Home > VI International Symposium on Pear Growing > POLLEN PRODUCTION OF SOME PEAR (PYRUS COMMUNIS L.) CULTIVARS

Articles

POLLEN PRODUCTION OF SOME PEAR (PYRUS COMMUNIS L.) CULTIVARS

Article number

367_11

Pages

97 – 99

Language

Abstract

The pollen production of 19 pear cultivars was determined using the hemocytomet ric method.
It was found that the number of pollen grains per anther and flower varies between cultivars.
This trial indicated that ‘Williams’ (Bartlett) is the best pollen producer.

Publication

VI International Symposium on Pear Growing

Authors

H. Dumanoglu, M. Celik

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1994.367.11

Online Articles (75)

2. RELATIONSHIP BETWEEN FIRE BLIGHT RESISTANCE AND SOME TRAITS IN PEAR.

G.L. Bagnara | L. Rivalta | M. Laghi | R. Quarta

3. STUDIES ON CHROMOSOME OF PYRUS IN CHINA

L. Shenghua | F. Chengquan

4. STUDIES ON INHERITANCE OF SOME AGRONOMICAL CHARACTERS IN PEAR

F. Chengquan | P. Fushen | C. Xinye

5. NEW PROMISING PEAR SELECTIONS FOR PUNJAB

6. RECENT ADVANCES IN CHINESE PEAR BREEDING AND GENETICS IN CHINA

D. Shen | B. Lin | D. Chen

7. RESISTANCE SOURCES TO PSYLLA SP.

N. Braniste | V. Amzar | M. Radulescu

8. GENETIC RESOURCES OF PYRUS AND RELATED GENERA AT THE CORVALLIS REPOSITORY

K.E. Hummer

9. ELIMINATION OF VIRUSES FROM CLONAL PEAR GERMPLASM

Joseph D. Postman

10. SIMULTANEOUS FLOWERING OF PEAR VARIETIES AND OVERLAP OF FLOWERING CURVES IN DIFFERENT VARIETY CONBINATIONS

M. GÖNDÖRNÉ PINTÉR | J. NYÉKI | Z. SZABÓ

11. RECENT DATA ON FERTILIZATION OF PEAR VARIETIES

J. NYÉKI | M. GÖNDÖRNÉ PINTÉR | Z. SZABÓ

12. POLLEN PRODUCTION OF SOME PEAR (PYRUS COMMUNIS L.) CULTIVARS

H. Dumanoglu | M. Celik

13. DIFFERENCES IN FRUIT COLOR CHANGE WITH MATURITY AND GROWING LOCATION IN RED PEARS

C. Dussi | D. Sugar | K. Powers | S. Basile

14. RELATIONSHIP BETWEEN VEGETATIVE STRUCTURE AND EARLY BEARING IN PEAR SEEDLINGS

G.L. Bagnara | M.L. Maltoni | M. Laghi | L. Rivalta

15. BIOMETRIC RELATIONSHIPS BETWEEN ROOTS AND CANOPY IN PEAR

G.L. Bagnara

16. CHANGES IN PEAR CONSUMPTION IN ITALY

G. Bagnara

17. NUMERICAL EXPRESSION OF THE FLOWERING OF PEAR (PYRUS COMMUNIS L.) CULTIVARS

A. Máthé | J. Göndör | J. Nyéki

18. POMOLOGICAL EVALUATION OF EAST EUROPEAN PYRUS GERMPLASM

R. L. Bell | T. Zwet

19. INTERSPECIFIC PEAR BREEDING

Allan G. White | R. Hart

20. TRAINING AND PRUNING OF PEAR TREES IN COUNTRIES CHARACTERIZED BY LONG HOT SUMMERS AND WHERE DWARFING ROOTSTOCKS CANNOT BE USED, OR ARE NOT AVAILABLE.

