Home > II All Africa Horticulture Congress > INTERACTION OF GREENHOUSE WHITEFLY (TRIALEURODES VAPORARIORUM) AND ROOT-KNOT NEMATODE (MELOIDOGYNE JAVANICA) ON NEMATODE-RESISTANCE IN WILD WATERMELON

Articles

INTERACTION OF GREENHOUSE WHITEFLY (TRIALEURODES VAPORARIORUM) AND ROOT-KNOT NEMATODE (MELOIDOGYNE JAVANICA) ON NEMATODE-RESISTANCE IN WILD WATERMELON

Article number

1007_49

Pages

431 – 438

Language

English

Abstract

Influence of foliar infection by the greenhouse whitefly (GHWF) on resistance to Meloidogyne javanica on highly nematode-resistant wild watermelon (Cucumis africanus) was investigated to establish if it was necessary to manage GHWF population densities in Cucumis species.
A 2×2 factorial experiment was laid out in a randomised complete block design, with 12 replications.
The greenhouse was partitioned into 24 compartments of 2.5 m² each using a mosquito-proof net.
Approximately 2,200 second-stage nematode juveniles and 1000 adult greenhouse whitefly from tomato plants were introduced into selected treatments a day after transplanting.
Fifty-six days after initiating the treatments, significant interactions on variables were observed, with GHWF eliminated resistance to M. javanica in C. africanus seedlings as shown by the reproductive factor values that were greater than unity, and reduced plant yield.
Consequently, there is need to manage GHWF population densities when C. africanus seedlings are used as nematode-resistant rootstocks for managing M. javanica population densities.

Publication

II All Africa Horticulture Congress

Authors

K.M. Pofu, P.W. Mashela, T.P. Mafeo

Keywords

host-parasitic relationships, interaction, non-structural carbohydrates, osmoticum ions, resistance, Trialeurodes vaporariorum, wild watermelon

Full text

https://doi.org/10.17660/ActaHortic.2013.1007.49

Online Articles (119)

1. EFFECT OF MATURITY STAGE AND CULTIVAR ON THE EFFICACY OF 1-MCP TREATMENTS IN MANGO FRUITS

J. Ambuko | R.W. Githiga | M.J. Hutchnison | H. Gemma | W.O. Owino

2. THE EFFECT OF 1-MCP AND STORAGE DURATION ON THE STORAGE POTENTIAL AND FLESH BROWNING DEVELOPMENT ON ‘CRIPPS PINK’ APPLES STORED UNDER CONTROLLED ATMOSPHERE CONDITIONS

T.J. Majoni | M. Jooste | E.M. Crouch

3. EFFECT OF 1-METHYLCYCLOPROPENE (1-MCP) AND 1-MCP PLUS ETHYLENE COMBINATIONS ON THE GREEN SHELF-LIFE AND RIPENING OF BANANA [MUSA AAA (CAVENDISH SUB-GROUP) ‘WILLIAMS’]

N.J.R. Roets | F.J. Kruger

4. PACKAGING IN THE MAINTENANCE OF POSTHARVEST KEEPING QUALITY OF ‘PARTHENON’ BROCCOLI DURING LONG TERM STORAGE AND SUBSEQUENT SHELF-LIFE

T. de Beer | E.M. Crouch

5. EFFECT OF AGRO-ECOLOGICAL ZONE AND MATURITY ON THE EFFICACY OF 1-METHYLCYCLOPROPENE (1-MCP) IN EXTENDING POSTHARVEST LIFE OF PURPLE PASSION FRUITS (PASSIFLORA EDULIS SIMS)

A. Baraza | J. Ambuko | Y. Kubo | W.O. Owino

6. QUANTIFYING THE EFFECTS OF FRUIT POSITION IN THE CANOPY ON PHYSICAL AND BIOCHEMICAL PROPERTIES AND PREDICTING SUSCEPTIBILITY TO RIND BREAKDOWN DISORDER OF ‘NULES CLEMENTINE’ MANDARIN (CITRUS RETICULATE BLANCO) USING VIS/NIR SPECTROSCOPY

