One small plant in bud; one large tree in flower
No interactions present.
Do you think it is age? If it is nearby it can't be soil.
Certificate in Contemporary Science (Open)
Early developers and late developers; some QTL that governs opening time, perhaps. Compare http://www.genetics.org/content/183/1/325.abstract
I'm not sure I understand the abstract but take your point!
Lat/Lng: 52.112, 0.25553
OS grid ref: TL545483