External and internal growth parameters as potential indicators of shake in sweet chestnut (Castanea sativa Mill.)

Mutabaruka, C.; Woodgate, Graham; Buckley, G. P.

doi:10.1093/forestry/cpi016

Cited by 10 publications

(8 citation statements)

References 4 publications

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“…Grafts from sound trees flushed earlier, had marginally larger leaf areas, higher densities of stomata and retained their leaves for longer than those from shaken trees, generally agreeing with observations made on the original trees in the field in 2001 (Mutabaruka et al 2005). Flushing scores taken in 2008 and 2014, four and 11 years respectively after the polythene tunnel experiment, showed that sound grafts still flushed earlier than shaken ones, implying that leaf phenology is under strong genetic control.…”

Section: Phenologysupporting

confidence: 84%

“…As the incidence of shake tended to be greater in older trees (Mutabaruka et al 2005), it was important to test whether responses to water and nutrients was influenced by the physiological age of grafts. The MANOVA analysis, however, showed only marginal effects on age on performance.…”

Section: Physiological Age Of Graft Materialsmentioning

confidence: 99%

“…A trade-off therefore exists between wide-diameter earlywood vessels that transport most water early in the growing season (Corcuera et al 2006) and the risk of embolisms occurring later during drought episodes. The wider vessels associated with shaken chestnut individuals may thus be more prone to blockage by cavitation (Mutabaruka et al 2005), although Sperry et al (1994) found that some ring-porous species could tolerate cavitation or rely on new xylem production to restore hydraulic conductance. Furthermore, vessel size has been shown to acclimate to the availability of spring and summer precipitation in Quercus robur (Gárcia-González & Eckstein 2003).…”

Section: Introductionmentioning

confidence: 99%

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Effects of drought and nutrient deficiency on grafts originating from sound and shaken sweet chestnut trees (Castanea sativa Mill.)

Mutabaruka¹,

Cook²,

Buckley³

2016

iForest

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Scions taken from felled, shaken or sound sweet chestnut trees (Castanea sativa Mill.) were grafted and grown for one year in a polythene tunnel in order to compare their responses to water and nutrient stresses. Phenological characteristics of the original trees were strongly reproduced in the grafts grown both in this controlled environment and later on in the field. Grafts originating from shaken trees flushed up to six days later, senesced earlier and produced larger spring vessels. Artificially imposed drought reduced stomatal densities by 5.6% and xylem vessel diameters by up to 35%. Fertiliser additions significantly increased stem increments and promoted earlier flowering, with hermaphrodite flowering filaments more common in grafts from shaken trees. It is considered that, because of their larger spring vessels, shaken trees may be more vulnerable to cavitation and therefore to drought, even though moisture stress is mitigated by some plasticity in earlywood vessel diameter.

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Section: Phenologysupporting

confidence: 84%

Section: Physiological Age Of Graft Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of drought and nutrient deficiency on grafts originating from sound and shaken sweet chestnut trees (Castanea sativa Mill.)

Mutabaruka¹,

Cook²,

Buckley³

2016

iForest

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“…In fact, Chanson et al (1989) and Fonti et al (2002b) reported the presence of ring shake in 39-60% of trees in sample plots observed immediately after felling at several locations in France, Italy, Switzerland, and Spain. Mutabaruka et al (2005) carried out a study to assess the value of external tree characteristics in predicting ring shake. The study by Birbilis et al (2018), in accordance with that of Romagnoli and Spina (2013), has shown that it is possible, based on the age and diameter of the trees, to successfully predict the presence of ring shake.…”

