Agriculture Reference
In-Depth Information
(a)
(b)
(c)
(d)
Fig. 6.10.
A series of stages in the growth
of an overwintered bulb onion crop
grown in four-row beds at Wellesbourne,
UK. (a) Early November; (b) mid-January;
(c) mid-April; and (d) early June. The
foliage has fallen down and bulbs are
ready for harvest (photographs courtesy
of Warwick HRI, UK).
Fig. 6.11.
Thick-necked onions in the autumn. Late-sown (29 April) maincrop cv.
'Robusta', damaged by herbicide in late June, fails to produce ripe bulbs by mid-
September in Lincolnshire, UK. Note the elongated thick necks on plants that have
partially bulbed and the plant-to-plant variation in the degree of bulbing
(photograph courtesy of Warwick HRI, UK).
