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Articles

A QUICK SAPTEST AS A TOOL TO CONTROL THE QUALITY OF SOME VEGETABLE CROPS

Article number

220_39

Pages

289 – 296

Language

Abstract

A simple and rapid procedure for determination of nitrate in petiole sap_* is presented.
Nitrate concentration was measured using Merckoquant strips which were found to be quite accurate.
There was a strong response of the test to nitrogen supply in all trials.
Sap nitrate concentration gave a good indication of current N nutrition of celery and spinach.
The rapid and simple nitrate saptest can be used to detect N-deficiency as well as accumulation of NO₃^– in celery and spinach and thus to control the quality of some vegetable crops.

Publication

I International Symposium on Vegetables for Processing

Authors

K. VLASSAK, K.U. Leuven, J. VERMEULEN, K.U. Leuven

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1988.220.39

Online Articles (74)

2. IMPORTANCE AND POSSIBILITIES OF PROCESSING VEGETABLE GROWING IN HUNGARY

L. Papócsi

3. VEGETABLES FOR PROCESSING: NEW DEVELOPMENT AND CONCERNS FOR THE FUTURE

J.F. Kelly

4. RECENT ADVANCES IN EFFICIENCY OF VEGETABLE GROWING IN INDIA

K.S. Randhawa

5. DEVELOPMENT AND TRENDS IN THE HUNGARIAN CANNING INDUSTRY

L. Toma

6. VEGETABLE PROCESSING IN COOPERATIVES

Gy. Horváth

7. SWEDISH EXPERIENCES ON FARMERS – PROCESSORS RELATIONSHIP

L. Ottosson

8. VEGETABLE PRODUCTION CONTROLLED BY A COMPUTER-AIDED INTEGRATED INFORMATION SYSTEM

I. Nattán

9. EFFECT OF SPECIFIC CULTURAL AND TECHNOLOGICAL FACTORS ON YIELD FORMATION IN ONION

H. Fröhlich | B. Gutezeit

10. BREEDING FOR TOMATO FRUIT QUALITY

J. Farkas

11. BREEDING STUDIES OF SOME CHARACTERS IN TOMATO, LYCOPERSICON ESCULENTUM MILL.

R.M. Khalil | A.A. Midan | A.K. Hatem

12. EARLY SEEDLING GROWTH, YIELD COMPONENTS AND FRUIT CHEMICAL COMPOSITION OF HIGH-PIGMENT PROCESSING TOMATO LINES

T. MOCHIZUKI | D. ISHIUCHI | S. KAMIMURA

13. PROCESSING TOMATO: A BREEDING PROGRAM IN EMILIA-ROMAGNA

S. Conti | V. Tisselli

14. WINTER CULTIVARS OF PEAS FOR PROCESSING

I. Djinovic | N. Marinkovic

15. PEA BREEDING FOR PROCESSING IN BULGARIA

E. Uzunova | H. Manuelyan | Y. Lichev

16. THE ROLE OF RESISTANCE IN THE UP TO DATE BEAN /PHASEOLUS VULGARIS L./ SORTIMENT

I. Velich | J. Szarka | I. Horváth

17. INTRODUCED CUCUMBER CULTIVARS RELATIVELY RESISTANT TO PSEUDOPERONOSPORA CUBENSIS IN BULGARIA

S. Neykov | D. Dobrev

18. IMPROVING THE PROCESSING QUALITY OF PARTHENOCARPIC PICKLING CUCUMBERS

S.B. Körösné | P. Milotay

19. THE PRESENT SITUATION AND FUTURE DEVELOPMENT IN BREEDING OF PARTHENOCARPIC PICKLING CUCUMBER

L.A.M. Zwinkels

20. BREEDING PICKLING MELONS FOR CONCENTRATED YIELDS

H. Nerson | H.S. Paris | Z. Karchi | M. Edelstein | Y. Burger

21. QUALITY BREEDING IN SWEET CORN

L. Daniel | I. Bajtay | I. Gulyásné

22. CULTIVAR TRIALS OF PICKLING ONION IN SOUTHERN ITALY

V. Miccolis | P. Montemurro

23. GENERAL CHARACTERS OF SPINACH VARIETIES SUITABLE FOR INDUSTRIAL PROCESSING

M. Djurovka | B. Lazic | V. Markovic

24. CULTURAL PRACTICES FOR MAXIMIZING YIELD AND QUALITY OF VEGETABLES FOR PROCESSING

Dale W. Kretchman

25. THE POTENTIAL FOR SEED, SOWING AND SEEDBED PREPARATION TREATMENTS TO IMPROVE THE PRODUCTION OF UNIFORMLY-SIZED CARROT ROOTS FOR PROCESSING

