd-Elmoniem | M.Z. El-Shinawy | A.F. Abou-Hadid | Y.I. Helmy

82. EVAPOTRANSPIRATION OF TOMATO PLANTS GROWN IN DIFFERENT SOILLESS CULTURE SYSTEMS

I.H. Tüzel | M.K. Meriç

83. LETTUCE GROWTH, YIELD AND NITRATE CONTENT AS AFFECTED BY ELECTRICAL CONDUCTIVITY OF NUTRIENT SOLUTION

F. Serio | A. Elia | P. Santamaria | G.R. Rodriguez

84. EFFECT OF SUBSTRATE TYPE (PERLITE AND TUFF) IN THE WATER AND NUTRIENT BALANCE OF A SOILLESS CULTURE ROSE PRODUCTION SYSTEM

LL. Martín-Closas | X. Recasens

85. SOILLESS CULTURE OF WATERMELON [CITRULLUS LANATUS (THUNB.) MATSUM. ET NAKAI], AND SALINITY EFFECTS ON FRUIT DEVELOPMENT AND SOLUBLE SOLIDS CONTENT

S. Watanabe | Y. Sakamoto | K. Okano

86. UTILIZATION OF “A-SHAPE” SYSTEM OF NUTRIENT FILM TECHNIQUE (NFT) AS A METHOD FOR PRODUCING SOME VEGETABLE CROPS INTENSIVELY

