Home > XI International Symposium on Plant Bioregulators in Fruit Production > EFFECT OF 6-BA, NAA AND THEIR MIXTURES ON FRUIT THINNING AND FRUIT YIELD IN ‘CONFERENCE’ AND ‘BLANQUILLA’ PEAR CULTIVARS

Articles

EFFECT OF 6-BA, NAA AND THEIR MIXTURES ON FRUIT THINNING AND FRUIT YIELD IN ‘CONFERENCE’ AND ‘BLANQUILLA’ PEAR CULTIVARS

Article number

884_45

Pages

379 – 382

Language

English

Abstract

Trials on Conference and Blanquilla orchards were carried out in 2005 and 2007 in the Lleida basin (north-east Spain). Several thinning treatments involving 6-BA and NAA were applied either alone or in mixtures and the results were compared with hand-thinning.
In all years, the experimental design was a randomized block.
Both bioregulators showed a thinning effect, but this was not statistically significant in all cases.
An improvement in fruit thinning was detected when both bioregulators were applied together.
In some cases, this effect was too great and resulted in a decrease of around 60% in the final fruit yield, with BA at 150 ppm + NAA at 40 ppm in Conference, while in Blanquilla, the decrease was of around 30%. There was a direct relationship between fruit weight and crop load and a tendency for fruit weight to increase with 6-BA in Blanquilla.

Publication

XI International Symposium on Plant Bioregulators in Fruit Production

Authors

L. Asín, P. Vilardell, J. Bonany, S. Alegre

Keywords

fruit growth, crop load, auxin, cytokinin, fruit abscission

Full text

https://doi.org/10.17660/ActaHortic.2010.884.45

Online Articles (103)

1. THE DEVELOPMENT AND USE OF PLANT BIOREGULATORS IN TREE FRUIT PRODUCTION

D.W. Greene

2. MOLECULAR ANALYSIS OF THE DEVELOPMENTAL AND HORMONAL SYSTEMS REGULATING FRUIT RIPENING

J. Giovannoni | J.M. Lee | M.M. Chung | E. Fox

3. HORMONAL CROSS TALK BETWEEN FRUIT AND SEED THROUGHOUT DEVELOPMENT AND RIPENING IN PEACH

4. STRIGOLACTONE EFFECT IN SHOOT BRANCHING

C. Rameau | J.P. Pillot

5. GENES INVOLVED IN THE CONTROL OF ETHYLENE BIOSYNTHESIS DURING CLIMACTERIC OF PRUNUS PERSICA FRUIT

A. Tadiello | L. Trainotti | V. Ziosi | G. Costa

6. ETHYLENE PRODUCTION DURING GRAPE BERRY DEVELOPMENT AND EXPRESSION OF GENES INVOLVED IN ETHYLENE BIOSYNTHESIS AND RESPONSE

7. PHENOLIC COMPOUNDS AND TOTAL SUGAR CONTENT IN ‘ORO AZTECA’ PEACH FRUIT SPRAYED WITH PUTRESCINE

O. Franco-Mora | O. Pérez-Huerta | E.J. Morales-Rosales | A. González-Huerta | M. Huerta-Lara

8. EFFECT OF ETHYLENE SUPPRESSION ON HEPTOSE SUGARS METABOLISM AND RIPENING IN AVOCADO ‘HASS’ FRUIT

M.D. Meyer | L.A. Terry

9. COMPARATIVE APPLE-TOMATO GENOMICS TO UNRAVEL THE 1-MCP EFFECT ON APPLE MATURATION AND RIPENING

10. EARLY JASMONATE APPLICATION INTERFERES WITH PEACH FRUIT DEVELOPMENT AND RIPENING AS REVEALED BY SEVERAL DIFFERENTIALLY EXPRESSED SEED AND MESOCARP GENES

