Leaf relative chlorophyll content as an indicator parameter to predict nitrogen fertilization in maize

Leaf relative chlorophyll content as an indicator parameter to predict nitrogen fertilization in maize

This manuscript was extracted from the first author’s Thesis in Crop Science. Engenheiro Agrônomo, Doutor, Desenvolvimento de Produtos Syngenta Seeds Ltda. Av. Bento Gonçalves, 7712, 90001-970, Porto Alegre, RS. Departamento de Plantas de Lavoura. E.mail: [email protected]. Corresponding author. Engenheiro Agrônomo, Doutor, Professor, Departamento de Plantas de Lavoura da Faculdade de...

Non-destructive determination of maize leaf and canopy chlorophyll content.

The objective of this study was to develop a rapid non-destructive technique to estimate total chlorophyll (Chl) content in a maize canopy using Chl content in a single leaf. The approach was (1) to calibrate and validate a reflectance-based non-destructive technique to estimate leaf Chl in maize; (2) to quantify the relative contribution of each leaf Chl to the total Chl in the canopy; and (3)...

Leaf Photosynthetic Capacity, Chlorophyll Content, and Specific Leaf Nitrogen Relationships in Sunflower Crops Prior to Anthesis

Remotely Measuring Chlorophyll Content in Corn Leaves with Differing Nitrogen Levels and Relative Water Content

A plant’s photosynthetic potential is directly proportional to the quantity of chlorophyll present in the leaf Measuring a crop’s physiological parameters provides information tissue. Rapid estimates of photosynthetic potential can for interpreting its response to the environment. Remote sensing is quickly becoming recognized as a valuable tool that has the potential be important for studies of...

Remote estimation of nitrogen and chlorophyll contents in maize at leaf and canopy levels

Leaf and canopy nitrogen (N) status relates strongly to leaf and canopy chlorophyll (Chl) content. Remote sensing is a tool that has the potential to assess N content at leaf, plant, field, regional and global scales. In this study, remote sensing techniques were applied to estimate N and Chl contents of irrigated maize (Zea mays L.) fertilized at five N rates. Leaf N and Chl contents were dete...