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Old cane showing obvious increase in diameter just below vigorous
4 other sections not shown
acid peat Altho basal laterals basal region blackberry bud insertion calloused cambial activity cambial initials Canada balsam cane declines canes examined canes HICHL canes central and tip central region complete ring Cross-section Cuthbert Cane Cuthbert variety darker-stained diameter at base difﬁcult discoloration dormant young canes downward Feeble Activity feeble development Figure 12 ﬁrst season fruiting season growing laterals HICHL canes HICHL Horticulture illustrates this condition increase in diameter indicate irregular margin Latham variety medium vigor microtome MINNESOTA TECHNICAL BULLETIN narrow area old canes show periderm phloem point of bud previous season radial growth rapid narrowing RED RASPBERRY CANE Resting Cambium resting condition roots safranin second season Section Cut sections were cut SENESCENCE shoots shorter canes shown in Figure sodium nitrate stain staked hills studies sufﬁcient TECHNICAL BULLETIN 69 tip region tissues vigorous canes vigorous laterals weak canes xylem formation xylem was formed xylem was found xylol