7. INVESTIGATION OF THE EFFICIENCY OF THE TOTAL ANTIOXIDANTS ASSAYS IN SILICON-TREATED LEMON FRUIT (CITRUS LIMON)

A. Mditshwa | J.P. Bower | I. Bertling | N. Mathaba

8. CHILLING INJURY IN CITRUS FRUIT: A HOLISTIC VIEW

N. Mathaba | I. Bertling | J.P. Bower

9. POSTHARVEST RIND DISORDERS OF ‘NADORCOTT’ MANDARIN ARE AFFECTED BY ROOTSTOCK IN ADDITION TO POSTHARVEST TREATMENTS

P.J.R. Cronjé

10. POSTHARVEST APPLICATION OF THIABENDAZOLE REDUCES CHILLING INJURY OF CITRUS FRUIT

J. Hordijk | P.J.R. Cronjé | U.L. Opara

11. EFFECT OF METHYL JASMONATE AND SALICYLIC ACID POSTHARVEST TREATMENT ON MECHANISMS AND ACTIVITIES OF ANTIOXIDANTS IN LEMON FRUIT RIND DURING COLD STORAGE

X.I. Siboza | J.P. Bower | I. Bertling

12. RESPONSE OF CITRUS PHYSIOLOGY TO PHOSPHORUS ACID AND SILICON AS ELICITORS OF INDUCED DISEASE RESISTANCE

N. Mkhize | J.P. Bower | I. Bertling | N. Mathaba

13. ADDRESSING THE POSTHARVEST VASCULAR STAINING DISORDER OF ‘MALUMA’ AVOCADO (PERSEA AMERICANA MILL.) FRUIT

S.D. Mhlophe | F.J. Kruger

14. SYSTEMIC RESISTANCE INDUCERS APPLIED PREHARVEST FOR COLLETOTRICHUM GLOEOSPORIOIDES CONTROL IN AVOCADOS

R.J. Bosse | J.P. Bower | I. Bertling

15. A PRELIMINARY STUDY INTO PROTOCOLS FOR THE LONG-TERM COLD STORAGE OF LEUCOSPERMUM POTTED PLANTS

E.W. Hoffman | M. Du Plessis

16. EFFECT OF LIGHT AND FRUIT MATURITY ON POSTHARVEST COLOUR CHANGE IN GREEN ‘SONDELA’ PEPPERS (CAPSICUM ANNUUM L.)

C.M. Alcock | I. Bertling

17. EVALUATION OF NEEM AS A SURFACE PROTECTANT OF YAM (DIOSCOREA ROTUNDATA POIR) TUBERS

E.N.K. Sowley | N.J. Osei | C. Katsekpor

18. HEAT TRANSFER AND EXTERNAL QUALITY ATTRIBUTES OF ‘REGAL SEEDLESS’ TABLE GRAPES INSIDE MULTI LAYERED PACKAGING DURING POSTHARVEST COOLING AND STORAGE

M.E.K. Ngcobo | M.A. Delele | U.L. Opara | G.D. Thiart | C.J. Meyer

19. EXTENDING STORAGE OF ‘HASS’ AVOCADOS USING ULTRA-LOW TEMPERATURE SHIPPING AND 1-MCP

R.D. Kok | J.P. Bower | I. Bertling

20. SPATIAL VARIATION OF FRUIT COOLING RATE AND RELATIVE HUMIDITY INSIDE ‘SUPER-VENT’ PACKAGING FOR CITRUS DURING STATIC COOLING

T. Berry | M.A. Delele | U.L. Opara | P.J.R. Cronjé

21. EFFECTS OF LOW TEMPERATURE STORAGE AND COLD CHAIN BREAKS ON ANTI-OXIDANTS AND C7 SUGARS IN ‘FUERTE’ AVOCADOS FROM SOUTH AFRICA

