Low light intensity and flower bud abortion in Asiatic hybrid lilies. I. Genetic variation among cultivars and progenies of a diallel cross

Far-red at End of Day and Reduced Irradiance Affect Plant Height of Easter and Asiatic Hybrid Lilies

“…'Ace' and 'Enchantment' produced fewer flowering buds with increased shading, but this factor was not affected by photoperiod (data not shown), confirming earlier findings (Einert and Box, 1967;Weiler, 1978). The number of aborted buds per flower increased with shading on 'Enchantment' only (Table 2), as previously reported for Asiatic hybrids (Boontjes et al, 1975;Van Tuyl et al, 1985), but was not affected by photoperiod, as noted by Kamerbeek and Durieux (1971). In contrast, shading increased the leaf surface area but decreased the leaf dry weight of 'Ace' and 'Nellie White' but not of 'Enchantment'.…”

Induced Mutations in Ornamental Plants

“…Since the 1970s, breeding and selection programmes for low-light tolerance have been reported, e.g. in chrysanthemum (Satory, 1977;De Jong, 1986 and Lilium (van Groenestijn and van Tuyl, 1983;van Tuyl et al, 1985).…”

“…The ftower bud abscission was either absent or reduced during winter culture without supplementary illumination (van Groenestijn and van Tuyl, 1983). From one clone, van Tuyl et al (1985) obtained different mutants with various responses to light intensity. They expected that the selection would yield commercial cultivars with an acceptable performance at a lower light intensity.…”

Plant Hormones under Challenging Environmental Factors

“…The growth pattern and productivity of two indica rice genotypes of kharif and three of rabi were assessed under low light intensity. Vantuyl et al ( 1985 ) reported the incidence of fl ower bud abortion in Asiatic hybrid lilies exposed to low light intensity. Such effects were critical from primordial initiation onward.…”