U.A. El-Behairy | M.Z. El-Shinawy | M.A. Medany | A.F. Abou-Hadid

87. EFFECTS OF EC LEVEL OF THE NUTRIENT SOLUTION ON YIELD AND FRUIT QUALITY OF TOMATOES

I.H. Tüzel | Y. Tüzel | A. Gül | R.Z. Eltez

88. RESPONSE OF CUCUMBER AND TOMATO PLANTS TO DIFFERENT SUBSTRATES MIXTURES OF PUMICE IN SUBSTRATE CULTURE

E. Maloupa | A. Abou Hadid | M. Prasad | CH. Kavafakis

89. INFLUENCE OF FERTILISATION ON THE PRODUCTION AND VITAMIN C AND SUGAR CONTENT OF “CHERRY” TOMATOES

90. EFFECT OF FERTILIZER LEVELS ON TISSUE NITROGEN CONCENTRATION OF GREENHOUSE TOMATO PLANTS GROWN IN SUBSTRATE CULTURE

J.L. Andriolo | R.A. Grave | R.H. Bartz

91. EFFECT OF CLIMATE CONDITIONS ON PROPERTIES OF HYDROPONIC NUTRIENT SOLUTION

ROBERT Pokluda | FRANTISEK Kobza

92. COAL-MINE SPOIL RECLAIMING AS SUBSTRATE FOR “CULTIVATION WITHOUT SOIL” IN PETUNIA

R. Arias-Fernández | M.E. López-Mosquera | S. Seoane

93. EFFECTS OF THE ELECTRICAL CONDUCTIVITY OF THE NUTRITIVE SOLUTION ON DANAE RACEMOSA GROWTH

C. Dalla Guda | E. Scordo | C. Cervelli | E. Farina

94. SOILLESS CULTIVATION OF OREOPANAX CAPITATUS FOR CUT FOLIAGE PRODUCTION IN UNHEATED GREENHOUSE

G. Zizzo | G. Fascella | S. Agnello | G. Costantino

95. FORCING ORIENTAL AND ASIATIC LILIES IN SOILLESS CULTURE

A. Tribulato | G. Noto

96. TEMPERATURE OF SUBSTRATES IN RELATION TO TROUGH CHARACTERISTICS

F. Giuffrida

97. IRRIGATION CONTROL ON SUBSTRATES WITH THE LAPTOMETRON, A NEW TENSIOMETER

V. Terés Lapton | A. Artetxe | A. Beunza | R. Cerveto | J. Majada

98. PHYSICAL PROPERTIES OF THE SUBSTRATES

V. Terés Lapton | A. Artetxe | A. Beunza | E. Sáinz de la Maza | M. Lezaun

99. THE EFFECT OF pH AND COMPETING METAL IONS ON THE STABILITY OF THE ISOMERS OF FeEDDHA IN FERTIGATION SOLUTIONS

M.M. Cerdán | M. Juárez | J. Sánchez-Andréu | M.D. Bermúdez | J. Jordà

100. RESPONSE OF SOILLESS GROWN STRAWBERRY TO DIFFERENT SALINITY LEVELS IN THE NUTRIENT SOLUTION

F. Giuffrida | C. Leonardi | G. Noto

101. CONSUMER ATTITUDES TOWARDS ECOLOGICAL FRUIT AND VEGETABLES IN SPAIN. A SEGMENTATION APPROACH

S. Ruiz | P. Cuestas | N. Arcas

102. IMPROVEMENT OF FRUIT SETTING AND YIELD IN MISHQUI. A REVIEW WITH SPECIAL EMPHASIS IN GENETIC PARTHENOCARPY

F. Nuez | J. Prohens

103. PERSPECTIVES OF EVOLUTION IN FAMILY HORTICULTURAL FARMS

M.D. de Miguel | P. Caballero

104. STRUCTURE AND ECONOMY OF PROTECTED CROPS IN ANDALUSIA: A COMPARATIVE RESEARCH

C.R. García Alonso | J.M. Martín Lozano | P.P. Pérez Hernández

105. THE EFFECT OF SOIL SOLARIZATION AND PROTECTION TECHNIQUES ON YIELD TRAITS OF MELON IN UNHEATED GREENHOUSE

106. ANALYSIS OF THE EVOLUTION OF PROTECTED HORTICULTURE IN ALMERIA AREA: CYCLES, STRUCTURE AND GROWTH

J. Martínez-Paz | F. Martínez-Carrasco | R. Dios-Palomares

107. CHANGES UNDERGONE IN STRUCTURE AND AGRICULTURAL PRACTICES OF MAZARRON (MURCIA) DURING THE LAST TWENTY YEARS DUE TO THE EXPANSION OF GREENHOUSE CULTIVATION

A. Faz Cano | A.L. Alarcón Vera | P. Marín Sanleandro | M.A. Muñoz García

108. PRODUCTION FUNCTIONS FOR PLASTIC COVERED PEPPER AND TOMATO IN THE COASTLINE OF ALMERÍA: AN ANALYSIS OF PRODUCTIVE EFFICIENCY

R. Cañero León | J. Calatrava Leyva

109. ECONOMIC VALUATION OF WATER IN PROTECTED HORTICULTURE IN ALMERÍA AREA

J. Martínez-Paz | J. Calatrava-Requena

110. PRODUCTIVITY AND CULTIVATION COSTS ANALYSIS IN PLASTIC GREENHOUSES IN THE NIJAR (ALMERÍA) AREA

J. Calatrava-Requena | R. Cañero | J. Ortega

111. PRELIMINARY STUDY ON INSECTICIDE RESISTANCE IN FRANKLINIELLA OCCIDENTALIS (PERGANDE) (THYSANOPTERA: THRIPIDAE) IN SWEET PEPPER CROPS IN CAMPO DE CARTAGENA, S.E OF SPAIN

J. Contreras | D. Moreno | M.D. Hernández | P. Bielza | A. Lacasa

112. CONTROL OF POWDERY MILDEW BY SPRAYING THE ELECTROLYZED WATER IN HYDROPONICALLY GROWN STRAWBERRY

S. Tsukagoshi | Y. Sunohara | Y. Noma | E. Takahashi | A. Schörner

113. METHODS TO CONTROL PYTHIUM AND PHYTOPHTHORA IN COLD PLASTIC HOUSES

J.J. Berenguer | I. Escobar | M. García | J. Gómez | A. Alvarez

114. CONTROL OF FUSARIUM WILT ON RUSCUS AND CHARACTERIZATION OF ISOLATES COLLECTED IN LIGURIA

C. Pasini | M. Sacco | F. D'Aquila | G. Fantino

115. EXPERIMENTS ON GREENHOUSE WHITEFLY CONTROL BY THE MIRID BUGS MACROLOPHUS CALIGINOSUS WAGNER AND CYRTOPELTIS TENUIS (REUTER) IN PROTECTED WINTER TOMATO CROPS

M. Nannini

116. EVALUATION OF TOMATO HYBRIDS RESISTANT TO TSWV UNDER GREENHOUSE CONDITIONS IN ARGENTINA

M. Mitidieri | I. de Mitidieri | E. Dal Bó

117. HIGH TEMPERATURE EFFECT ON TOMATO PREDISPOSITION TO TSWV

M. Mitidieri | E. Biderbost | P. Castellano | E. Taleisnik

118. VEGETAL WASTE FROM PROTECTED HORTICULTURE IN SOUTHEASTERN SPAIN: CHARACTERISATION OF ENVIRONMENTAL EXTERNALITIES

S. Parra | J.J. Pérez | J. Calatrava

119. THERMAL ENVIRONMENT AND STRESS OF WORKERS IN NATURALLY VENTILATED GREENHOUSES UNDER MILD CLIMATE

L. Okushima | S. Sase | I.-B. Lee | B.J. Bailey

120. EFFECTS OF MODIFIED ATMOSPHERE ON THE CONSERVATION OF CANTALOUPE MELON WILD TYPE AND TRANSGENIC ACO ANTISENSE