A. Lütge | I. Bertling | J.P. Bower

22. POSITIVE SELECTION: A SIMPLE TECHNIQUE FOR IMPROVING SEED POTATO QUALITY AND POTATO PRODUCTIVITY AMONG SMALLHOLDER FARMERS

23. UNDESIRABLE NATURAL CHARACTERISTICS OF SOUTH AFRICAN INDIGENOUS PLANTS LIMITING THEIR HORTICULTURAL USE

L. Middleton

24. MORPHO-MARKERS AS SEX DETERMINANTS IN FLUTED PUMPKIN (TELFAIRIA OCCIDENTALIS) PLANTS

N.I. Odiaka | A.P. Anande | T.J. Maga

25. PROGENY EVALUATION OF SOME SWEET POTATO [IPOMOEA BATATAS (L.) LAM.] BREEDING LINES IN SOUTH AFRICA

L. Zulu | P.O. Adebola | A. Shegro | S.M. Laurie | M. Pillay

26. EVALUATION OF COMMERCIAL POTATO CULTIVARS FOR RESISTANCE TO THE TUBER NECROTIC STRAIN OF POTATO VIRUS Y

27. A DISCUSSION OF THE CHALLENGES FACED BY AND THE ADVANTAGES OFFERED BY THE ARC’S CITRUS BREEDING PROGRAMME

28. PHENOTYPIC DIVERSITY OF CULTIVATED MANGOES IN OMAN

R.A. Al-Yahyai | A.M. Al-Subhi | S. Al-Khanjari | Z. Al-Farei

29. COMPARATIVE STUDY ON THE PERFORMANCE OF SOME EXOTIC CHILLI PEPPER ACCESSIONS IN IBADAN, SOUTHWESTERN NIGERIA

F.M. Tairu | A.O. Olufolaji | M.A. Abdul Rafiu | C. Kouame

30. GENETIC VARIABILITY AND VIRAL DISEASE ASSESSMENTS IN SOLANUM SPP.

O.D. Ojo | O.A. Adetula | V.A. Chikaleke

31. PHOSPHATE (P) SOURCES AND IRRIGATION SUPPLY INFLUENCE YIELD AND TRANSPIRATION WATER USE EFFICIENCY IN GRAIN AMARANTH (AMARANTHUS CRUENTUS L.)

O.D. Ojo

32. THE POTENTIAL USE OF ANAEROBIC BAFFLED REACTOR (ABR) EFFLUENT FOR PERI-URBAN HORTICULTURE

A.O. Odindo | I.N.H. Ngobese | S. Madlala | S.Z. Tesfay

33. EFFECT OF DIFFERENT RATES OF SULPHUR FERTILIZATION ON FRUIT YIELD AND LEAF MINERAL COMPOSITION OF ‘VALENCIA’ ORANGES IN THE SUBTROPICAL ENVIRONMENT OF SOUTH AFRICA

N.R. Murovhi

34. THE RESPONSE OF ROSE GERANIUM (PELARGONIUM GRAVEOLENS L.) TO NITRATE AND AMMONIUM APPLICATION

M.M. Sedibe | J. Allemann

35. INFLUENCE OF THE RATE AND TIMING OF MULCHING ON THE GROWTH AND YIELD OF GINGER (ZINGIBER OFFICINALE L.)

G.S. Akinwumi | T.A. Fariyike | O.O. Olufunmi | I.A. Olabode | B.A. Adelaja

36. EFFECT OF CALCIUM APPLICATIONS BY DRIP FERTIGATION ON APPLE FRUIT CALCIUM LEVELS

J. Joubert | P.J.C. Stassen | J. Wooldridge | E.Y. Reinten

37. EFFECTS OF CATTLE MANURE APPLICATION ON GROWTH AND MARKETABLE YIELD OF TRADITIONAL OKRA (CORCHORUS OLITORIUS L.) IN SWAZILAND

