Variation in needle retention of scots pine in relation to leaf morphology, nitrogen conservation and tree age

Pensa, Margus2014-09-232014-09-2320039789949376858http://hdl.handle.net/10062/43611enmändokkadkeskmine eluigataimemorfoloogialämmastikdissertatsioonidVariation in needle retention of scots pine in relation to leaf morphology, nitrogen conservation and tree ageThesis