W.E. Finch-Savage

26. SEEDBED PREPARATION AND SMALL VEGETABLE SEED SOWING BY COMBINED OPERATIONS

S. Tatár

27. INDUSTRIAL TRANSPLANT-PRODUCTION FOR VEGETABLE PROCESSING BY THE CULTOPLANT-SYSTEM

E. Fölster

28. FIELD SURVIVAL AND ESTABLISHMENT OF TOMATO TRANSPLANTS OF VARIOUS AGE AND SIZE

A. Liptay

29. REVIEW OF TRANSITIONAL DEVELOPMENT OF PROCESSING TOMATO TRANSPLANT PRODUCTION AND/OR USE IN ONTARIO, CANADA

A. Liptay

30. REGULATOR IN THE SEED PRODUCTION OF HYBRID F₁ OF MUSK-AND WATER-MELON

K. Andrasek

31. PLANT SPACING: KEY TO GREATER PROCESS VEGETABLE CROP PRODUCTIVITY.

M.A. Nichols

32. EFFECT OF PLANT DENSITY ON YIELD AND QUALITY OF TRANSPLANT TOMATOES

J. Rumpel | I. Babik

33. EFFECT OF PLANT SPACING OF AUTUMN CAULIFLOWER ON HEAD SIZE, CURD YIELD AND QUALITY FOR PROCESSING

J.D. Whitwell | D. Senior

34. INFLUENCE OF PHOSPHORUS FERTILIZATION AND AVAILABILITY ON GROWING AND PRODUCTION OF SOWN TOMATOES

Y. Dumas

35. EFFECT OF DIFFERENT LEVELS OF NPK FERTILIZER ON GROWTH AND YIELD OF TWO SUMMER SQUASH CULTIVARS

F.A. Al-Mukhtar | F.M. Hummadi | F.H. Al-Sahaf

36. GROWTH AND NUTRIENT UPTAKE OF TWO TOMATO CULTIVARS FOR MECHANICAL HARVESTING

R. Tesi | L. Giustiniani

37. VARIATION IN MACRONUTRIENT CONTENTS IN PEAS FOR PROCESSING

M.E. Saraiva Ferreira

38. ON BIOLOGICAL REMOVAL OF NUTRIENTS WITH GREEN PEA YIELD

V. Rankov | E. Uzunova

39. A COMPARISON OF THE EFFECTS OF RESIDUAL AND FRESHLY APPLIED FERTILIZER ON THE GROWTH AND YIELD OF DWARF FRENCH BEANS (PHASEOLUS VULGARIS)