M.T. Masarirambi | M. Nkomo | T.O. Oseni | P.K. Wahome

38. BIBLIOMETRIC ANALYSIS OF DISEASE INCIDENCE ON MUSA SPECIES IN AFRICA

M.A. Adejoro | S.O.S. Akinyemi | B.O. Fagbola | O.S. Adebayo

39. INCIDENCE OF PESTS AND SEEDBORNE FUNGI IN SEEDS STORED BY INDIGENOUS METHODS IN THE NADOWLI DISTRICT OF GHANA

E.N.K. Sowley | A. Baalabong

40. MANAGEMENT OF DIEBACK DISEASE OF PASSION FRUITS

41. THE OCCURRENCE OF INDIGENOUS HETEROPTERANS ON SUBTROPICAL FRUIT IN SOUTHERN AFRICA

P.S. Schoeman | R. Mohlala

42. SCALE AND MEALYBUG SURVEY ON MANGO IN MPUMALANGA AND LIMPOPO PROVINCES, SOUTH AFRICA

T. Grové | M.S. De Beer | M.S. Daneel | W.P. Steyn

43. EFFICACY OF FOUR BOTANICALS AND TWO CHEMICAL FUNGICIDES IN THE CONTROL OF CROWN ROT DISEASE OF BANANA (MUSA SPP. AAA) ‘MEDIUM CAVENDISH’

P. Kumah | E.O. Ampomah | N.S. Olympio | E. Moses

44. PESTICIDE RESIDUES ANALYSIS OF THREE VEGETABLE CROPS FOR URBAN CONSUMERS IN BENIN – HUMAN AND ENVIRONMENTAL CONSEQUENCES OF ABUSE AND MISUSE OF SYNTHETIC PESTICIDES

M.-G. Sæthre | F. Assogba Komlan | N. Oseth Svendsen | B. Holen | I. Godonou

45. EVALUATION OF AMARANTHUS SPECIES FOR THEIR HOST SUITABILITY TO THE ROOT-KNOT NEMATODES, MELOIDOGYNE INCOGNITA RACE 2 AND MELOIDOGYNE JAVANICA IN SOUTH AFRICA

W.P. Steyn | M.S. Daneel | M.M. Slabbert

46. CAN IODOMETHANE REPLACE METHYL BROMIDE AS A FUMIGANT?

M.S. Daneel | W.P. Steyn

47. HOST STATUS OF INDIGENOUS LEAFY VEGETABLE AND WEED SPECIES TO ROOT-KNOT NEMATODES

N. Ntidi | W.S. Jansen van Rensburg | D. Fourie | A. McDonald

48. SOIL HEALTH AND NEMATODE COMMUNITY STRUCTURE RESPONSES TO DIFFERENT MULCH TYPES IN AVOCADO PRODUCTION

B. Nzanza | P. Pieterse

49. INTERACTION OF GREENHOUSE WHITEFLY (TRIALEURODES VAPORARIORUM) AND ROOT-KNOT NEMATODE (MELOIDOGYNE JAVANICA) ON NEMATODE-RESISTANCE IN WILD WATERMELON

K.M. Pofu | P.W. Mashela | T.P. Mafeo

50. THE EFFECT OF TWO NEMATODE SPECIES (MELOIDOGYNE JAVANICA AND CRICONEMOIDES XENOPLAX) ON SOUTH AFRICAN-BRED STONE FRUIT ROOTSTOCKS SCREENED UNDER CONTROLLED CONDITIONS

S. Booi | A.P. Malan

51. MONITORING FRUIT FLIES IN AVOCADO ORCHARDS IN MPUMALANGA

T. Grové | M.S. De Beer

52. EMERGING NETWORKS TO FOSTER AGROECOLOGY IN TROPICAL HORTICULTURE

53. INFLUENCE OF FRUIT DEVELOPMENTAL AND MATURITY STAGES ON CHEMICAL, PHYTOCHEMICAL AND ANTIOXIDANT PROPERTIES OF POMEGRANATE JUICE