D.K. Strydom

21. CANOPY ARCHITECTURE, TRAINING AND PRUNING IN THE MODERN EUROPEAN PEAR ORCHARDS: AN OVERVIEW

S. Sansavini | S. Musacchi

22. PROSPECT FOR EARLY PEAR PRODUCTIVITY – A VIEW AND IDEAS OF A PRACTICAL HORTICULTURIST

B. Ende

23. PEAR TRAINING TO MAXIMIZE PROFITABILITY

Eugene A. Mielke | C. Seavert

24. SHOOT POSITIONING

Eugene A. Mielke | L. Smith

25. INFLUENCE OF TREE WATER STATUS AND CANOPY POSITION ON FRUIT SIZE AND QUALITY OF BARTLETT PEARS

26. PEAR PRODUCTION IN WASHINGTON STATE: A SYSTEM OVERVIEW.

M. J. Willett

27. PEAR CULTURE IN ROMANIA AND EASTERN EUROPEAN COUNTRIES

N. Braniste

28. EFFECT OF DIFFERENT CHEMICALS ON YIELD AND FRUIT QUALITY OF ‘LE CONTE’ PEAR

J. SINGH | K.K. SHARMA | S.S. MANN | R. SINGH | G.P.S. GREWAL

29. EFFECT OF CYANAMIDE ON BUD BURST, FLOWERING AND FRUIT MATURITY OF BAGGUGOSHA PEAR

S.S. Mann | H. Singh | A.S. Sandu | G.P.S. Grewal

30. BEHAVIOUR OF LATE PEAR-TREE VARIETIES IN NORTHERN SPAIN

M. Coque Fuertes | M.B. Díaz Hernández | M. Ciordia Ara | J.C. García Rubio

31. EFFECTS OF UNPRUNING ON FRUIT PRODUCTIVITY AND SHOOT GROWTH IN JAPANESE PEARS

O. Kishimoto | A. Tomomatsu | H. Fukamachi

32. RUSSET DEVELOPMENT IN THE ‘BEURRE BOSC’ PEAR

G.F. Gil | D.A. Urquiza | J.A. Bofarull | G. Montenegro | J.P. Zoffoli

33. DORMANCY OF ‘PACKHAM’S TRIUMPH’ AND ‘WINTER NELIS’ PEAR BUDS IN RELATION WITH WINTER CHILLING, HYDROGEN CYANAMIDE AND THIOUREA.

G. F. Gil | M. Lyon

34. STRIP PEAR ORCHARD DESIGN

B. Ristevski

35. PERFORMANCE OF MICROPROPAGATED PEAR TREES

S. Sansavini

36. SEQUENTIAL INTRODUCTION OF HONEY BEE COLONIES FOR PEAR POLLINATION

D.F. Mayer

37. EFFECTS OF EVAPORATIVE COOLING BY OVERTREE SPRINKLER IRRIGATION AND OF LIGHT QUALITY ON COLOR OF ‘SENSATION’ RED BARTLETT PEARS

C. Dussi | D. Sugar | T. Righetti | A. Azarenko

38. EFFECT OF CROP DENSITY ON VEGETATIVE GROWTH, FLOWERING, FRUIT SIZE, AND YIELD IN ‘NIJISSEIKI’ PEAR TREES

S. Gu | Porter B. Lombard

39. THE EFFECT OF WITHIN-ROW SPACING ON NURSERY TREE QUALITY OF PEARS ON BA29 AND QUINCE C

J.W. Palmer | H. Gibbs | G. Lupton | W. Cashmore | S.J. Tustin

40. TRELLIS AND TRAINING SYSTEMS FOR BOSC AND COMICE PEARS IN SOUTHERN OREGON

D. Sugar | P. Buskirk

41. WHAT THE PEAR INDUSTRY NEEDS FROM RESEARCH FOR THE TWENTY-FIRST CENTURY

G. Ing

42. THE POSSIBILITY OF USING FLORAL ANALYSIS TO DIAGNOSE THE NUTRITIONAL STATUS OF PEAR TREES

M. Sanz | L. Montañés | M. Carrera

43. PHYSIOLOGICAL DISORDERS OF PEARS IN RELATION WITH NUTRITION

G.F. Gil | J.A. Henríquez | C.A. Vera | J.P. Zoffoli

44. NITROGEN REQUIREMENTS AND NITROGEN-UPTAKE EFFICIENCY FOR COMICE PEARS

T.L. Righetti | H. Khemira | D. Sugar | E.E. Sanchez

45. RELATIONSHIP BETWEEN CHROMATICITY VALUES AND NITROGEN CONTENT OF PEAR LEAVES

H. Khemira | D. Sugar | T.L. Righetti

46. RELATIONSHIP BETWEEN YIELD AND LEAF MINERAL CONTENT IN PEAR ORCHARDS

E. E. Sanchez | G. M. Silva

47. EFFECTIVENESS OF EARLY VERSUS LATE CALCIUM SPRAYS ON MINERAL COMPOSITION, YIELD, FRUIT SIZE AND CONTROL OF FRUIT DISORDERS OF ‘ANJOU’ PEARS