P.A. Costigan

40. A QUICK SAPTEST AS A TOOL TO CONTROL THE QUALITY OF SOME VEGETABLE CROPS

K. VLASSAK | K.U. Leuven | J. VERMEULEN | K.U. Leuven

41. EFFECT OF INCREASING NITROGEN DOSES ON YIELD AND QUALITY OF SPINACH

V. Markovic | B. Lazic | M. Djurovka

42. THE EFFECT OF N SUPPLY ON THE NITRATE, SUGAR AND CAROTENE CONTENT OF CARROTS

I. Cserni | K. Prohászka

43. “PILLOWY”, A CALCIUM-RELATED FRUIT DISORDER IN PROCESSING CUCUMBER

Jack E. Staub | P. Rousos | B. Esther Struckmeyer

44. THE ROLE OF IRRIGATION IN THE PRODUCTION OF CANNING INDUSTRY VEGETABLES

L. Cselötei

45. THE INFLUENCE OF THE IRRIGATION ON THE YIELD MASSES AND THE QUALITY OF TOMETOES AT DIFFERENT LEVELS OF NUTRIMENTS

L. Géczi

46. INFLUENCE OF MATURITY AND SOWING DATE ON YIELD AND QUALITY OF GREEN BEANS

I.B. Poryazov | S.I. Velev

47. VEGETATIVE AND GENERATIVE DEVELOPMENT OF PICKLING CUCUMBERS INFLUENCED BY WEATHER CONDITIONS

M. Cerne

48. EXAMINATION UPON THE EFFICIENCY OF THE IRRIGATION OF GREENPEA

I. Rédai

49. THE POSSIBILITY OF DETERMINING IRRIGATION REQUIREMENTS BY MEANS OF PLANT TEMPERATURE

L. Cselötei | L. Helyes

50. THE EFFECT OF IRRIGATION ON THE QUALITY OF PROCESSING TOMATOES

Gy. Varga

51. PROBABILITY AND EXPECTED EFFECTS OF TOMATO IRRIGATION IN HUNGARY

L. Cselötei | Gy. Varga

52. IRRIGATION PECULIARITIES OF SPRING AND SUMMER SNAP BEANS

G. Varga | O. Koszegi

53. THE EFFECT OF IRRIGATION ON THE QUALITY AND HARVEST TIME OF SNAP BEANS

L. Cselotei | Gy. Varga

54. PROBLEMS OF REPEATED PESTICIDE APPLICATIONS CAUSING CUMULATIVE RESIDUE SITUATIONS

C. Van Assche

55. THE IMPORTANCE OF SEED CONTROL AND SEED TREATMENT FOR A GUARANTEED PLANT PRODUCTION

C. Van Assche | K.U. Leuven

56. TOMATO SEED TREATMENT POSSIBILITIES AGAINST SEED BORNE DISEASES

Zs. Basky | I. Aponyi

57. THE OVARY MOULDING DISEASE OF TOMATO-SHAPED PEPPER AND CONTROL POSSIBILITES

I. Aponyi | O. Kujáni | B. B. A. Varga

58. NEW HERBICIDES FOR VEGETABLE PRODUCTION ON PEAT SOIL

Thomas A. Bewick | Bruce A. Michaelis | Larry K. Binning | Robert L. Hughes

59. EFFECT OF WEED CONTROL ON THE DIVERSITY AND ABUNDANCE OF INSECTS IN POTATOES

S. Ashour Ahmed | A.W.M. Ali | A.M. Salman

60. INFLUENCE OF PROVENANCE AND HARVEST DATE ON SOME QUALITY PROPERTIES OF HORSE RADISH (ARMORACIA RUSTICANA PH. GAERTN. B. MEY. ET SCHERB.) FOR PRESERVATION PURPOSES

D. Fritz | J. Weichmann | H. Nebel

61. EFFECT OF TITAVIT TREATMENT ON THE DYNAMICS OF TOMATO FRUIT RIPENESS

P.A. Biacs | H.G. Daood | B. Czinkotai | F. Hajdu | N. Kiss-Kutz

62. EVALUATION OF SOME NEW TOMATO CULTIVARS I. SOME PHYSICAL AND CHEMICAL PROPERTIES

F.A. El-Wakeil | A.M. Khalaf Allah

63. EVALUATION OF SOME NEW TOMATO CULTIVARS II. SUITABILITY FOR JUICE PRODUCTION

F.A. El-Wakeil | A.M. Khalaf Allah

64. EFFECT OF HARVEST DATE ON YIELD OF PROCESS TOMATOES

A.P. Julian | K.J. Fisher | M.A. Nichols

65. ALTERNATIVE PLANT STRUCTURES FOR MECHANICAL HARVESTING IN PROCESSING TOMATO /LYCOPERSICON ESCULENTUM MILL./

M.C. Sanguineti | G.P. Soressi

66. QUALITY OF DEEP FROZEN SPINACH AS RELATED TO CULTIVAR FIELD PERFORMANCE

G. Tonini | P. Pasini | L. Dal Re

67. QUALITY OF DEEP FROZEN GREEN BEANS AS RELATED TO CULTIVAR FIELD PERFORMANCE, GROWTH HABIT AND RIPENING.

G. Tonini | P. Pasini | L. Dal Re

68. QUALITATIVE ASPECTS AND SUITABILITY OF SOME VEGETABLES TO QUICK FREEZING

G. Crivelli | E. Senesi | G. Bertolo | A. Maestrelli | F. Mingardo

69. CULTIVARS AND LAND RACES TRIALS ON BROAD BEAN FOR PROCESSING IN SOUTHERN ITALY

V. Miccolis | V.V. Bianco

70. YIELD ANALYSIS OF FRENCH BEANS

E. Nemeskéri

71. COORDINATING THRESHING AND TRANSPORTING OF GREEN PEAS USING VNBC HARVESTER AND IFA W-50/LAZ TRANSPORT VEHICLE

I.F. Nagy

72. STORAGE STUDIES WITH HUNGARIAN PAPRIKA /CAPSICUM ANNUUM L. VAR. ANNUUM/ AND CAULIFLOWER /BRASSICA CRETICA CONVAR. BOTRYTIS/ USED FOR PRESERVATION

T. Sáray

73. YIELD AND SOME QUALITY PROPERTIES OF BRUSSELS SPROUTS AS AFFECTED BY TIME OF HARVEST AND CULTIVAR

I. Babik

74. CONNECTIONS OF CRITICAL STRESS AND DAMAGE IN THE MECHANIZED CULTIVATION AND HARVESTING OF CUCUMBER

A.Z. Horváth