PINE NEEDLES’ “photosynthetic capacity increases as they mature, peaks when they are fully expanded, then gradually declines until senescence, typically several years later. Senescence is a tightly controlled process in which various nutrients may be mobilized; for example, Rubisco and other soluble proteins in older leaves may be used as nitrogen stores during the development of new needles in the spring.”
http://jxb.oxfordjournals.org/content/66/11/3113.full
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022