GSTDTAP  > 气候变化
Unmanned aerial vehicles help wheat breeders
admin
2020-09-03
发布年2020
语种英语
国家美国
领域气候变化 ; 地球科学 ; 资源环境
正文(英文)
IMAGE

IMAGE: Margaret Krause operates an unmanned aerial vehicle at the International Maize and Wheat Improvement Center (CIMMYT) in Ciudad Obregón, Mexico. view more 

Credit: José Manuel Reyes Mendoza

Breeding programs for crops with limited per-plant seed yield require one or more generations of seed increase to generate sufficient quantities for sowing replicated yield trials. The ability to accurately discard low potential lines at these early stages may reduce spending on costly yield testing.

Breeders typically rely on visual selection at these stages because extensive measurement of plant traits is difficult due to the large number of lines under evaluation. However, recent advances in remote sensing have made high-throughput data collection increasingly feasible.

Authors of a recent Crop Science article leveraged unmanned aerial vehicles (UAVs) to record the normalized difference vegetation index (NDVI), a measure of plant health, at the seed increase stage of the International Maize and Wheat Improvement Center's (CIMMYT) wheat breeding program. NDVI measurements were heritable and moderately correlated with grain yield, and results showed that selection based on NDVI would have outperformed visual selection.

Harnessing UAV-collected traits to inform selection at the early stages may improve resource-use efficiency in breeding programs and/or increase rates of genetic gain. As remote sensing technologies become increasingly automated and scalable, breeders will have access to comprehensive suites of traits with which to develop integrative selection strategies.

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Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.

URL查看原文
来源平台EurekAlert
文献类型新闻
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/292189
专题气候变化
地球科学
资源环境科学
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admin. Unmanned aerial vehicles help wheat breeders. 2020.
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