An aqueous solution of dikegulac-sodium at 0, 2000, 4000, 6000, or 8000 mg a.i./liter was sprayed on a mature Murraya paniculata hedge as the first leaves expanded on newly developing lateral shoots after trimming. The lateral shoots from each 0.09-m2 hedge surface elongated less and the coefficient of variation (cv) decreased as the growth regulator concentration increased. Application of dikegulac-sodium at 4000 mg a.i./liter to the most distal leaf on topped, single-leader seedlings inhibited the elongation of distal shoots while it enhanced proximal shoot growth. Dikegulac-sodium spray between 4000 and 6000 mg a.i./liter to the hedge decreased apical dominance among lateral shoots and enhanced uniform regrowth without causing visible damages. The cv reduction was attributed to the growth regulator-induced weakening of apical dominance. Chemical name used: sodium salt of 2,3:4,6-bis-O-(1-methylethylidene)-α-l-xylo-2-hexulofuranosonic acid (dikegulac-sodium).
Osamu Kawabata and Richard A. Criley
Melissa Bravo, Antonio DiTommaso, and David Hayes
( Clematis sp.) and chinese pear ( Pyrus pyrifolia ) were not documented as having been actually planted and were also not found in cultivation in 2002. The most frequent landscape shrubs honeysuckle, mock orange, and burning bush found in the ROVA cultural
D.W. Burger, T.K. Hartz, and G.W. Forister
Seed germination and crop growth characteristics were determined for Tagetes spp. L. `Lemondrop', marigold; Catharanthus roseus Don. `Little Pinkie', vinca; Petunia hybrida Vilm. `Royalty Cherry', petunia; Dendranthema×grandiflorum (Ramat.) Kitamura `White Diamond', chrysanthemum; Pittosporum tobira Ait. `Wheeleri', sweet mock orange; Photinia ×fraseri Dress., photinia and Juniperus sabina L. `Moon Glow', juniper grown in various size containers containing blends of composted green waste (CGW) and UC Mix. Seed germination, plant height, and stem and root fresh and dry mass were lowest in unamended CGW. For most plants studied, a CGW: UC Mix blend containing at least 25% UC Mix was required for adequate growth and development. Germinating seeds and young seedlings were most adversely affected by unamended CGW. As plants grew and were transplanted into larger containers (10- and 15-cm pots, 530 and 1800 mL), they were better able to grow in media with higher CGW content.
Gabriele Amoroso, Piero Frangi, Riccardo Piatti, Alessio Fini, Francesco Ferrini, and Marco Faoro
least ( Table 3 ). Blue-spirea, border forsythia, bumald spirea, fuzzy deutzia, glossy abelia, goldencup st. johnswort, hybrid deutzia, redosier dogwood, scorpion senna, spanish broom, virginal mock orange, and purpleosier willow had the lowest hand
Youping Sun, Guihong Bi, Genhua Niu, and Christina Perez
, perennials, woody ornamentals and trees. Dikegulac sodium sprayed between 4000 and 6000 mg·L −1 to mock orange ( Murraya paniculata ) hedge decreased apical dominance among lateral shoots and enhanced uniform regrowth without causing visible damage
Karla M. Addesso, Anthony L. Witcher, and Donna C. Fare
) and under simulated summer greenhouse conditions with widely fluctuating temperature and humidity levels ( Hewitt et al., 2015 ). It can establish on mock orange [ Murraya paniculata ( Juan-Blasco et al., 2012 )] and citrus [ Citrus sp. ( Palevsky et