Section: Introductionmentioning

confidence: 99%

A tomographic approach to assessing the possibility of ring shake presence in standing chestnut trees

et al. 2020

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Ring shake is a widespread phenomenon affecting a great number of species of both softwood and hardwood and is found in trees grown in temperate and tropical climates. Chestnut (Castanea sativa Mill.) represents one of the most important hardwood timbers that is very often affected by ring shake. This defect seems to be the only real limit to the spread and use of chestnut wood worldwide on a scale closer to the availability of this wood. The aim of this study was to examine the potential of tomographic measurement as a non-destructive method for predicting the possibility of the presence of ring shake in standing chestnut trees. For this reason, the experiments were carried out in a chestnut coppice stand where one hundred chestnut standards were monitored using an acoustic tomographic device, and subsequently harvested by a local company and cross-sectioned corresponding to the acoustic tests. This work proposed an applied approach to predicting and determining wood quality (sound wood vs. defective wood) from tomographic data. The model, based on a non-linear approach, showed that sonic tomography can identify ring shake in a tree trunk without affecting its biological activity, overcoming the difficulties of predicting ring shake using only visual inspection.

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“…Όσο γηραιότερα είναι τα δέντρα της καστανιάς τόσο περισσότερο τείνουν να εμφανίσουν το σφάλμα της αποκόλλησης των δακτυλίων. Αυτό αναφέρεται σε πολλές βιβλιογραφικές πηγές σαν κάτι αυτονόητο(Mutabaruka et al 2005) ενώ και σε συγκεκριμένες μετρήσεις που έγιναν σε σπερμοφυή πληθυσμό στην περιοχή της Δράμας (Μπιρμπίλης και Βουλγαρίδης 2005, Birbilis and Voulgaridis 2006) διαπιστώθηκε ότι Σχήμα 2.1. Διάγραμμα συχνοτήτων εμφάνισης της αποκόλλησης των δακτυλίων σε σχέση με την ηλικία των κορμοτεμαχίων.2.7.5 Αύξηση -Πλάτος δακτυλίων…”

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Έρευνα της αποκόλλησης των αυξητικών δακτυλίων σε ξύλο καστανιάς (castanea sativa mill.) και των συνεπειών της στην ποιότητα της παραγόμενης ξυλείας

Μπιρμπίλης¹

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Σελίδα 1…… ΕΙΣΑΓΩΓΗ -ΤΟΠΟΘΕΤΗΣΗ ΘΕΜΑΤΟΣ 2…… ΑΝΑΣΚΟΠΗΣΗ ΒΙΒΛΙΟΓΡΑΦΙΑΣ 2.1 Η αξιοποίηση της καστανιάς στην Ευρώπη και κυρίως στην Ελλάδα 2.2 Το πρόβλημα της αποκόλλησης των δακτυλίων 2.3 Μακροσκοπική εμφάνιση και τύποι αποκόλλησης δακτυλίων 2.4 Χρόνος εμφάνισης και θέση εμφάνισης του σφάλματος της αποκόλλησης των δακτυλίων 2.5 Μικροσκοπική εμφάνιση του σφάλματος * Ένα τέτοιο παράδειγμα δίνεται στην παρούσα εργασία με τη δημιουργία στατιστικού μοντέλου πρόβλεψης του σφάλματος χρησιμοποιώντας ως μεταβλητές την ηλικία και τη διάμετρο. * Τα δοκίμια που χρησιμοποιήθηκαν για τη μέτρηση της αντοχής σε κρούση και σε σκληρότητα προέρχονται από τα ίδια δείγματα γι' αυτό και έχουν την ίδια φαινομενική πυκνότητα και τα αποτελέσματά τους αναφέρονται μαζί σε κοινό πίνακα

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External and internal growth parameters as potential indicators of shake in sweet chestnut (Castanea sativa Mill.)

Cited by 10 publications

References 4 publications

Effects of drought and nutrient deficiency on grafts originating from sound and shaken sweet chestnut trees (Castanea sativa Mill.)

Effects of drought and nutrient deficiency on grafts originating from sound and shaken sweet chestnut trees (Castanea sativa Mill.)

A tomographic approach to assessing the possibility of ring shake presence in standing chestnut trees

Έρευνα της αποκόλλησης των αυξητικών δακτυλίων σε ξύλο καστανιάς (castanea sativa mill.) και των συνεπειών της στην ποιότητα της παραγόμενης ξυλείας

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