is lost faster than on flat land, and irrigation is difficult. High temperatures and drought in summer in southern China negatively affect the growth of oil tea seedlings ( Dong et al., 2017 ). For oil tea, drought stress decreased the photosynthetic
Abstract
Growth was reduced from leaf-bud golden pothos [Epipremnum aureum (Linden & Audre) Bunt.] cuttings taken from an apical node with the most recent, fully expanded leaf. Days to first leaf unfolding increased as cuttings were taken more basipetally from the second apical node to node 14. Accelerated growth of the axillary shoot and increases in leaf number, stems length, leaf area, and shoot fresh weight were associated with cuttings from the apical nodes. Shoot growth was accelerated when cuttings had a 3-cm or longer internode below the nodes. Retaining a 6 to 8-mm section of the old aerial root on cuttings promoted axillary shoot growth.
with adventitious organogenesis using internodes or callus ( Debergh and Maene, 1989 ). In vitro axillary shoot production can be conducted in two ways. One approach is “linear nonproliferative culture,” which simply accelerates development of buds
containing 35 mg nitrogen, 15 mg phosphorus, and 29 mg potassium (Peters Professional; Scotts). After bolting and before flowering, 3 months after planting, the plants were transferred into growth chambers representing one of two treatments: 1) red-rich light
The effect of vernalization and two growth regulators Fascination™ and Pro-Gibb® on the growth, inflorescence development and flowering of Ornithogalum `Chesapeake Snowflake' was studied. Regardless of bulb size, chilling bulbs for 3 weeks at 10°C before planting accelerated flowering of the first inflorescence and shorten leaf length by 3-5cm as compared to non-chilled bulbs. Fascination™ 10% 100 μL and Pro-Gibb® 200 ppm accelerated flowering of first inflorescence by large bulbs (8- to 10-cm circumference) as compared to controls. PGR treatments appear to have no effect on small bulbs (3-5-cm circumference).
Abstract
Fruit growth and development of 6 rabbiteye blueberry (Vaccinium ashei Reade) cultivars were measured from bloom date through harvest season. Fruit development was characterized by 3 divisions of growth: an early period of accelerated size increase, a second period with lesser increase in fruit size, and a third period with a greatly accelerated increase in fruit size which continued until fruit was mature. Fruit size in all cultivars was largest at the first harvest and smallest at the last harvest. Cultivar differences were evident in fruit size, fruit development, titratable acidity, and percent soluble solids.
Abstract
(2-Chlrorethyl)phosphonic acid (ethephon) advanced maturity of peach (Primus persica (L.) Batsch] by accelerating fruit development during me first 3 weeks of Stage III. Application early in Stage II did not affect fruit growth until the normal transition into Stage III, which indicates that ethylene does not initiate State III in the peach, but promotes fruit development once Stage III begins.
Abstract
Ethephon applications at 250 to 1500 ppm rates during final swell of ‘Babygold-9’, a clingstone peach, accelerated maturation as measured by firmness and skin and flesh color changes and reduced titratable acidity. High rates were phytotoxic and detrimental to fruit quality. Increased immature fruit abscission appears to limit the practical use of ethephon at this growth stage in peach.
Six cultivars of Achimenes, `Blau Import', `Blauer Planet', `Linda', `Prima Donna', `Schneewittchen', and `Tetraelfe', were grown for 16 weeks under short (SD, 8 hours) or long days (LD, 16 hours) at 21C in a greenhouse. LD increased plant height, shoot mass, number of flowers, and accelerated time to anthesis. SD, depending on the cultivar, increased number of rhizomes. Results show differences in several characteristics of growth and development among the cultivars and that LD promote shoot growth and flowering.
Abstract
Treatments with gibberellic acid (GA3), naphthaleneacetic acid (NAA), or their combination to Cyclamen persicum Mill. ‘Swan Lake’ plants resulted in separate, antagonistic, or cooperative effects on leaf lamina unfolding, days to flowering, number of leaves at first flower, and length of the first flower's peduncle. Generally, GA3 accelerated plant growth nonspeciflcally, resulting in plants which flowered earlier than untreated plants, but with a similar number of leaves at first bud flowering. The combination of GA3 plus NAA specifically accelerated flowering, but this effect diminished as the treatment frequency or quantity of the NAA application increased.