O.A. Fawole | U.L. Opara | K.I. Theron

54. CHEMICAL, MICROBIOLOGICAL AND SENSORY CHARACTERISTICS OF LEATHER BLENDS PRODUCED FROM MANGO (MANGIFERA INDICA ‘OGBOMOSO’) AND CARROT (DAUCUS CAROTA)

O.O. Ezekiel | M.T. Olukuewu

55. STRUCTURAL ANALYSIS OF PUBLICATION PROFILES FOR TELFAIRIA OCCIDENTALIS IN NIGERIA

M.A. Adejoro | B.O. Fagbola | E.O. Adelowo | A. Dada

56. THE EFFECT OF CANOPY POSITION ON APPLE FRUIT EATING AND APPEARANCE PREFERENCES BY CONSUMERS

E. Hamadziripi | K.I. Theron | M. Muller | W.J. Steyn

57. MARKET STRUCTURE AND PERFORMANCE OF FRESH TOMATOES IN IBADAN METROPOLIS, OYO STATE

I.B. Adeoye | R.B. Ibe

58. THE DESIGN OF A HORTICULTURAL THERAPY MODEL AND A PRACTICAL BUSINESS PLAN FOR A HORTICULTURIST INTERACTING WITH A HEALTHCARE WORKER

J.R.V. October | A. De Villiers | L. Dolley

59. EFFECT OF PLANT DENSITY AND HARVESTING FREQUENCY ON YIELD COMPONENTS OF HYDROPONICALLY GROWN MUSTARD SPINACH (BRASSICA JUNCEA)

M.M. Maboko

60. THE EFFECT OF ELECTRICAL CONDUCTIVITY AND STEM PRUNING ON THE GROWTH AND EARLY YIELD OF HYDROPONIC TOMATOES GROWN IN COIR

C.M. Fulton | E. Kempen

61. ASSESSMENT OF THE EFFECT OF PRUNING SYSTEMS ON PLANT DEVELOPMENTAL CYCLE – YIELD AND QUALITY OF SELECTED INDETERMINATE TOMATO LINES

C. Mbonihankuye | P. Kusolwa | T.J. Msogoya

62. GROWTH AND YIELD RESPONSE OF SWEET PEPPER AS INFLUENCED BY LIVE MULCHES

H.A. Akintoye | G.A. Adebayo

63. TRADITIONAL CULTIVATION OF POMEGRANATE IN OMAN

F.A. Al Said | R.A. Al-Yahyai | U.L. Opara

64. CHEMICAL BLOSSOM THINNING OF ‘KAKAMAS’ AND ‘KEISIE’ PEACH (PRUNUS PERSICA [L.] BATSCH.) CULTIVARS

M.S. North | K. de Kock | M. Booyse | F.W.R. Gonggrijp

65. YIELDS AND COST-BENEFIT ANALYSIS OF SWEET CORN PRODUCTION IN THE GUINEA SAVANNA OF NORTHERN NIGERIA

Y.A. Sani | S. Usman | Z. Omenesa | I.J. Sambo

66. THE EFFECT OF CROSS-POLLINATION OF SOUTHERN HIGHBUSH BLUEBERRIES ON FRUIT SET AND FRUIT CHARACTERISTICS

J.L. Müller | W.J. Steyn | K.I. Theron

67. ALTERNATIVE METHOD OF OPTIMIZING YIELD OF TOMATOES IN A CLOSED HYDROPONIC SYSTEM

M.M. Maboko | C.P. Du Plooy

68. NO WASTE IN MUSA SPECIES: THE USE OF BANANA AND PLANTAIN LEAVES IN THE PRODUCTION OF EDIBLE MUSHROOMS

O.O. Idowu | S.O.S. Akinyemi

69. AGRONOMIC ASSESSMENT OF A TARO-BAMBARA INTERCROP UNDER RAINFED CONDITIONS

T. Mabhaudhi | A.T. Modi | Y.G. Beletse

70. COMPONENT INTERACTIONS AND PRODUCTIVITY OF PLANTAIN INTERCROPPED WITH FLUTED PUMPKIN

I.O.O. Aiyelaagbe | A.A. Kintomo

71. PRELIMINARY INVESTIGATION INTO THE POTENTIAL FOR COMMERCIALIZATION OF INDIGENOUS FRUITS IN RURAL COMMUNITIES: SURVEY, FRUIT COMPOSITION, PROPAGATION AND PRODUCT DEVELOPMENT

