Articles
CULTURAL AND GENETIC FACTORS AFFECTING THEBAINE YIELD IN PAPAVER BRACTEATUM LINDL.
Article number
132_20
Pages
189 – 196
Language
Abstract
Papaver bracteatum is a perennial species flowering usually in the second year of growth.
Late summer planting or direct sowing of a selected line, gave a high flowering rate (96%) during the first growing season.
Delaying the planting date decreased the flowering rate and yield of the capsules in the first year.
Autumn plantings can be used for thebaine production from the roots: high plant densities yielded more than 2g/m2 thebaine.
Thebaine yield from the capsules was much lower than that from the roots: 0.69g/m2 during the first growing season and 0.7g/m2 during the second.
Increasing the plant density lowered the number of capsules per plant and their weight, but did not affect significantly the thebaine yield per area.
Exploiting the self-incompatibility system prevailing in the species and the relatively high heritability of thebaine content, high-yielding hybrid cultivars could be developed.
Late summer planting or direct sowing of a selected line, gave a high flowering rate (96%) during the first growing season.
Delaying the planting date decreased the flowering rate and yield of the capsules in the first year.
Autumn plantings can be used for thebaine production from the roots: high plant densities yielded more than 2g/m2 thebaine.
Thebaine yield from the capsules was much lower than that from the roots: 0.69g/m2 during the first growing season and 0.7g/m2 during the second.
Increasing the plant density lowered the number of capsules per plant and their weight, but did not affect significantly the thebaine yield per area.
Exploiting the self-incompatibility system prevailing in the species and the relatively high heritability of thebaine content, high-yielding hybrid cultivars could be developed.
Authors
D. Palevitch, A. Levy
Keywords
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