Showing papers in "Scientia Horticulturae in 1983"

TL;DR: The ability of STS to prevent wilting in cut flowers and petal drop in potted flowering plants, and to induce sex transformations in female plants, together with its relative ease of application and low cost per plant, are arguments in favour of using STS in commercial horticulture.

TL;DR: Root growth was significantly improved whenever the seaweed concentrate was applied, and this improved root growth was associated with a reduction in root-knot nematode infestation.

TL;DR: In this article, it is suggested that CaCN2 undergoes a partial hydrolysis to hydrogen cyanamide and cyanamide ions which can be the active form and react as the H2CN2 products.

TL;DR: An alternative approach involves a critical study of manipulative techniques which restrict vegetative flushing and promote vegetative dormancy under non-inductive conditions, i.e. cincturing, applying growth retardants and withholding irrigation and fertilizers.

TL;DR: The possibility of clonal propagation of banana through tissue culture was explored and shoot tips isolated from the rhizomes were found to be suitable material for plantlet production in vitro.

TL;DR: A mass propagation scheme for Lilium plants using a shake culture technique has been developed and it is shown that about 1.2 × 1010 of L. speciosum or 3.

TL;DR: The cell-free extract of Azospirillum strain KUL-X considerably reduced nodulation, N 2 -fixation and N-gain of the Rhizobium strain RRIM-56, which was not otherwise affected by mixed inoculation.

TL;DR: Initial inoculation with several species of thermophilic fungi resulted in a large improvement in the suitability of the composts for the cultivated mushroom, and indicated that the toxicity of ammonia to micro-organisms other than the mushroom could be an important feature of mushroom composting.

TL;DR: Analysis of materials removed from pollen by a brief rinse with an aqueous solvent showed the presence of high concentrations of the C~ H 4 precursor, 1-aminocyclopropane1-carboxylic acid (ACC).

TL;DR: STS was effective whether applied to entire plants or just to the individual developing inflorescences and Phytotoxicity was never observed on any of these species following STS application at concentrations of 0.5 mM or less.

TL;DR: Six cultivars of Psidium guajava Linn, commonly called guava fruit, were harvested as green-skinned fruit at a range of maturities approaching full development and examined for post-harvest changes in respiration as exhibited by production of carbon dioxide, ethylene, skin colour and fruit firmness.

TL;DR: Tipburn development appears to depend on the supply of Ca relative to the rate of leaf growth, and the concentrations at the periphery of the outer leaves was always greater than in the midrib, whereas for the inner leaves the converse was true.

TL;DR: Maintenance of fertility under low-temperature conditions during flowering appeared to be partly, but not entirely, linked to the type A flowering cycle.

TL;DR: Growth rates, root mass, root appearance, leaf area, water consumption and yield of cucumber plants were reduced by low O2 levels in the nutrient solutions.

TL;DR: The hormonal control of growth and development of meristem tips, as well as the significance of in vitro propagation for long-term storage and clonal selection of grapevine cultivars, are discussed.

TL;DR: Bulbing has been induced in adventitious shoots from floral stem explants of Tulipa ‘Merry Widow’ by incubation of 1-mm thick explants at 20°C on a medium containing 1 mg l−1 NAA and BAP for 14–18 weeks, and by raising the concentration of sucrose in the medium.

TL;DR: The fruits picked at 85 days after fruit set stored better, with lower fruit weight loss, less fungal spoilage and superior quality, whereas tannins, starch and vitamin C decreased during storage.

TL;DR: In this paper, the effect of CO2 enrichment on the photorespiration of tomato plants was investigated in a tightly-closed greenhouse, where CO2 was enriched continuously during the entire growing period.

TL;DR: The growth curves of pericarp, seed and aril, and the fruit as a whole were typically sigmoidal and the developing embryo seemed to inhibit aril growth at a certain stage of development.

TL;DR: Although in vitro rooting on standard MS rooting medium increased during the 6-week culture period, highest plant establishment was obtained from 3-week cultures with relatively little root development at the time of planting, therefore, these procedures which enhanced in vitro root development were of no advantage in a propagation program.

TL;DR: Grafted macadamia plants were grown for 80 days in sunlit growth chambers at temperatures of 10, 15, 20, 25, 30 or 35°C and distribution of dry matter was highest in the leaves at 20 and 25°C, which accounted for the major total dry weight increase of plants.

TL;DR: Pollen tube growth in macadamia was studied by fluorescence microscopy, with some self-incompatibility, with pollen tube growth arrested in the style of cultivars ‘Kakea”, ‘Keauhou’, ’Hinde’ and ‘Renown’.

TL;DR: In this article, the MS (1 2 NO3) macronutrients gave the best rooting percentage as well as the highest number of roots per rooted shoot in Chestnut plants.

TL;DR: The selectivity of fully prepared mushroom compost was destroyed by heat (temperatures from about 60°C upwards), and antimicrobial chemicals such as chloroform and alcohol as mentioned in this paper.

TL;DR: Calcium added to fruit, either by spray or vacuum-infiltration, could easily leak from tissue, indicating that Ca externally applied was probably located in the free space, and not involved with maintaining cell structure and function.

TL;DR: Callus tissue cultures have been established from the excised segments of the inflorescence, flower stalks, denuded flower, bract, perianth and leaf segments of 2 cultivars of Gladiolus grandiflorus, and of all the explants and the media tested, the best callus was obtained.

TL;DR: In this article, the contents of 5 tropical leafy vegetables, Amaranthus caudatus (A), Cucurbita pepo (C), Telfairia occidentalis (T), Solanum aethiopicum (Sa) and Solanumm macrocarpon (Sm), were analysed for their contents of calcium (Ca), phosphorus (P), potassium (K), magnesium (Mg), sodium (Na), zinc (Zn), iron (Fe), manganese (Mn), copper (Cu) and chloride (Cl).

TL;DR: In this article, the authors evaluated the ripening of d'Anjou pears stored at −1.1°C for 15 days following storage for 1-8 months.

TL;DR: Improvements have been brought to in vitro micrografting by dipping the seeds of the rootstock in concentrated solutions of benzylaminopurine and adding DIECA to the cut sections avoids oxidation and, together with the insertion of a piece of agar between apex and rootstock, increases the success of microGrafting.

TL;DR: In this article, the oxygen content of recirculating nutrient solutions was measured in July and August, together with the amounts of acid required to maintain a constant pH in the solution and the rates of uptake of water and potassium.