J.T. Raese | S.R. Drake | E.A. Stahly

48. EFFECT OF CALCIUM SPRAYS ON CONTROL OF BLACK END, FRUIT QUALITY, YIELD AND MINERAL COMPOSITION OF ‘BARTLETT’ PEARS

J.T. Raese

49. INFLUENCE OF SOURCES OF ZINC ON GROWTH AND NUTRIENT STATUS OF SAND PEAR (PYRUS PYRIFOLIA (BURM) NAKAI)

A.S. Sandhu | K. Singh | S.S. Mann | G.P.S. Grewal

50. INFLUENCE OF SOIL MANAGEMENT SYSTEM IN THE EVOLUTION OF HUMIDITY AND CHARACTERISTICS OF THE SOIL, IN A PEAR ORCHARD

J. GOMEZ-APARISI | J. AIBAR | C. ZARAGOZA | M. CARRERA

51. INFLUENCE OF SOIL MANAGEMENT SYSTEM IN THE EVOLUTION OF PEAR GROWTH AND CROPPING

J. GOMEZ-APARISI | J. AIBAR | C. ZARAGOZA | M. CARRERA

52. CHEMICAL WEED CONTROL IN PEAR ORCHARDS OF NORTHERN INDIA

P.P.S. Minhas | D. Singh | A.S. Sandhu | S.S. Mann

53. PEAR ROOTSTOCK RESEARCH IN BRITISH COLUMBIA

F. Kappel | H. Quamme | M. Meheriuk | L. Denby

54. ROOTSTOCKS FOR PEAR PRODUCTION

Eugene A. Mielke | T. J. Facteau

55. IN VITRO ROOTING OF QUINCE A (CYDONIA OBLONGA MILL.)

H. Dumanoglu | Y. Gulsen

56. SELECTION OF CLONAL ROOTSTOCKS OF PYRUS COMMUNIS (L.)

D. Bassi | M. Tagliavini | B. Marangoni

57. FRUIT DISORDERS, MINERAL COMPOSITION AND TREE PERFORMANCE INFLUENCED BY ROOTSTOCKS OF ‘ANJOU’ PEARS

J.T. Raese

58. GRAFT COMPATIBILITY OF PEAR WITH RELATED GENERA

Joseph D. Postman

59. OBSERVATIONS ON GRAFT INCOMPATIBILITY BETWEEN PEAR AND QUINCE

M. Carrera

60. FROM CONVENTIONAL TO INTEGRATED FRUIT PRODUCTION: A COMPARISON OF PEAR PEST MANAGEMENT PROGRAMS IN EUROPE, THE UNITED STATES AND SOUTH AMERICA

H. Riedl

61. GEOGRAPHIC INFORMATION SYSTEMS AND SIMULATION IN REGIONAL ORCHARD MANAGEMENT: PESTICIDE RESISTANCE IN HOOD RIVER VALLEY, OREGON

L. B. Coop | Brian A. Croft | H. Riedl | E. C. Burts

62. PRESENT DISTRIBUTION OF FIRE BLIGHT AND ITS MODE OF DISSEMINATION — A REVIEW

T. Zwet

63. THE EFFECT OF TWOSPOTTED SPIDER MITE ON BARTLETT PEAR AND THE MANAGEMENT OF INFESTATION USING DAMAGE THRESHOLDS

S.C. McNab | P.H. Jerie | D.G. Williams

64. POTENTIAL OF FUNGAL PATHOGENS FOR THE CONTROL OF PEAR PSYLLA

Gary J. Puterka

65. PEAR PEST MANAGEMENT USING CODLING MOTH MATING DISRUPTION AND HORTICULTURAL SPRAY OIL

R.J. Hilton | P.H. Westigard

66. CHECKMATE CM FOR CONTROL OF CODLING MOTH IN PEARS

Janice M. Gillespie

67. CONTAMINATION OF HARVEST BINS WITH PEAR DECAY FUNGI AND EVALUATION OF DISINFESTANTS ON PLASTIC AND WOOD BIN MATERIAL

R.A. Spotts | L.A. Cervantes

68. REDUCING SCALD IN ‘RED D’ANJOU’ PEARS WITH HOT WATER AND REDUCED RATES OF ETHOXYQUIN

E. Curry

69. ELEVATED CARBON DIOXIDE STORAGE OF ‘ANJOU’ PEARS

S. R. Drake

70. INTEGRATION OF CULTURAL AND BIOLOGICAL METHODS FOR CONTROL OF POSTHARVEST DECAY IN ‘BOSC’ PEARS

D. Sugar | R.G. Roberts | T.L. Righetti | E.E. Sanchez

71. POLYAMINES AND ETHYLENE BIOSYNTHESIS ENZYMES IN PEAR FRUITS: CHANGES IN S-ADENOSYL METHIONINE DECARBOXYLASE AND ACC SYNTHASE ACTIVITIES IN CHILLING SATISFIED RIPENING PACKHAM’S TRIUMPH PEAR FRUITS.

A. Toumadje | Daryl G. Richardson

72. SENSORY EVALUATION OF PEARS

F. Kappel | E. Hogue | B. Fisher-Fleming

73. RIPENING BEHAVIOR OF ‘GEBHARD’ STRAIN OF RED ‘D’ANJOU’ PEARS AFTER COLD STORAGE AS INFLUENCED BY HARVEST MATURITY AND ETHYLENE

Paul M. Chen | Diane M. Varga | T. J. Facteau

74. RIPENING BEHAVIOR AND FRUIT QUALITY OF ‘BOSC’ PEARS STORED IN AIR OR STEP-WISE LOW OXYGEN STORAGE

Paul M. Chen | Diane M. Varga

75. LOW OXYGEN CONTROLLED ATMOSPHERE STORAGE OF RED PEARS

Daryl G. Richardson | D. Kling | D. Sugar