11. TIMING OF APPLICATION AND GROWTH REGULATOR INTERACTION EFFECTS ON FRUIT GROWTH OF TWO SPECIES OF ACTINIDIA

E. Brown | D.J. Woolley

12. MOLECULAR CLONING AND EXPRESSION ANALYSIS DURING OLIVE FRUIT DEVELOPMENT OF S-ADENOSYLMETHIONINE DECARBOXYLASE

F.J. Delgado-Martinez | M.A. Paredes | M.C. Parra-Lobato | M.C. Gomez-Jimenez

13. CHANGES IN THE EXPRESSION OF GENES INVOLVED IN ETHYLENE SIGNALLING IN PEACH FRUIT WITH DIFFERENT FLESH TEXTURE AND SOFTENING PATTERNS

14. 9,10-KETOL OCTADECADIENOIC ACID (KODA) LEVELS AND FLOWER BUD FORMATION IN APPLES

15. PROHEXADIONE-CA MODIFIES CONTENT OF GIBBERELLINS AND VITAMIN C, ANTIOXIDANT CAPACITY AND ENZYMATIC ACTIVITY IN APPLE

16. ISOLATION OF A FRUIT WEIGHT 2.2 (FW2.2) HOMOLOG IN ‘HASS’ AVOCADO AND CHARACTERIZATION OF ITS EXPRESSION AS RELATED TO REDUCED CELL DIVISION AND SMALL FRUIT PHENOTYPE

Y. Dahan | R. Rosenfeld | V. Irihimovitch

17. INVESTIGATION OF THE EFFECTS OF EXTERNAL DAMINOZIDE APPLICATION ON ENDOGENOUS HORMONE LEVELS IN ‘MEMECIK’ OLIVE TREES

S. Ulger | O. Akdesir | S. Demiral | A. Atmaca

18. PLANT BIOREGULATORS IN THE DECIDUOUS FRUIT TREE NURSERY

D.C. Elfving

19. DECIDUOUS FRUIT TREES IN A WARMING WORLD: EFFECT ON FLOWER AND FRUIT DEVELOPMENT

20. THE IMPACT OF BLOSSOM AND POSTBLOOM THINNERS ON FRUIT SET AND FRUIT QUALITY IN APPLES AND STONE FRUITS

E. Fallahi | D.W. Greene

21. PLANT GROWTH REGULATORS FOR IMPROVING POSTHARVEST STONE FRUIT QUALITY

S. Lurie

22. THE ROLE OF POLYAMINES ON FRUIT RIPENING AND QUALITY DURING STORAGE: WHAT IS NEW

D. Valero

23. EFFECTS OF GROWTH RETARDANTS ON VEGETATIVE GROWTH OF DATE PALMS

24. THE EFFECTIVENESS OF 3,5,6-TPA USED AGAINST PRE-HARVEST FRUIT DROP IN APPLE

A. Basak | M. Buczek

25. ETHYLENE AND WINE GRAPE BERRIES: METABOLIC RESPONSES FOLLOWING A SHORT-TERM POSTHARVEST TREATMENT

E. Becatti | A. Ranieri | L. Chkaiban | P. Tonutti

26. ALTERNATE THINNING CHEMICALS FOR APPLES

S.A. Bound

27. LOOKING FOR SOLUTIONS FOR CHEMICAL FRUIT THINNING ON APPLE

T. Deckers | H. Schoofs | W. Verjans

28. APPLICATION OF CHEMICAL PRODUCTS ON OVERCOMING THE ENDODORMANCY IN PEAR TREES IN REGIONS OF LOW COLD UNITIES

R. Formolo | L. Rufato | A.A. Kretzschmar | J.L. Marcon Filho | A.F. Brighenti

29. PROHEXADIONE-CALCIUM AFFECTS SHOOT GROWTH OF EVERGREEN SUBTROPICAL WOODY PERENNIALS DIFFERENTLY THAN DECIDUOUS TEMPERATE ZONE WOODY PERENNIALS – IS IT A CASE OF APPLES AND ORANGES?

