[Text] = Mognadsprocessen hos tallfro (Pinus silbesyris L.) i relation till
temperatur klimatet samt froets av sockerarter : научное издание / L. Kardell, B. Nyman, S. Bobeck. - Stockholm : Skogshogskolan, 1973. - 21 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 107). - eng. - Библиогр.: с. 20-21. -
ISBN 91-38-01622-2 : 0.40 р.
Аннотация: The present investigation is an attempt to describe further some of the complicated connections between the temperature climate and germinability of pine seeds and simultaneously their changing content of various types of sugar. To limit the ecological variation as far as possible, with the exception of the temperature factor, the studies have been based on material collected from one and the same pine stand. Collections of pine cones were made during three consecutive years, and the local temperatures were taken and recorded at the same time. The study is part of a more extensive investigation into ripening conditions of Scots pine seeds at higher altitudes in northern Sweden.
Доп.точки доступа: Nyman, B.; Bobeck, S.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)