72. HORTICULTURE COLLABORATIVE RESEARCH SUPPORT PROGRAM (HORT CRSP): MAKING AN IMPACT IN AFRICA

73. ROLE AND CONSTRAINTS OF MUSA PRODUCTION IN SOUTHWESTERN NIGERIA

74. ABE BAILEY NATURE RESERVE NEAR KHUTSONG: MEDICINAL PLANTS, FOOD GARDENS AND A SEASON OF URBAN PROTEST

S.J. Taylor

75. CAPACITY BUILDING: A BASIS FOR TECHNOLOGY ADOPTION AND SUSTAINABLE POTATO PRODUCTION IN EASTERN AFRICA

76. FACTORS INFLUENCING THE ADOPTION OF TECHNOLOGIES ON VEGETABLE CROPS BY SMALL SCALE FARMERS IN MAKURDI LOCAL GOVERNMENT AREA OF BENUE STATE, NIGERIA

O.E. Odiaka | A. Osupala | N.I. Odiaka

77. DEVELOPMENT OF IMPROVED CULTIVARS OF TELFAIRIA OCCIDENTALIS FOR IMPROVED LIVELIHOOD AND FOOD SECURITY

O.A. Adetula | V.A. Chikaleke

78. PRIVATE CONTRACTING VERSUS COMMUNITY SEED PRODUCTION SYSTEMS: EXPERIENCES FROM FARMER-LED SEED ENTERPRISE DEVELOPMENT OF INDIGENOUS VEGETABLES IN TANZANIA

79. RESULTS FROM A SURVEY ON SCHOOL FOOD GARDENS IN SOUTH AFRICA: PERCEPTIONS OF TEACHERS, LEARNERS AND PARENTS

S.M. Laurie | M. Faber | M.E. Malebana | E. van den Heever

80. PROFILING CSSV-RESISTANCE OF SOME COCOA CULTIVARS IN GHANA

81. ISOLATION AND CHARACTERISATION OF RESISTANT GENE ANALOGUES FROM GUAVA

A.A. Severn-Ellis | M. Schoeman | S. Willemse | A. Sippel

82. ADDITIVE MAIN EFFECTS AND MULTIPLICATIVE INTERACTION ANALYSIS OF ARABICA COFFEE (COFFEA ARABICA L.) FOR YIELD

M. Kebede | M. Demissie | G. Taye

83. COMBINED THERMOTHERAPY AND MERISTEM TIP CULTURE FOR EFFICIENT ELIMINATION OF FEATHERY MOTTLE VIRUS IN SWEET POTATO (IPOMOEA BATATAS)

J. Mashilo | R. van Niekerk | P. Shanahan

84. AGRICULTURAL RESEARCH COUNCIL’S POTATO IN VITRO GENEBANK

P.N. Myeza | A. Visser

85. PRELIMINARY RESULTS ON THE USE OF FLOW CYTOMETRY AS A DIAGNOSTIC TOOL FOR THE IDENTIFICATION OF POLYEMBRYONIC CITRUS ROOTSTOCK HYRBIDS

K.F. Hannweg | G. Visser | A. Sippel

86. IN VITRO MANAGEMENT OF CROWN ROT DISEASE OF BANANA (MUSA SPP. AAA) ‘MEDIUM CAVENDISH’ USING EXTRACTS FROM OCIMUM GRATISSIMUM, ALSTONIA BOONEI AND GARCINIA KOLA