L.C. Garner | Y. Zheng | T. Khuong | C.J. Lovatt

30. EFFECT OF PRE- AND POSTHARVEST TREATMENTS OF SALICYLIC AND GIBBERELLIC ACID ON RIPENING AND SOME PHYSICOCHEMICAL PROPERTIES OF ‘MASHHAD’ SWEET CHERRY (PRUNUS AVIUM L.) FRUIT

M. Gholami | A. Sedighi | A. Ershadi | H. Sarikhani

31. OPTIMIZING BENZYLADENINE APPLICATION TIMING IN ‘WILLIAMS’ PEAR

32. EFFECTS OF NAA AND GA₃ SPRAYS ON FRUIT SIZE AND THE INCIDENCE OF CREASING OF ‘WASHINGTON’ NAVEL ORANGE

33. THE APPLICATION OF BLACK FOOD COLORANTS – A POSSIBLE ALTERNATIVE TO CHEMICAL THINNING AGENTS IN APPLE?

M. Hegele | K. Schmid | I. Schmid | J.N. Wünsche

34. CHEMICAL THINNING OF ‘CONFERENCE’ PEARS

F.M. Maas | H.J. Kanne | P.A.H. van der Steeg

35. A COMPARISON OF PROHEXADIONE CALCIUM (REGALIS) WITH PACLOBUTRAZOL (CULTAR) ON ‘BRAMLEY’S SEEDLING’ APPLES (MALUS SILVESTRIS × MALUS PUMILA MILL.) IN IRELAND

S. Mac Santaoir | F. Ward | J. Archer | J. Mansfield

36. ETHEPHON AS A BLOSSOM AND FRUITLET THINNER AFFECTS CROP LOAD, FRUIT WEIGHT AND FRUIT QUALITY OF THE EUROPEAN PLUM CULTIVAR ‘JUBILEUM’

M. Meland | E. Birken

37. EFFECT OF 1-METHYLCYCLOPROPENE AND RETAIN^® ON QUALITY ATTRIBUTES OF ‘KRISTALI’ PEARS AFTER SHORT OR LONG TERM COLD STORAGE

G. Pantelidis | M. Vasilakakis | G.A. Manganaris

38. EFFECT OF GROWTH REGULATORS ON ‘GALA’ APPLE FRUCTIFICATION

J.L. Petri | G.B. Leite | M. Couto | F.J. Hawerroth

39. AVG AND FRUIT SET: A TOOL FOR WHICH NOVEL APPLICATIONS ARE STILL BEING DEVELOPED IN VARIOUS FRUIT CROPS – THE CASE OF WALNUTS

J. Retamales | P.D. Petracek

40. AVG COMBINED WITH NAA CONTROL PRE-HARVEST DROP OF ‘MCINTOSH’ APPLES BETTER THAN EITHER CHEMICAL ALONE

T. Robinson | S. Hoying | K. Iungerman | D. Kviklys

41. FRUIT SET AND RETURN BLOOM OF LIGHT, MEDIUM AND HIGH FLOWERING APPLE TREES AFTER BA APPLICATIONS

M. Stopar

42. IMPROVEMENT OF THE FRUIT SET OF ‘JONAGOLD’

J. Vercammen | A. Gomand | L. Denruyter

43. EFFECT OF HYDROGEN CYANAMIDE ON DORMANCY RELEASE, BUDBREAK AND FRUITING IN JAPANESE PEAR

G.C. Zanol | Y. Sekozawa | S. Sugaya | H. Gemma

44. APPLICATION OF ETHEPHON AND ABA AT 40% VERAISON ADVANCED MATURITY AND QUALITY OF ‘BEIDANEH GHERMEZ’ GRAPE

M.E. Amiri | E. Fallahi | SH. Parseh

45. EFFECT OF 6-BA, NAA AND THEIR MIXTURES ON FRUIT THINNING AND FRUIT YIELD IN ‘CONFERENCE’ AND ‘BLANQUILLA’ PEAR CULTIVARS

L. Asín | P. Vilardell | J. Bonany | S. Alegre

46. INFLUENCE OF THIDIAZURON IN DIRECT SHOOT REGENERATION FROM SEGMENTS OF IN VITRO LEAVES, AND AXILLARY AND APICAL BUDS OF OLIVE (OLEA EUROPAEA)

