LIGNIFY • DICCIONARIO INGLES.COM • Definition of Lignify

... signally failed with perennial plants and most impressively with trees? Doubtless plants produce in their leaves a hormone which directs certain enzymes that conduct wound repair by cell division. If plants which do not lignify for winter manage to direct successful wound repair after grafting and if plants which do lignify for winter do not conduct successful repair of grafted new growth it occurred to me in a speculative way that the reason might perhaps be sought in the nature of the two different kinds ...

— Northern Nut Growers Association Report of the Proceedings at the Twenty-Fourth Annual Meeting • Northern Nut Growers Association