Some aspects of mineral nutrition and flowering

E.I. El Hinnawy

Research output: Thesisinternal PhD, WU

Abstract

In mustard N deficiency accelerated flower initiation and particularly flower bud development. Excess N delayed flowering but increased number of flowers. Of other elements Ca influenced flowering most.

Dill developed its flowers most rapidly with normal or high rates of N. N deficiency retarded flowering and decreased the number of inflorescenses.

In spinach N rate only slightly influenced flowering. N deficiency retarded flower budding by a few days.

Perilla crispa reacted most to N and P. Except where N was in excess (2N), the time required for appearance and development of flower buds was negatively correlated with the N concentration, while the number of flowers was positively correlated with it. P deficiency delayed flowering and decreased the number of flowers.

With Kalanchoë blossfeldiana N increased the number of flowers and accelerated flowering.

Mineral nutrition had only quantitative influences on the photoperiodic behaviour of the crops studied.

It was concluded that the effect of minerals on the flowering process of LD (mustard, dill and spinach) and SD plants (Perilla and Kalanchoë) was indirect, through their effect on synthesis of material for flower bud formation, on auxin production and hence on growth.

Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
Supervisors/Advisors
  • Wellensiek, S.J., Promotor
Award date15 Jun 1956
Place of PublicationWageningen
Publisher
Publication statusPublished - 1956
Externally publishedYes

Fingerprint

plant nutrition
flowering
flowers
dill
Perilla
buds
mustard (condiment)
spinach
auxins
minerals
synthesis
crops

Keywords

  • plant physiology
  • plant development
  • flowers
  • flowering
  • plant nutrition
  • nutrients

Cite this

El Hinnawy, E. I. (1956). Some aspects of mineral nutrition and flowering. Wageningen: Veenman.
El Hinnawy, E.I.. / Some aspects of mineral nutrition and flowering. Wageningen : Veenman, 1956. 51 p.
@phdthesis{0669f98917f04e96a3566560d0e8330e,
title = "Some aspects of mineral nutrition and flowering",
abstract = "In mustard N deficiency accelerated flower initiation and particularly flower bud development. Excess N delayed flowering but increased number of flowers. Of other elements Ca influenced flowering most.Dill developed its flowers most rapidly with normal or high rates of N. N deficiency retarded flowering and decreased the number of inflorescenses.In spinach N rate only slightly influenced flowering. N deficiency retarded flower budding by a few days.Perilla crispa reacted most to N and P. Except where N was in excess (2N), the time required for appearance and development of flower buds was negatively correlated with the N concentration, while the number of flowers was positively correlated with it. P deficiency delayed flowering and decreased the number of flowers.With Kalancho{\"e} blossfeldiana N increased the number of flowers and accelerated flowering.Mineral nutrition had only quantitative influences on the photoperiodic behaviour of the crops studied.It was concluded that the effect of minerals on the flowering process of LD (mustard, dill and spinach) and SD plants (Perilla and Kalancho{\"e}) was indirect, through their effect on synthesis of material for flower bud formation, on auxin production and hence on growth.",
keywords = "plantenfysiologie, plantenontwikkeling, bloemen, bloei, plantenvoeding, voedingsstoffen, plant physiology, plant development, flowers, flowering, plant nutrition, nutrients",
author = "{El Hinnawy}, E.I.",
note = "WU thesis 209 Proefschrift Wageningen",
year = "1956",
language = "English",
publisher = "Veenman",
school = "Wageningen University",

}

El Hinnawy, EI 1956, 'Some aspects of mineral nutrition and flowering', Doctor of Philosophy, Wageningen University, Wageningen.

Some aspects of mineral nutrition and flowering. / El Hinnawy, E.I.

Wageningen : Veenman, 1956. 51 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - Some aspects of mineral nutrition and flowering

AU - El Hinnawy, E.I.

N1 - WU thesis 209 Proefschrift Wageningen

PY - 1956

Y1 - 1956

N2 - In mustard N deficiency accelerated flower initiation and particularly flower bud development. Excess N delayed flowering but increased number of flowers. Of other elements Ca influenced flowering most.Dill developed its flowers most rapidly with normal or high rates of N. N deficiency retarded flowering and decreased the number of inflorescenses.In spinach N rate only slightly influenced flowering. N deficiency retarded flower budding by a few days.Perilla crispa reacted most to N and P. Except where N was in excess (2N), the time required for appearance and development of flower buds was negatively correlated with the N concentration, while the number of flowers was positively correlated with it. P deficiency delayed flowering and decreased the number of flowers.With Kalanchoë blossfeldiana N increased the number of flowers and accelerated flowering.Mineral nutrition had only quantitative influences on the photoperiodic behaviour of the crops studied.It was concluded that the effect of minerals on the flowering process of LD (mustard, dill and spinach) and SD plants (Perilla and Kalanchoë) was indirect, through their effect on synthesis of material for flower bud formation, on auxin production and hence on growth.

AB - In mustard N deficiency accelerated flower initiation and particularly flower bud development. Excess N delayed flowering but increased number of flowers. Of other elements Ca influenced flowering most.Dill developed its flowers most rapidly with normal or high rates of N. N deficiency retarded flowering and decreased the number of inflorescenses.In spinach N rate only slightly influenced flowering. N deficiency retarded flower budding by a few days.Perilla crispa reacted most to N and P. Except where N was in excess (2N), the time required for appearance and development of flower buds was negatively correlated with the N concentration, while the number of flowers was positively correlated with it. P deficiency delayed flowering and decreased the number of flowers.With Kalanchoë blossfeldiana N increased the number of flowers and accelerated flowering.Mineral nutrition had only quantitative influences on the photoperiodic behaviour of the crops studied.It was concluded that the effect of minerals on the flowering process of LD (mustard, dill and spinach) and SD plants (Perilla and Kalanchoë) was indirect, through their effect on synthesis of material for flower bud formation, on auxin production and hence on growth.

KW - plantenfysiologie

KW - plantenontwikkeling

KW - bloemen

KW - bloei

KW - plantenvoeding

KW - voedingsstoffen

KW - plant physiology

KW - plant development

KW - flowers

KW - flowering

KW - plant nutrition

KW - nutrients

M3 - internal PhD, WU

PB - Veenman

CY - Wageningen

ER -

El Hinnawy EI. Some aspects of mineral nutrition and flowering. Wageningen: Veenman, 1956. 51 p.