M.K. Bahrami | A. Motallebi Azar | M.R. Dadpour

47. RESULTS ON THE USE OF 3,5,6-TPA AGAINST PREHARVEST FRUIT DROP IN ‘CONFERENCE’ PEAR

A. Basak | M. Buczek

48. CROP LOAD CONTROL OF ‘FUJI’ APPLE IN CENTRAL ITALY

A. Belleggia | G. Murri | D. Neri

49. A TIME-COURSE MODEL FOR BA ACTION IN APPLE FRUITLET THINNING

50. SUCCESSFUL THINNING OF APPLES WITH AN ORGANOSILICONE SURFACTANT

S.A. Bound | J.D. Klein

51. INCREASING FRUIT SET OF ‘RED BARTLETT’ PEARS IN SOUTHERN BRAZIL

52. INFLUENCE OF L-PROLINE ON CITRUS SINENSIS (L.) [‘NEW HALL’ AND ‘TAROCCO SCIRÈ’] FRUIT QUALITY

A. Caronia | G. Gugliuzza | P. Inglese

53. EFFECT OF HYDROGEN CYANAMIDE ON BUD BREAK, FLOWERING AND FRUIT GROWTH OF TWO PEAR CULTIVARS (PYRUS COMMUNIS) UNDER TUNISIAN CONDITION

M.A. Chabchoub | M.K. Aounallah | A. Sahli

54. FOLIAR-APPLIED 3,5,6-TRICHLORO-2-PYRIDYLOXYACETIC ACID (3,5,6-TPA) INCREASES YIELD OF COMMERCIALLY VALUABLE LARGE-SIZE FRUIT OF ‘FINA SODEA’ CLEMENTINE MANDARIN

C.T. Chao | C.J. Lovatt

55. STUDIES OF FOLIAR APPLIED CLAY EFFECTS ON THE APPLE FRUIT QUALITY

56. EFFECT OF ABSCISIC ACID AND SOYBEAN OIL ON DELAY OF PEACH FLOWERING

D.E. Deyton | C.E. Sams | J.C. Cummins

57. EFFECT OF SOYBEAN OIL AND ABSCISIC ACID ANALOGS ON EARLY SEASON GRAPE GROWTH

D.E. Deyton | C.E. Sams | J.C. Cummins

58. INFLUENCE OF STREPTOMYCIN AND CUSO₄ ON SEEDLESSNESS AND FRUIT QUALITY IN ‘ROTABI SEYAH’ TABLE GRAPE

S. Eshghi | B. Kavoosi | M.H. Farehi

59. GIBBERELLIC ACID AND CLUSTER THINNING ON SEEDLESS GRAPE ‘BRS CLARA’ IN CAXIAS DO SUL, RIO GRANDE DO SUL STATE, BRAZIL

