Siberian fir (Abies siberica) list and comments, with ID numbers:


Siberian fir, Abies siberica, Ledeb

P05 (June 14)


SF001 - April 18, 2010, terminal/leader bud study

SF001a June 2009, shoots extending, 1 inch wire mesh

SF001 June 2009, shoots extending, 1 inch wire mesh

SF001 August 17, 2009 - photo taken August 17 (shoot extension stopped on July 16, see below).

           
First hand field notes:

Average time of first seasonal shoot extension (bud break): first sign of movement from winter sleep noticed (slight red hue in lateral buds): May 14. This compares with the first sign of shoot extension around May 1 for native Balsam fir.

 Height growth meaurements for 2010: total 17.7 cm

 2010 growth:

 7.5 cm  to June 17
 8.5 cm  to June 20
12.2 cm to June 26
13.0 cm to June 27
15.0 cm to July 1
15.2 cm to July 2
16.0 cm to July 4
16.7 cm to July 5
17.0 cm to July 6
17.5 cm to July 8 <------------
17.5 cm to July 10
17.5 cm to July 11
17.7 cm to July 15 <-----------
17.7 cm to July 23

Height growth measurements for 2009: total 20.5 cm

2009 growth:  

July 11, 2009: 19.5 cm
July 13, 2009: 19.8 cm
July 15, 2009: 20.0 cm
July 16, 2009: 20.5 cm <---------
July 17, 2009: 20.5 cm
July 18, 2009: 20.5 cm
July 19, 2009: 20.5 cm
July 20, 2009: 20.5 cm
July 22, 2009: 20.5 cm

Note the abrupt ending of height growth at July 16.
Approximate date for the end of seasonal height growth in 2009: July 16

SF001 June 2008, shoots extending, 1 inch wire mesh


SF002 June 2006, shoots extending (~550kb file)


SF003  December 2005, 1 inch wire mesh/note 25 cent piece on ground for scale. Wire mesh protects against Snowshoe Hares (locally known as rabbits).