文献类型： 会议论文

第一作者： Andreasen C.

作者： Andreasen C. ¹ ; Bitarafan Z. ¹ ; Westergaard J.C. ¹ ;

作者机构： 1.Department of Plant and Environmental Sciences, Crop Sciences, University of Copenhagen, Hojbakkegaard Alle 13, 2630 Taastrup, Denmark

关键词： aerial images;lawns and pastures;image analysis;lodging;seed production

会议名称： Meeting of the EUCARPIA Section Fodder Crops and Amenity Grasses

主办单位：

页码： 309-311

摘要： Red fescue (Festuca rubra} is a grass species used in many different seed mixtures for lawns and pastures. The climate in Denmark is well suited for producing seeds of red fescue. The species is exposed to lodging at flowering, and therefore plant growth regulators (PGRs) are used to prevent lodging at flowering, thereby ensuring sufficient pollination. The objective of this study was to investigate how colour images taken from a drone can be used to estimate the degree of lodging and performance ofthe crop. We established a field experiment in 2014 and studied the lodging in 2017. Four different crop densities and four different PGR applications were applied. The degree of lodging was scored from the ground on a 10-point scale on two dates beforeharvest. Based on the images from the drone, we found a high and positive correlation between the blue intensity of images and lodging. There was a negative correlation between lodging and crop seed yield.

分类号： S812-532