Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Determining the Genetic Control of Common Bean Early-Growth Rate using Unmanned Aerial Vehicles

Version 1 : Received: 18 April 2020 / Approved: 19 April 2020 / Online: 19 April 2020 (01:30:11 CEST)

A peer-reviewed article of this Preprint also exists.

Parker, T.A.; Palkovic, A.; Gepts, P. Determining the Genetic Control of Common Bean Early-Growth Rate Using Unmanned Aerial Vehicles. Remote Sens. 2020, 12, 1748. Parker, T.A.; Palkovic, A.; Gepts, P. Determining the Genetic Control of Common Bean Early-Growth Rate Using Unmanned Aerial Vehicles. Remote Sens. 2020, 12, 1748.

Journal reference: Remote Sens. 2020, 12, 1748
DOI: 10.3390/rs12111748

Abstract

Vigorous early-season growth rate allows crops to compete more effectively against weeds and to conserve soil moisture in arid areas. Many crop species, including common bean, show genetic variation in growth rate between varieties. Despite this, the genetic basis of the early-season growth-related traits has not been well resolved in the species, in part due to historic phenotyping challenges. Using a range of UAV- and ground-based methods, we evaluated early-season growth vigor of two populations. These growth data were then used to find QTLs associated with several growth parameters. Our results suggest that early-season growth rate is the result of complex interactions between several genetic and environmental factors and highlight the need for the high-precision phenotyping provided by UAVs. The QTLs identified in this study are the first in common bean to be identified remotely using UAV technology and will be useful for developing crop varieties that compete with weeds more effectively. Ultimately, this will reduce crop losses and mitigate the need for herbicides and manual labor for weed control.

Subject Areas

growth rate; vigor; UAV; sUAS; organic; weed competitiveness; Phaseolus vulgaris

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