Early detection of nutrient and biotic stress in Phaseolus vulgaris
Early detection of nutrient and biotic stress in Phaseolus vulgaris
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DOI：
10.1080/01431160601024259
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发表时间：
2007-01-01
影响因子：
3.4
通讯作者：
Van Der Straeten, D.
中科院分区：
文献类型：
--
作者：
Chaerle, L.;Hagenbeek, D.;Van Der Straeten, D.
作物高产的先决条件是无病生长和营养均衡供应。在可见光谱中出现症状之前，应激改变生理的早期特征允许及时治疗。在缺镁限制光合作用的条件下，对感染了重要农业灰霉病菌的菜豆进行了胁迫发育的早期检测。在逆境发育过程中，大豆植物通过安装在龙门架机器人系统上的热、视频和叶绿素荧光摄像机进行延时成像监测。对于灰霉病的早期检测，叶绿素荧光成像是最敏感的。这项技术在出现视觉症状前至少三天检测到缺镁。非接触式植物健康监测技术的进一步发展将有助于在温室和田间栽培中实现最佳生产力。建立基于早期症状的压力目录将有助于快速诊断。
Prerequisites for optimal, high crop yield are disease-free growth and an equilibrated supply of nutrients. Early signatures of stress-altered physiology, before appearance of symptoms in the visible spectrum, allow timely treatment. Early detection of stress development was carried out on phaseolus vulgaris bean infected with the agriculturally important grey mould pathogen and under conditions of magnesium deficiency, limiting photosynthesis. During stress development, bean plants were monitored by time-lapse imaging with thermal, video and chlorophyll fluorescence cameras, mounted on a gantry robot system. For early detection of grey mould infection, chlorophyll fluorescence imaging proved to be the most sensitive. This technique detected magnesium deficiency at least three days before visual symptoms appeared. Further development of noncontact technology for plant health monitoring will help to achieve optimal productivity in greenhouse and field cultures. Associated establishment of a stress catalogue based on early symptoms will allow swift diagnosis.