| Author | Suwimon Boonchuay |
| Call Number | AIT Thesis no.AS-06-13 |
| Subject(s) | Asparagus
|
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Science, School of Environmental, Resources and Development
|
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AS-06-13 |
| Abstract | Asparagus is an attractive crop to the growers engaged in the production.
Asparagus yields fluctuate heavily depending upon the length of harvesting period, which
is partly dependant upon the size of carbohydrate reserves in the root system, and the
resting period duration after harvesting. This study was therefore conducted to determine
the effect of pruning intensity and resting period duration after terminating the harvesting
period on the spear yield of asparagus.
The study was conducted during September to December 2005 using one
harvesting-resting period cycle in Nakhonpathom province. Four pruning intensities and
two resting period durations tested in a factorial design together with the farmers' practice
as a control. Pruning intensity showed significant effects on the spear production, in terms
of number of years and weight of spears. Increasing the number of stalks retained per
mother fem increased the spear number and total spear production during a harvesting
cycle, when compared to the control treatment, i.e. clear pruning combined with fourweek resting period. Resting period duration of three weeks and four weeks did not differ
significantly in terms of number of spears and weight of spears per hectare, although there
were greater number and weight in the three- over four-week resting periods.
Production of export grades of spears in the following harvesting period increased
with increasing the number of stalks retained per mother fem up to three stalks at the time
of resting, compared to control. Gross income of asparagus was greater with the three-stalk
retained pruning intensity than those treatments having lower number of stalks per mother
fem. Both increased yields of rejects, grades A, B and C consecutively contributed to the
growth and income in the descending order.
|
| Year | 2006 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AS-06-13 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Aquatic Systems (AS) |
| Chairperson(s) | Ranamukhaarachchi, S.L.; |
| Examination Committee(s) | Athapol Noomhorm ;Clemente, Roberto S. |
| Scholarship Donor(s) | Royal Thai Government Fellowship ; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2006 |