Theme 12: Forage Breeding and Genetics
Description
The main aim of the study was to analyse chlorophyll a + b content (SPAD values) determined by portable chlorophyllmeter (SPAD- 502, Minolta, Japan) and crude protein content in leaves of timothy, coocksfoot, perennial ryegrass and meadow fescue (total 24 cultivars). Differences between both parameters were confirmed and a close relationship between chlorophyll content (SPAD values) and crude protein concentration was found. Correlation coefficient between SPAD and crude protein varied from 0.541++ for ryegrass to 0.906++ for timothy. This fact should be used for selection of grasses with higher crude protein content and/or better use of mineral soil nitrogen.
Citation
Gáborèík, N., "Chlorophyll Concentration (Spad Values) as an Indicator of Crude Protein Content and as a Selection Criterion in Grass Breeding" (2021). IGC Proceedings (1993-2023). 8.
https://uknowledge.uky.edu/igc/19/12/8
Included in
Chlorophyll Concentration (Spad Values) as an Indicator of Crude Protein Content and as a Selection Criterion in Grass Breeding
The main aim of the study was to analyse chlorophyll a + b content (SPAD values) determined by portable chlorophyllmeter (SPAD- 502, Minolta, Japan) and crude protein content in leaves of timothy, coocksfoot, perennial ryegrass and meadow fescue (total 24 cultivars). Differences between both parameters were confirmed and a close relationship between chlorophyll content (SPAD values) and crude protein concentration was found. Correlation coefficient between SPAD and crude protein varied from 0.541++ for ryegrass to 0.906++ for timothy. This fact should be used for selection of grasses with higher crude protein content and/or better use of mineral soil nitrogen.
