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Showing 1 to 13 of 13 for “"floral initiation"”.

  1. Floral initiation in <i>Rudbeckia hirta</i>: limited inductive photoperiod, polyamines and cytokinins

    Harkess, Richard LeeVirginia Tech1993

    This study examined floral initiation in Rudbeckia hirta at the biochemical, cellular, and whole plant levels. Histological and histochemical examination of floral initiation revealed that the pattern of initiation followed closely that described in other species. The primary difference was in the …

    vt Repository record

  2. STUDIES ON THE GROWTH AND FLORAL INITIATION UNDER CONTINUOUS LIGHT IN PHARBITIS NIL, A SHORT-DAY PLANT

    Shinozaki, MasateruKyoto University1975

    kyoto Repository record

  3. Characterization of juvenility and photoperiodic responses of Rudbeckia hirta originating from different latitudes

    Beckwith, Diane DuncanVirginia Tech1991

    … to determine juvenile phase length and speed of floral initiation. Ecotypes from northern latitudes had fewer leaves at maturity and, overall, there was a quadratic relationship between latitude of origin and number of days to first flower from start of LD. Once plants were mature, the speed of …

    vt Repository record

  4. Examination of flower initiation and development of Streptocarpus x hybridus

    Orvos, Andrea ReiserVirginia Tech1988

    … of exogenously applied GA<sub>4+7</sub> on floral and vegetative development of <u>Streptocarpus x hybridus</u> were investigated. <u>S. x hybridus</u> 'Hybrid Delta' petiolode tissue from plants treated with 25 μg GA<sub>4+7</sub> were examined by scanning electron microscopy. Plants …

    vt Repository record

  5. Phenology, canopy development, biomass and grain yield of annual canarygrass (Phalaris canariensis L.)

    Xyntaris, KonstantinosUniversity of Saskatchewan2018

    … and reduced their FLN and their leaf stage at floral initiation (MHLSFI) upon exposure of the seedlings for up to 14 days at 5°C and 10°C but not at 15°C vernalizing treatments. Both wheat and oat had similar or slightly altered FLN and MHLSFI with different SDs and vernalizing treatments. A …

    sask Repository record

  6. Flowering in protea : a molecular and physiological study.

    Smart, MarietteDepartment of Molecular and Cell Biology2012

    … Africa. However, the factors that influence the initiation of flowering in Protea have not been identified. From data gathered by the Protea Atlas Project it is evident that Protea spp. have greatly varying flowering times. Furthermore, flowering times between Protea spp. and their hybrid …

    cape-town Repository record

  7. The autecology of Stipa Trichotoma Nees (Nassella Tussock) on Rhodes Estate, in the South-Western Cape

    Harding, Graham BruceDepartment of Biological Sciences1982

    … The stages of flowering were also noted. Floral initiation occurred in early summer with fruits being dispersed in January to February. Variation in fruit shape and colour was found. Cleistogamy was found to be common and to result in relatively short fat fruits. Cleistogamy occurred in …

    cape-town Repository record

  8. Flowering Control and Production of Strobilanthes dyerianus Mast. (Persian Shield)

    Gamrod, Erin ElizabethVirginia Tech2003

    … becomes reproductive, stem elongation slows and floral buds arise from every node, rendering the plants useless for propagation. The objectives of this research were to examine the effectiveness of manipulating environmental factors and the application of ethephon on preventing floral bud …

    vt Repository record

  9. Understanding the mechanisms of the photoperiod flowering pathway in soybean

    Price, WilliamUniversity of Illinois at Urbana-Champaign2012

    … in photoperiodic flowering pathway to induce floral initiation.

    uiuc Repository record

  10. Juvenility and flowering responses in Chrysanthemum x superbum and Coreopsis grandiflora and lanceolata

    Damann, Margaret S.Virginia Tech1991

    … of apices of C. x superbum 'Snow Lady' revealed floral initiation in all 5 plants sampled following 3 weeks of LD. Initiation in SD started after the fifth week and was evident in all 5 plants sampled after the ninth week of SD. The effects of chilling and a limited number of inductive …

    vt Repository record

  11. Recent advances using genetic analyses in waterhemp

    Murphy, Brent PUniversity of Illinois at Urbana-Champaign2021

    … due to enrichment of terms associated with floral initiation and floral organ development. Hybridization studies and gene-flow experiments were conducted between A. tuberculatus and its close phylogenetic neighbor, A. arenicola. Under directed crosses, hybridization fecundity was comparable …

    uiuc Repository record

  12. The Function and Regulation of Photobodies in Phytochrome Signaling

    Van Buskirk, Elise2014

    … of the plant life cycle, from germination to floral initiation. Of the many light receptors in the model plant <italic>Arabidopsis thaliana</italic>, the red- and far-red light-sensing phytochromes (phys) are arguably the best studied, but the earliest events in the phy signaling pathway …

    duke Repository record

  13. Effect of temperature and daylength on the phenological development of oats (Avena sativa L.)

    Sonego, MarcioLincoln University2000

    … approach based on the co-ordinated processes of initiation and expansion of leaves and floral structures on the main shoot apex. To compare both approaches, phenological events of field grown oat crops, and the number of leaves and floral structures initiated and expanded on the main shoot apex …

    lincoln Repository record