Dimensional variations in fusiform and ray initials over different seasons of year in Juglans regia Linn. from temperate type of climate of Kashmir Himalaya

Vascular cambium, a secondary meristematic tissue which by divisions of its initials results in the formation of secondary xylem (wood), were investigated in the present study to assess their impact on growth during different months of year from temperate climate of Kashmir. Fusiform initials were at their maximum and minimum dimensions during winter and summer months, respectively, while the dimensions of ray initials were maximum and minimum during summer and winter months, respectively.