Analysis of chlorophyll content in a bread wheat collection and its correlations with flowering time and grain yield

Abstract

Chlorophyll content has been used to assess crop nitrogen status, level of abiotic and biotic stress and predict yield. The aim of this study was to determine the level of chlorophyll content in a collection of 100 bread wheat genotypes originating from Europe, Asia and America, and analyse its correlations with flowering time and grain yield. Bread wheat genotypes from the Institute of Field and Vegetable Crops in Novi Sad, Serbia were analysed for relative chlorophyll content, flowering time and grain yield in a field trial at an experimental site at Rimski šančevi using a completely randomised block experiment design with three replications during 2018/2019. The relative content of chlorophyll index (CCI) was measured with a portable non-destructive clip chlorophyll meter. The number of days to flowering time was calculated from the 1st January to the date when 50% of the plants from the plot have at least one flower. Grain yield was determined at maturity from 5 m2 mechanical harvested plots and calculated at 10% moisture level.