60. BENZYLADENINE EFFECTS ON FRUIT QUALITY OF ‘SWEETHEART’ AND ‘LAPINS’ SWEET CHERRIES

61. FRUIT GROWTH AND ABSCISSION PATTERN OF ‘WILLIAMS’ PEAR TREATED WITH BENZYLADENINE

62. GROWTH INHIBITION IN ‘FRENCH’ PRUNE BY PROHEXADIONE CALCIUM

K. Glozer

63. IMPROVING THE COLOUR OF ‘TEMPRANILLO’ GRAPES BY SPRAYING ETHANOL AT VERAISON AND PRE-HARVEST

R. González | M.R. González | L. Uzquiza | P. Martín

64. EFFECT OF THINNER AND TIME OF SHADING ON FRUIT SET OF ‘MCINTOSH’ APPLES

D.W. Greene | P. Groome

65. BUDBREAK INDUCTION IN APPLE TREES BY ERGER AND CALCIUM NITRATE APPLICATION

F.J. Hawerroth | J.L. Petri | G.B. Leite

66. NUTRIENT-BIOREGULATOR INTERACTION EFFECTS ON BANANA

P. Jeyakumar | R. Amutha | T.N. Balamohan

67. TEMPERATURE BEFORE AND AFTER APPLICATION OF CHEMICAL THINNERS AFFECTS THINNING RESPONSE OF ‘EMPIRE’ APPLE TREES

D. Kviklys | T. Robinson

68. EFFECTS OF CHEMICAL THINNING WITH METAMITRON ON FRUIT SET, YIELD AND FRUIT QUALITY OF ‘ELSTAR’

G. Lafer

69. INCREASING APPLE FRUIT SET ON ‘CONDESSA’ USING GROWTH REGULATORS

G.B. Leite | J.L. Petri | M. Couto | F.J. Hawerroth

70. EFFECTS OF FOLIAR DA-6 ON SOME CONTENTS OF CITRUS FRUITS ON THE TREES AND DECAY INCIDENCE AFTER HARVEST

G. Liang | J. Zhong | X. Deng

71. USE OF PLANT BIOREGULATORS TO STIMULATE EMBRYO GROWTH AND LOOSEN FRUIT TO INCREASE SPLIT NUT YIELD OF PISTACHIO

C.J. Lovatt | Y. Zheng

72. 1-MCP CAN PREVENT ETHYLENE-INDUCED DAMAGE TO FRUIT TREES DURING COLD STORAGE

F.M. Maas | A.C.R. van Schaik | M.C.J. Hof | R.H.N. Anbergen | M.B.M. Ravesloot

73. IN VITRO TREATMENT WITH A LOW MOLECULAR WEIGHT HUMIC ACID CAN IMPROVE GROWTH AND MINERAL UPTAKE OF PEAR PLANTLETS DURING ACCLIMATIZATION

