Agriculture Reference
In-Depth Information
Fig. 2.2.
The growth in length of successive leaves and in bulb diameter after
onions were sown in mid-April in Switzerland. The timing of each growth stage in
Fig. 2.1 is indicated (redrawn from Rey
et al
., 1974).
Fig. 2.3.
(a) A cross-section of a single garlic clove with the corresponding parts
shown below in longitudinal section as follows: 1, protective leaf; 2, storage leaf; 3,
sprout leaf (bladeless); 4, first foliage leaf; 5, second foliage leaf surrounding still
smaller foliage leaves, all attached to the stem. The dotted line indicates the lower
limit of the leaf blade. (b) A sprouting garlic clove still surrounded by the protective
leaf, P. From the clove tip protrude the sprout leaf, SP and the elongating blades of
the foliage leaves, F (from Mann, 1952. Courtesy of
Hilgardia
).
