Influence of environmental conditions on the chrysanthemum leaf yellow spot - Measurement of the leaf yellow spot at early stage

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In recent years, yellow spots appear on the leaf of chrysanthemums in many species, which brought commercial problems. The purpose of this study is to examine the measurement of the spot in order to make the influence of environmental conditions clear. Image instrumentation with transmitted light made possible to measure the spot at early stage, which was difficult for reflected light. The method is used the gap of the light quantity between the spot and others. It is involved in chlorophylls and the use of the suitable light color make measuring easy. The portable device using this method was produced experimentally and leaf yellow spot was measured with this device, which brought the basic data, the state get worse with time and the relationship between the spot and environmental conditions.

Original languageEnglish
Title of host publicationIFAC Proceedings Volumes (IFAC-PapersOnline)
PublisherIFAC Secretariat
Volume1
EditionPART 1
Publication statusPublished - 2013
Event2013 IFAC Bio-Robotics Conference, IFAC BioRobotics 2013 - Sakai, Japan
Duration: Mar 27 2013Mar 29 2013

Other

Other2013 IFAC Bio-Robotics Conference, IFAC BioRobotics 2013
CountryJapan
CitySakai
Period3/27/133/29/13

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Chlorophyll
Color

Keywords

  • Chlorophyll
  • Chrysanthemum
  • Environmental condition
  • Image processing
  • Leaf yellow spot
  • LED
  • Transmitted light

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Eguchi, N., Namba, K., Monta, M., & Goto, T. (2013). Influence of environmental conditions on the chrysanthemum leaf yellow spot - Measurement of the leaf yellow spot at early stage. In IFAC Proceedings Volumes (IFAC-PapersOnline) (PART 1 ed., Vol. 1). IFAC Secretariat.

Influence of environmental conditions on the chrysanthemum leaf yellow spot - Measurement of the leaf yellow spot at early stage. / Eguchi, Naoki; Namba, Kazuhiko; Monta, Mitsuji; Goto, Tanjuro.

IFAC Proceedings Volumes (IFAC-PapersOnline). Vol. 1 PART 1. ed. IFAC Secretariat, 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Eguchi, N, Namba, K, Monta, M & Goto, T 2013, Influence of environmental conditions on the chrysanthemum leaf yellow spot - Measurement of the leaf yellow spot at early stage. in IFAC Proceedings Volumes (IFAC-PapersOnline). PART 1 edn, vol. 1, IFAC Secretariat, 2013 IFAC Bio-Robotics Conference, IFAC BioRobotics 2013, Sakai, Japan, 3/27/13.
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AB - In recent years, yellow spots appear on the leaf of chrysanthemums in many species, which brought commercial problems. The purpose of this study is to examine the measurement of the spot in order to make the influence of environmental conditions clear. Image instrumentation with transmitted light made possible to measure the spot at early stage, which was difficult for reflected light. The method is used the gap of the light quantity between the spot and others. It is involved in chlorophylls and the use of the suitable light color make measuring easy. The portable device using this method was produced experimentally and leaf yellow spot was measured with this device, which brought the basic data, the state get worse with time and the relationship between the spot and environmental conditions.

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