M. Appiah-Sarpong | P. Kumah | N.S. Olympio | E. Moses

87. THE RESPONSE OF BANANA (‘DWARF CAVENDISH’) TISSUE CULTURED PLANTLETS TO DIFFERENT NITROGEN SOURCES

M. Mazibuko | V. Shongwe | M.T. Masarirambi | T.O. Oseni

88. ESTABLISHMENT OF A MOLECULAR GENOTYPE REFERENCE DATABASE FOR MANDARIN ACCESSION VERIFICATION

A.A. Severn-Ellis | A. Sippel | Z. Dlamini | B. Manicom

89. IN VITRO PROPAGATION OF GETHYLLIS MULTIFOLIA L. BOLUS (KUKUMAKRANKA) – A THREATENED SOUTH AFRICAN GEOPHYTE WITH MEDICINAL POTENTIAL

C.W. Daniels | J. North | C. Joubert

90. INVESTIGATION OF CROSSING BARRIERS BETWEEN CALIBRACHOA AND PETUNIA SPECIES

S. Olschowski | L. Meyer | V. Mußmann | M. Serek

91. RADIATION TRANSMISSION THROUGH COLOURED SHADE NETTING AND PLASTICS AND ITS EFFECT ON EUCALYPTUS GRANDIS × E. NITENS HYBRID MINI-HEDGE SHOOT INTERNODE LENGTH, STEM DIAMETER AND LEAF AREA

D.L. Gilbert | I. Bertling | M.J. Savage

92. VEGETATIVE PROPAGATION OF PELARGONIUM SIDOIDES (RABASSAM): FACTORS AFFECTING ROOTING OF LEAF-BUD CUTTINGS

M.S. Pholo | P. Soundy | E.S. Du Toit

93. ANALYSES OF ENDOGENOUS SOLUBLE SUGARS AND ROOTING STIMULANTS

M. Ziganira | I. Bertling

94. INVESTIGATION INTO THE EFFECT OF MULTIPLE HOT WATER TREATMENT OF TOMATO (SOLANUM LYCOPERSICUM) AND PEPPER (CAPSICUM ANNUUM) SEEDS ON SEED VIABILITY AND SEED VIGOUR

W. Musazura | I. Bertling

95. EFFECT OF SEED TREATMENT AND GROWTH MEDIA ON THE PROPAGATION OF SEEDS OF ALLIGATOR PEPPER (AFRAMOMUM MELEGUETA K. SCHUM.)

T.A. Fariyike | O.S. Adebayo | O.M. Adewale | B.A. Adelaja | E.A. Adesegun

96. OPTIMISING STEM DIAMETERS OF WATERMELON CULTIVARS AND INDIGENOUS CUCUMIS SPECIES FOR IMPROVING COMPATIBILITY OF INTER-GENERIC GRAFTS

K.M. Pofu | P.W. Mashela | T.P. Mafeo

97. CONTRIBUTION OF URBAN VEGETABLE FARMERS TO FOOD SECURITY: THE CASE OF THE AKINYELE LOCAL GOVERNMENT, OYO STATE, NIGERIA

M.A. Badmus | A.O. Olufolaji

98. URBAN AND PERI URBAN HORTICULTURE IN NAMIBIA

A. Fosso | R. Kahane

99. NOVEL USAGE OF 2,4-D TO INCREASE CITRUS FRUIT QUALITY

O.P.J. Stander | K.I. Theron | P.J.R. Cronjé | J.S. Verreynne

100. THE EFFECT OF PLANT SIZE AND SPRAY VOLUME ON THE EFFICACY OF AVIGLYCINE IN THE INHIBITION OF NATURAL FLOWERING OF ‘QUEEN’ PINEAPPLE (ANANAS COMOSUS) IN SOUTH AFRICA

E.C. Rabie | B.W. Mbatha | H.A. Tustin

101. EFFECT OF PACLOBUTRAZOL ON HARVEST MATURITY, FRUIT STORABILITY AND VEGETATIVE GROWTH OF ‘TRIUMPH’ PERSIMMON (DIOSPYROS KAKI THUNB.)

