Assuming Eq. (9), the half-expansion period t *, which is the time necessary for a leaf area to reach one-half of its maximum, is defined as follows: t * = ln k λ (10).
The temperature sum that appeared to be necessary for the leaf to complete Phase I and enter Phase II was therefore around 350.
In order to determine whether HrcUXAC and its NPTH site were necessary for Xac survival in inoculated host leafs, we inoculated Citrus leafs with Xac bacterial suspensions and accompanied bacterial numbers during a 12 day period after infection.
Optimal leaf angle is also necessary for dense planting.
Our promoter analyses revealed an important role of the pTRY-B fragment as it is absolutely necessary for the basal expression in the young leaf and for rescuing the clustering phenotype of the try mutant.
These plants showed complete rescue of the clustering phenotype indicating that the 1.8 kb 5' region contains all regulatory sequences necessary for the correct TRY expression in the leaf epidermis.
Sweep up all your leaves for leaf mould.
The micropropagated plants showed significantly higher values for leaf area, leaf length, leaf width and leaf dry mass.
For leaf classification, we use Swedish leaf dataset [97].
