Studies on the nature of the incompatibility in a cucurbitaceous graft

H.C.M. de Stigter

Research output: Thesisinternal PhD, WU

Abstract

Musk melon (M), cucumber (C) and Cucurbita ficifolia (F) could succesfully be grafted in all single combinations, except for M/F which required foliage on the stock to survive. Defoliation of this stock caused the plant to wilt and die, generally in 4-5 days; necrosis started in the stock: a rapid and specific collapse of its sieve tubes occurred before any visible symptom was evident in the melon scion. With stock foliage present, a good union between xylem and phloem of the partners was formed.

Growth and other phenomena reacted strongly to the number of leaves on a stock. The effect of these leaves depended largely on light intensity. M/F plants could recover from advanced stages of incompatibility, by renewed contact with leaves of the stock species.

From these and experiments with double grafting it was concluded that the stock leaves provided the stock with some specific substance (enzymic or hormonal) enabling the stock phloem to function normally.

Shortage or complete absence of this substance might have influenced some enzymic process in the complex of sieve tube and companion cell, upsetting metabolism as shown by local accumulation of starch. The stock leaves depended on root vitality, which in turn was determined by interaction with the scion. The growth-regulating activity of the stock leaves thus proved to be connected with the nature of the interactions between M and F.

Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
Supervisors/Advisors
  • Wellensiek, S.J., Promotor
Award date13 Jun 1956
Place of PublicationWageningen
Publisher
Publication statusPublished - 1956
Externally publishedYes

Fingerprint

graft compatibility
leaves
sieve tubes
scions
melons
phloem
Cucurbita ficifolia
phloem companion cells
grafting (plants)
defoliation
signs and symptoms (plants)
cucumbers
xylem
light intensity
necrosis
starch
metabolism

Keywords

  • cucurbitaceae
  • cucumis melo
  • melons
  • cucurbita
  • pumpkins
  • cucumis sativus
  • cucumbers
  • plant physiology
  • cum laude

Cite this

de Stigter, H. C. M. (1956). Studies on the nature of the incompatibility in a cucurbitaceous graft. Wageningen: Veenman.
de Stigter, H.C.M.. / Studies on the nature of the incompatibility in a cucurbitaceous graft. Wageningen : Veenman, 1956. 51 p.
@phdthesis{1e8de0abcbc542b3a6ec604926de4834,
title = "Studies on the nature of the incompatibility in a cucurbitaceous graft",
abstract = "Musk melon (M), cucumber (C) and Cucurbita ficifolia (F) could succesfully be grafted in all single combinations, except for M/F which required foliage on the stock to survive. Defoliation of this stock caused the plant to wilt and die, generally in 4-5 days; necrosis started in the stock: a rapid and specific collapse of its sieve tubes occurred before any visible symptom was evident in the melon scion. With stock foliage present, a good union between xylem and phloem of the partners was formed.Growth and other phenomena reacted strongly to the number of leaves on a stock. The effect of these leaves depended largely on light intensity. M/F plants could recover from advanced stages of incompatibility, by renewed contact with leaves of the stock species.From these and experiments with double grafting it was concluded that the stock leaves provided the stock with some specific substance (enzymic or hormonal) enabling the stock phloem to function normally.Shortage or complete absence of this substance might have influenced some enzymic process in the complex of sieve tube and companion cell, upsetting metabolism as shown by local accumulation of starch. The stock leaves depended on root vitality, which in turn was determined by interaction with the scion. The growth-regulating activity of the stock leaves thus proved to be connected with the nature of the interactions between M and F.",
keywords = "cucurbitaceae, cucumis melo, meloenen, cucurbita, pompoenen, cucumis sativus, komkommers, plantenfysiologie, cucurbitaceae, cucumis melo, melons, cucurbita, pumpkins, cucumis sativus, cucumbers, plant physiology, cum laude",
author = "{de Stigter}, H.C.M.",
note = "WU thesis 208 Proefschrift Wageningen",
year = "1956",
language = "English",
publisher = "Veenman",
school = "Wageningen University",

}

de Stigter, HCM 1956, 'Studies on the nature of the incompatibility in a cucurbitaceous graft', Doctor of Philosophy, Wageningen University, Wageningen.

Studies on the nature of the incompatibility in a cucurbitaceous graft. / de Stigter, H.C.M.

Wageningen : Veenman, 1956. 51 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - Studies on the nature of the incompatibility in a cucurbitaceous graft

AU - de Stigter, H.C.M.

N1 - WU thesis 208 Proefschrift Wageningen

PY - 1956

Y1 - 1956

N2 - Musk melon (M), cucumber (C) and Cucurbita ficifolia (F) could succesfully be grafted in all single combinations, except for M/F which required foliage on the stock to survive. Defoliation of this stock caused the plant to wilt and die, generally in 4-5 days; necrosis started in the stock: a rapid and specific collapse of its sieve tubes occurred before any visible symptom was evident in the melon scion. With stock foliage present, a good union between xylem and phloem of the partners was formed.Growth and other phenomena reacted strongly to the number of leaves on a stock. The effect of these leaves depended largely on light intensity. M/F plants could recover from advanced stages of incompatibility, by renewed contact with leaves of the stock species.From these and experiments with double grafting it was concluded that the stock leaves provided the stock with some specific substance (enzymic or hormonal) enabling the stock phloem to function normally.Shortage or complete absence of this substance might have influenced some enzymic process in the complex of sieve tube and companion cell, upsetting metabolism as shown by local accumulation of starch. The stock leaves depended on root vitality, which in turn was determined by interaction with the scion. The growth-regulating activity of the stock leaves thus proved to be connected with the nature of the interactions between M and F.

AB - Musk melon (M), cucumber (C) and Cucurbita ficifolia (F) could succesfully be grafted in all single combinations, except for M/F which required foliage on the stock to survive. Defoliation of this stock caused the plant to wilt and die, generally in 4-5 days; necrosis started in the stock: a rapid and specific collapse of its sieve tubes occurred before any visible symptom was evident in the melon scion. With stock foliage present, a good union between xylem and phloem of the partners was formed.Growth and other phenomena reacted strongly to the number of leaves on a stock. The effect of these leaves depended largely on light intensity. M/F plants could recover from advanced stages of incompatibility, by renewed contact with leaves of the stock species.From these and experiments with double grafting it was concluded that the stock leaves provided the stock with some specific substance (enzymic or hormonal) enabling the stock phloem to function normally.Shortage or complete absence of this substance might have influenced some enzymic process in the complex of sieve tube and companion cell, upsetting metabolism as shown by local accumulation of starch. The stock leaves depended on root vitality, which in turn was determined by interaction with the scion. The growth-regulating activity of the stock leaves thus proved to be connected with the nature of the interactions between M and F.

KW - cucurbitaceae

KW - cucumis melo

KW - meloenen

KW - cucurbita

KW - pompoenen

KW - cucumis sativus

KW - komkommers

KW - plantenfysiologie

KW - cucurbitaceae

KW - cucumis melo

KW - melons

KW - cucurbita

KW - pumpkins

KW - cucumis sativus

KW - cucumbers

KW - plant physiology

KW - cum laude

M3 - internal PhD, WU

PB - Veenman

CY - Wageningen

ER -

de Stigter HCM. Studies on the nature of the incompatibility in a cucurbitaceous graft. Wageningen: Veenman, 1956. 51 p.