Abstract
Leaves, formed at later developmental stage, in barley genotypes native to Syria are lighter green than those adapted to wetter areas. In the present study, six barley genotypes were objectively assessed for leaf colour throughout a cropping season. Leaf colour was measured by using a chroma meter. The L* a* and b* axes provide a three-dimentional coordinate space of colour that relates to human perception. L* measures psychrometric lightness. The a* axis transects the red and green hues, while the b* axis transects the blue and yellow hues. Syrian landraces showed considerably higher L* indicating that they have a lighter leaf colour. They had higher a* and lower b* values than those of dark-green group until February, and then turned to lower a* and higher b* values thereafter. This indicated ťhe leaves of Syrian landraces had lesser green and yellow hue in winter than in spring. The relationship between leaf-colour variables and the photosynthetic electron transport rates were also explored both in winter and in spring. It is considered that low chlorophyll content and/or higher chlorophyll a/b reduces the risk of damage from photoinhibition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.