74. THE EFFECT OF GA₃ AND ETHEPHON ON SYNCHRONIZATION OF COFFEE (COFFEA ARABICA L.) FLOWERING AND BERRY RIPENING

M.T. Masarirambi | V.D. Shongwe | V. Chingwara

75. EVALUATION OF A MODEL TO PREDICT THE RESPONSE OF ‘GALA’ APPLES TO CHEMICAL THINNERS

S.J. McArtney | J.D. Obermiller

76. IN VITRO PROLIFERATION OF OLIVE (‘DOLCE AGOGIA’ AND ‘MORAIOLO’): EFFECT OF DIFFERENT CYTOKININS

M. Micheli | A. Standardi | A.W. El Behi | D. Zakhour | M. Yasin

77. MANGO FLOWER INDUCTION IN THE BRAZILIAN NORTHEAST SEMI-ARID WITH GIBBERELLIN SYNTHESIS INHIBITORS

M.A. do C. Mouco | E.O. Ono | J.D. Rodrigues

78. EFFECT OF GIBBERELIN ON SETTING AND GROWTH OF NON-POLLINATED PARTHENOCARPIC FRUIT IN MANGO

T. Ogata | H. Tamura | K. Hamada | K. Hasegawa

79. EFFECT OF 1-METHYLCYCLOPROPENE ON QUALITY ATTRIBUTES OF ‘CALDESI 2000’ WHITE-FLESH NECTARINE DURING COLD STORAGE

G. Pantelidis | M. Vasilakakis

80. EFFECT OF DELAY BETWEEN HARVEST AND EXPOSURE TO 1-MCP ON POST STORAGE FLESH FIRMNESS OF THREE APPLE CULTIVARS

M.L. Parker | S.J. McArtney | J.D. Obermiller | T. Hoyt

81. GROWTH OF MICROPROPAGATED BLUEBERRY UNDER DIFFERENT GA₃ CONCENTRATIONS

T.R. Pelizza | G.L. Carvalho | M.W. Schuch

82. GROWTH EVALUATION OF BLUEBERRY MINICUTTINGS UNDER DIFFERENT GROWTH REGULATORS

T.R. Pelizza | G.L. Carvalho | M.W. Schuch

83. DORMANT APPLICATIONS OF A SOYBEAN OIL ADJUVANT PLUS ETHEPHON REDUCE PEACH FLOWER BUD SURVIVAL

G.L. Reighard | D. Ouellette | K. Brock

84. CHEMICAL THINNING AND SUMMER PGRS FOR CONSISTENT RETURN CROPPING OF ‘HONEYCRISP’ APPLES

T. Robinson | S. Lopez | K. Iungerman

85. BUD BREAK IN DIFFERENT CULTIVARS OF APPLE TREES IN TWO REGIONS OF SANTA CATARINA STATE, BRAZIL

86. DELAY OF FLOWER BUD PHENOLOGY OF RABBITEYE AND SOUTHERN HIGHBUSH BLUEBERRIES WITH SOYBEAN OIL AND ABSCISIC ACID

C.E. Sams | D.E. Deyton | J.C. Cummins | J.R. Ballington

87. EFFECT OF LOW TEMPERATURE ON FLOWERING AND ENDOGENOUS HORMONAL STATUS IN DENDROBIUM SCABRILINGUE L.

S. Sarathum | S. Tantiviwat | M. Nanakorn | M. Hegele | J.N. Wünsche

88. OVERCOMING THE ENDODORMANCY OF APPLE TREES IN SOUTHERN BRAZIL

C. Schlemper | L. Rufato | A.A. Kretzschmar | M. Mendes | T.A. Macedo

89. PRACTICAL GIBBERELLIC ACID PROGRAMS FOR MITIGATION OF BIENNIAL BEARING IN APPLE

T. Schmidt | J. McFerson | D.C. Elfving | M. Whiting

90. FOLIAR APPLICATION OF UNICONAZOLE SUPPRESSES ‘ARBEQUINA’ OLIVE (OLEA EUROPAEA L.) TREE GROWTH IN HIGH-DENSITY ORCHARD

D. Schneider | M. Goldway | I. Adato | R. Birger | R.A. Stern

91. UNICONAZOLE ON MANGO FLORAL INDUCTION CULTIVAR ‘KENT’ AT SUBMEDIO SÃO FRANCISCO REGION, BRAZIL

G.J.N. Silva | E.M. Souza | J.D. Rodrigues | E.O. Ono | M.A.C. Mouco

92. PREHARVEST APPLICATIONS OF METHYL JASMONATE INTERFERE WITH PEACH FRUIT (PRUNUS PERSICA L. BATSCH) RIPENING AS REVEALED BY PHYSIOLOGICAL PARAMETERS

A. Soto | V. Ziosi | G. Costa | P. Torrigiani

93. EFFECT OF BIOREGULATORS ON GROWTH AND SECONDARY METABOLISM OF ACTINIDIA ARGUTA PLANTS

D. Treutter | J. Hadersdorfer | J. Pietzner | M. Steber

94. FRUIT THINNING OF PEACH AND NECTARINE

D. Vego | P. aravanja | Z. Knezović

95. BUDDING HEIGHT AND PLANTING DEPTH INFLUENCE ‘FUJI’ AND ‘GOLDEN DELICIOUS’ (MALUS DOMESTICA BORKH.) APPLE TREE PERFORMANCE

J. Vigl | P. Brunner

96. ROLES OF JASMONATES IN FRUIT RIPENING AND ENVIRONMENTAL STRESS

S. Kondo

97. DEALING WITH PLANT BIOREGULATORS: AN INDUSTRIAL VIEW

W. Rademacher

98. DOSE AND TIME DEPENDENT EFFECTS OF METHYL JASMONATE ON ABSCISSION OF GRAPES

M. Fidelibus | K. Cathline

99. FOLIAR-APPLIED TRYPTOPHAN INCREASES TOTAL YIELD AND FRUIT SIZE OF NAVEL ORANGE AND CLEMENTINE MANDARIN

L.J. Pillitteri | I. Bertling | T. Khuong | C.T. Chao | C.J. Lovatt

100. EXPLORING BIOSTIMULANT EFFECT OF A BRASSICACEA PLANT EXTRACT: USE OF MAIZE SEEDLING DEVELOPMENT AS REFERENCE BIOASSAY

C.M. Rivera | A. Salerno | P. Sequi | E. Rea | A. Trinchera

101. EFFECTS OF 2,4-D ON THE SIZE OF THE NAVEL-END OPENING AND FRUIT QUALITY OF ‘WASHINGTON’ NAVEL ORANGE

J.S. Verreynne | G. Mupambi

102. EFFECTS OF FROST-INDUCED BIENNIAL BEARING ON NUTRIENT AVAILABILITY AND FRUIT DISORDERS IN AN INTEGRATED APPLE ORCHARD

P.T. Nagy | Z. Szabó | J. Nyeki | M.C. Dussi

103. COMMENTS AND CONCLUDING REMARKS OF THE ISHS WORKING GROUP ON PLANT BIOREGULATORS IN FRUIT PRODUCTION

G. Costa | D.W. Greene