TY - JOUR
T1 - Discovery of novel traits in seed-propagated Lilium
T2 - Non-vernalization- requiring, day-neutral, reflowering, frost-tolerant, inter-hardy L. xformolongi.II. Photoperiodism in parents and hybrids
AU - Anderson, Neil O.
PY - 2012/12
Y1 - 2012/12
N2 - The discovery of seed-propagated lily hybrids which flower in <1 year from sowing in any photoperiod presents unique opportunities for transforming lilies. Recent research documented such hybrids to possess additional traits such as reflowering capabilities, frost tolerance, and winter hardiness. Objectives of this research were to examine Lilium xformolongi hybrids, backcrosses, and parental species (L. formosanum, L. longiflorum) in photoperiods (SD/LD) to clarify flowering in more stringent environments (growth chambers, greenhouses) than previously. Case cooled (CC) and non-CC bulbs (L. formosanum, L. longiflorum 'Nellie White'); non-vernalized L. xformolongi seed-propagated cultivars (5 cultivars, 9 seed lots), L. longiflorum 'Snow Trumpet', and L. xformolongi backcrosses (5 BC1F1 were tested. Seed germination ranged from 4% to 83.3%; yield potential was similar. Flowering L. xformolongi (growth chamber) did not differ from L. longiflorum 'Nellie White' for VBD. Cultivar x photoperiod interactions were not significant except flowering date (P = 0.04). 'Nellie White' (CC) flowered in 213 d, while L. xformolongi cultivars flowered in 247 d ('Sakigake Raizan') to 306 d ('Raizan No. 3') from sowing. Non-vemalized L. formosanum, L. longiflorum bulbs never flowered in either photoperiod or environment. Both VBD and flowering date were highly heritable and correlated. Regardless of photoperiod and environment, seed-propagated L. xformolongi flowered in <1 year. One backcross was day-neutral for flowering. Two L. xformolongi BC1F1 and L. longiflorum 'Snow Trumpet' produced significantly less leaves than 'Nellie White'. Leaf number (h2= 0.83) was not as tightly linked in L. xformolongi as 'Nellie White'. Plant height in L. formosanum (CC bulbs, several backcross L. xformolongi hybrids) did not differ from 'Nellie White'. In contrast, only 'Sakigake Raizan' was taller than 'Nellie White' in growth chambers.
AB - The discovery of seed-propagated lily hybrids which flower in <1 year from sowing in any photoperiod presents unique opportunities for transforming lilies. Recent research documented such hybrids to possess additional traits such as reflowering capabilities, frost tolerance, and winter hardiness. Objectives of this research were to examine Lilium xformolongi hybrids, backcrosses, and parental species (L. formosanum, L. longiflorum) in photoperiods (SD/LD) to clarify flowering in more stringent environments (growth chambers, greenhouses) than previously. Case cooled (CC) and non-CC bulbs (L. formosanum, L. longiflorum 'Nellie White'); non-vernalized L. xformolongi seed-propagated cultivars (5 cultivars, 9 seed lots), L. longiflorum 'Snow Trumpet', and L. xformolongi backcrosses (5 BC1F1 were tested. Seed germination ranged from 4% to 83.3%; yield potential was similar. Flowering L. xformolongi (growth chamber) did not differ from L. longiflorum 'Nellie White' for VBD. Cultivar x photoperiod interactions were not significant except flowering date (P = 0.04). 'Nellie White' (CC) flowered in 213 d, while L. xformolongi cultivars flowered in 247 d ('Sakigake Raizan') to 306 d ('Raizan No. 3') from sowing. Non-vemalized L. formosanum, L. longiflorum bulbs never flowered in either photoperiod or environment. Both VBD and flowering date were highly heritable and correlated. Regardless of photoperiod and environment, seed-propagated L. xformolongi flowered in <1 year. One backcross was day-neutral for flowering. Two L. xformolongi BC1F1 and L. longiflorum 'Snow Trumpet' produced significantly less leaves than 'Nellie White'. Leaf number (h2= 0.83) was not as tightly linked in L. xformolongi as 'Nellie White'. Plant height in L. formosanum (CC bulbs, several backcross L. xformolongi hybrids) did not differ from 'Nellie White'. In contrast, only 'Sakigake Raizan' was taller than 'Nellie White' in growth chambers.
KW - Day neutrality
KW - Flowering
KW - Heritability (broad-sense)
KW - Leaf number
KW - Lilium formosanum
KW - Lilium longiflorum
KW - Photoperiodism
KW - Visible bud date
UR - http://www.scopus.com/inward/record.url?scp=84905404575&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905404575&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84905404575
VL - 6
SP - 73
EP - 83
JO - Floriculture and Ornamental Biotechnology
JF - Floriculture and Ornamental Biotechnology
SN - 1749-0294
IS - SPEC.ISS.2
ER -