Monitoring plant physiological status is a fundamental tool to understand the relationships among environmental conditions and vegetation productivity and health, especially in Mediterranean areas where the intensity of dry periods is increasing. Therefore, the development of new methods to monitor plant physiology is a key point to strengthen new strategies for forest restoration projects in a context of climate change. The recent availability of Near Infrared (NIR) Consumer Digital cameras has opened the possibility to improve in a costefficient manner the development of new methods to assess plant physiology without sophisticate instruments such as spectrometer and fluorimeter. NIR cameras are recognized by remote sensing communities as a cost‐effective method to monitor vegetation health over large area. Several authors have demonstrated that these cameras provide highly detailed data of single plant in forest monitoring conditions thanks to the times series acquisitions. Therefore, what happen if the NIR Cameras are used to assess the physiological condition of forest seedlings in nursery and in the planting season? The present study aims to test the possibility of monitoring seedlings physiology by NIR camera images (i.e. CANOM S110 NIR) comparing the results with the ones obtained by spectrometer and fluorimeter (i.e. USB‐2000 Ocean Optics and PAM‐2000 Walz). The final objective is to evaluate if in future NIR camera can be a reliable tool to assess seedling physiological status both in nursery and after planting. We carried out two experiments, in greenhouse and in field, on seedlings coming from the same nursery stock grown in 2017. We present the preliminary results of the “speed water‐stress test” under controlled greenhouse conditions by exposing Quercus seedlings (Q. ilex, Q. pubescens, and Q. robur) grown in two substrates (peat and coconut fiber) with three fertilizations (nursery standard; phosphorousenriched; and potassium‐enriched) to three water stress levels: control (fieldcapacity irrigation), medium (50% of control irrigation) and strong (watersuspension).
Is it possible monitoring plant physiological condition with a Near Infrared Consumer digital camera in forest nursery stock? / Francesca Giannetti, Sofia Martini, Sabrina Raddi, Alberto Maltoni, Andrea Tani, Chirici Gherardo, DavideTravaglini, Barbara Mariotti. - STAMPA. - (2018), pp. 56-56. (Intervento presentato al convegno International Conference REFORESTATION CHALLENGES tenutosi a Belgrade, Serbia nel 20‐22 June 2018).
Is it possible monitoring plant physiological condition with a Near Infrared Consumer digital camera in forest nursery stock?
Francesca Giannetti;Sabrina Raddi;Alberto Maltoni;Andrea Tani;Chirici Gherardo;DavideTravaglini;Barbara Mariotti
2018
Abstract
Monitoring plant physiological status is a fundamental tool to understand the relationships among environmental conditions and vegetation productivity and health, especially in Mediterranean areas where the intensity of dry periods is increasing. Therefore, the development of new methods to monitor plant physiology is a key point to strengthen new strategies for forest restoration projects in a context of climate change. The recent availability of Near Infrared (NIR) Consumer Digital cameras has opened the possibility to improve in a costefficient manner the development of new methods to assess plant physiology without sophisticate instruments such as spectrometer and fluorimeter. NIR cameras are recognized by remote sensing communities as a cost‐effective method to monitor vegetation health over large area. Several authors have demonstrated that these cameras provide highly detailed data of single plant in forest monitoring conditions thanks to the times series acquisitions. Therefore, what happen if the NIR Cameras are used to assess the physiological condition of forest seedlings in nursery and in the planting season? The present study aims to test the possibility of monitoring seedlings physiology by NIR camera images (i.e. CANOM S110 NIR) comparing the results with the ones obtained by spectrometer and fluorimeter (i.e. USB‐2000 Ocean Optics and PAM‐2000 Walz). The final objective is to evaluate if in future NIR camera can be a reliable tool to assess seedling physiological status both in nursery and after planting. We carried out two experiments, in greenhouse and in field, on seedlings coming from the same nursery stock grown in 2017. We present the preliminary results of the “speed water‐stress test” under controlled greenhouse conditions by exposing Quercus seedlings (Q. ilex, Q. pubescens, and Q. robur) grown in two substrates (peat and coconut fiber) with three fertilizations (nursery standard; phosphorousenriched; and potassium‐enriched) to three water stress levels: control (fieldcapacity irrigation), medium (50% of control irrigation) and strong (watersuspension).
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