Laser-induced chlorophyll fluorescence sensing to determine biomass and nitrogen uptake of winter wheat under controlled environment and field conditions

C. Bredemeier; U. Schmidhalter

Laser-induced chlorophyll fluorescence sensing to determine biomass and nitrogen uptake of winter wheat under controlled environment and field conditions

In: Precision Agriculture â05

Authors:

C. Bredemeier

C. Bredemeier Technical University Munich, Chair of Plant Nutrition, Freising, Germany bredemei@wzw.tum.de, schmidhalter@wzw.tum.de

Search for other papers by C. Bredemeier in
Current site
Google Scholar
PubMed

and

U. Schmidhalter

U. Schmidhalter Technical University Munich, Chair of Plant Nutrition, Freising, Germany bredemei@wzw.tum.de, schmidhalter@wzw.tum.de

Search for other papers by U. Schmidhalter in
Current site
Google Scholar
PubMed

Type:: Chapter

Pages:: 273â280

DOI:: https://doi.org/10.3920/978-90-8686-549-9_034

Purchase instant access (PDF download and unlimited online access):

â¬42.00â¬35.00Â excl. VAT

Add to Cart

Redeem Access Token

The relationship between laser-induced chlorophyll fluorescence intensity (690 nm and 730 nm), ratio F690/F730 and nitrogen supply in winter wheat was characterized using two different sensors (growth chamber and field sensor). In the field, chlorophyll fluorescence was measured at a distance of approximately 3.3 m from the canopy and the sensed area was approximately 6-7 m². The fluorescence ratio F690/F730 was inversely correlated with N content and uptake and dry shoot biomass. Shoot dry biomass could be determined by means of biomass index measurements independent of leaf chlorophyll content. The results indicated that nitrogen uptake and biomass can be reliably detected through chlorophyll fluorescence measurements under field and controlled growing conditions.

Citation Info

Save
Cite
Email this content

Share link with colleague or librarian

You can email a link to this page to a colleague or librarian:
Email this content
or copy the link directly:

https://brill.edhh.ma/abstract/book/9789086865499/BP000034.xml
The link was not copied. Your current browser may not support copying via this button.

Link copied successfully

Collapse
Expand

Precision Agriculture â05

E-Book ISBN:: 9789086865499

Publisher:: Wageningen Academic

Print Publication Date:: 24 Oct 2005

Subjects
- Life Sciences
  - General
  - Agriculture & Environment

Metrics

	All Time	Past 365 days	Past 30 Days
Abstract Views	84	47	6
Full Text Views	5	0	0
PDF Views & Downloads	3	0	0

African Studies	Education	Media Studies
American Studies	History	Middle East and Islamic Studies
Ancient Near East and Egypt	Human Rights and Humanitarian Law	Musicology
Art History	International Law	Philosophy
Asian Studies	International Relations	Religious Studies
Biblical Studies	Jewish Studies	Slavic and Eurasian Studies
Biology	Languages and Linguistics	Social Sciences
Book History and Cartography	Life Sciences	Theology and World Christianity
Classical Studies	Literature and Cultural Studies

Subjects

Authors

Open Access

Product Information

Company

Contact

Laser-induced chlorophyll fluorescence sensing to determine biomass and nitrogen uptake of winter wheat under controlled environment and field conditions

Citation Info

Share link with colleague or librarian

Precision Agriculture â05

Table of Contents

Metrics

Metrics

Precision Agriculture â05