M. Bill | K.I. Theron | S.F. Ungerer | W.J. Steyn

102. YIELD DECLINE IN VEGETATIVELY PROPAGATED TEA (CAMELLIA SINENSIS (L.) O. KUNTZE) UNDER CONTINUOUS MECHANICAL HARVESTING

G.M. Madamombe | N.J. Taylor | E. Tesfamariam

103. DEVELOPMENTS IN THE WORLD AVOCADO INDUSTRY, AND THEIR RELEVANCE TO THE SOUTH AFRICAN AND AFRICAN INDUSTRIES

B.N. Wolstenholme

104. THE SOUTH AFRICAN DECIDUOUS FRUIT INDUSTRY

K.I. Theron

105. ASSESSMENT OF TECHNOLOGY-DRIVEN CITRUS PRODUCTION AND POSTHARVEST HANDLING IN SELECTED STATES OF SOUTHWESTERN NIGERIA

L.O. Olajide-Taiwo | A.O. Akinsorotan | F.B. Olajide-Taiwo

106. A MODEL FOR COMMERCIALISATION OF HONEYBUSH TEA, AN INDIGENOUS CROP

C. Bester

107. SPICE PRODUCTION IN SELECTED STATES OF NORTH CENTRAL NIGERIA: A GENDER OUTLOOK

O.O. Oyedele | F.B. Olajide-Taiwo | O. Adebisi-Adelani | E.A. Adesegun | G.S. Akinwumi

108. PATTERN OF CONSUMPTION AND PREFERENCE FOR SELECTED SPICES IN NIGERIA

109. THE EFFECT OF THE DEVELOPMENT OF A RAPID RESPONSE TO SANITORY AND PHYTOSANITORY CONCERN SYSTEM ON EXPORT ORIENTED HORTICULTURE IN GHANA

M. Kumah | F. Appiah

110. CHALLENGES IN HORTICULTURAL CROPS MARKETING IN NIGERIA: THE SPICES EXPERIENCE

C.A. Akinpelu | O.S. Adebayo | T.A. Fariyike | O.M. Adewale

111. FRUIT VEGETABLE FARMERS’ PERCEPTION OF CLIMATE CHANGE AND ADAPTATION STRATEGIES IN GOMBE STATE, NIGERIA

O. Adebisi-Adelani | O.B. Oyesola

112. SIMULATING THE YIELD RESPONSE OF ORANGE FLESHED SWEET POTATO ‘ISONDLO’ TO WATER STRESS USING THE FAO AQUACROP MODEL

Y.G. Beletse | R. Laurie | C.P. Du Plooy | S.M. Laurie | A. van den Berg

113. CALIBRATION OF AQUACROP MODEL TO PREDICT WATER REQUIREMENTS OF TRADITIONAL AFRICAN VEGETABLES

114. USE OF LINEAR REGRESSION MODELS TO ESTIMATE MISSING HEAT PULSE VELOCITY DATA: A CASE STUDY IN TWO CITRUS CULTIVARS

W. Mahohoma | N.J. Taylor | J.G. Annandale | M.B. Gush

115. SHADE NET EFFECTS ON CHEMICAL COMPOSITION OF PELARGONIUM SIDOIDES (GERANIACEAE)

P.M. Ntshabele | P. Soundy | Z. Apostolides

116. MEDICINAL PLANT RESEARCH IN SOUTH AFRICA: CONTRIBUTION BY ARC-ROODEPLAAT VEGETABLE AND ORNAMENTAL PLANT INSTITUTE

R. Kleynhans

117. THE VALUE AND IMPACT OF THE ARC INFRUITEC-NIETVOORBIJ GENEBANKS

118. THIRTY YEARS OF PRESERVING CLONAL GENETIC RESOURCES IN THE US NATIONAL PLANT GERMPLASM SYSTEM

K. Hummer | J. Postman

119. COLLECTION, MAINTENANCE AND UTILIZATION OF PLANT GENETIC RESOURCES AT AGRICULTURAL RESEARCH COUNCIL (ARC)-ROODEPLAAT VOPI, SOUTH AFRICA