New Zealand Journal of Crop and Horticultural Science abstracts
Growth and development of successional field plantings
of asparagus seedlings
SIGIT SUDJATMIKO*
KEITH J. FISHER
MICHAEL A. NICHOLS
DAVID J. WOOLLEY
Department of Plant Science
Massey University
Private Bag 11 222
Palmerston North, New Zealand
*Present address: Facultas Pertanian, University of Bengkulu, Jl. Raya Kandang
Limun, Bengkulu, Indonesia.
Abstract Commencing in September, seven successional
plantings of asparagus (Asparagus officinalis L.) seedlings were made at
4-weekly intervals with the varieties `UC157' and `Jersey Giant'. Commencing 4
weeks after each planting, successional destructive harvests were made at
4-weekly intervals until autumn. A single destructive harvest was also made in
December in the following season. Plant growth fitted a logistic growth model
with a heat unit time scale. Early planting favoured improved plant growth. The
allometric relationship between the relative growth rate of the shoot and root
had changed for all plantings by the February harvest. It is suggested that
changes in daylength mediated this alteration, which provides for the
partitioning of proportionately more dry matter to the crown. In both seasons,
bud formation was restricted until December. Although the total plant dry
weights were similar, `UC157' produced more buds, shoots, and storage roots
than `Jersey Giant'.
Keywords Asparagus officinalis L.; asparagus
seedlings; successional plantings; fern growth; seasonal effects; dry matter
partitioning; bud formation
New Zealand Journal of Crop and Horticultural Science, 1997, Vol. 25:
243-250
0114-0671/97/2503-0243 $7.00/0 (c) The Royal Society of New Zealand
1997
PDF file of entire paper: medium quality (518K); (scanned from paper original: notes about this process)
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