Showing papers in "Scientia Horticulturae in 1981"

TL;DR: The introduction of some additional new techniques may possibly reduce the cost and broaden the range of plants that can be propagated economically in vitro and its adaptation to commercial practices.

TL;DR: The most suitable temperature regime for floral behaviour, pollen tube growth and embryo development was 25 20, and the ovules at 17 12 had an embryosac penetrated by a pollen tube.

TL;DR: The hypocotyl of 3-week-old seedlings of pepper was cut into 6 equal-length segments from the root to the cotyledon which developed into normal plantlets which could be grown to mature plants by the usual techniques.

TL;DR: The combination of 5 μM BAP and 1 μM NAA in the basal culture medium of Linsmaier and Skoog induced maximum bulblet formation per explant and succeeded in inducing bud differentiation on the ovary- and leaf-derived explants and in callus culture.

TL;DR: Cytological analyses performed on root tips of 20 randomly chosen plantlets showed that all the analysed plants contained the diploid number of chromosomes and the method described seems to be suitable for rapid propagation of globe artichoke.

TL;DR: The data are in agreement with the proposal that aminooxyacetic acid inhibits C2H4 biosynthesis, and the inhibitor had a slight delaying effect on the response of the flowers to exposure to C 2H4.

TL;DR: Results of experiments with cultivars ‘Pirate’, ‘Enchantment’ and ‘Connecticut King’ suggest an inverse relationship between the in vivo propagation rate by scaling and the NAA demand for optimal adventitious regeneration in vitro.

TL;DR: The findings may indicate that both the leaves and the floral organs provide auxin-like substances which control the elongation growth of the stem.

TL;DR: Warm, dry storage shortened the length of dormancy while still maintaining a high level of emergence in Capsicum, and fruit age was shown to affect dormancy.

TL;DR: This article treated citrus trees with foliar sprays of iron compounds with a low (20 dynes cm −1 ) surface-tension surfactant to correct lime-induced iron deficiency chlorosis.

TL;DR: In vitro propagation method resulted in the production of 2220 plantlets from 209 explants, 4 months after incubation, and the effects of X-ray dose, genotype and explant position on multiple shoot development and root formation of sub-cultured shoots were examined.

TL;DR: In this paper, the ability of peaches to evolve CO 2 and ethylene (C 2 H 4 ) normally upon removal from storage at 1° C to air at 20° C was preserved when 20% CO 2 was applied during storage.

TL;DR: The pre-treatment could appreciably improve the emergence percentage of seeds sown in wet soil and the weight of plants from certain seed treatments was significantly greater after 14 weeks' growth than that from untreated seeds.

TL;DR: In this paper, the number of shoots and the rate of their renewal were significantly higher in plants grown in a greenhouse cooled by evaporative coolers then in an uncooled greenhouse.

TL;DR: It is postulated that the phase of growth during which the curd-initiation period can be shortened by cold treatment is specific for each cultivar, and other data were used to confirm this.

TL;DR: A method for the rapid propagation of raspberry ( Rubus idaeus cultivar ‘Heritage) is described, involving tip-culture, shoot elongation, multiplication by small cuttings, root initiation and transfer of plants to soil.

TL;DR: Data suggest that root pressure flow is required to move adequate amounts of water-soluble Ca to the wrapper leaves to prevent tipburn of Chinese cabbage.

TL;DR: Callus cultures established from the basal region of in vitro-obtained shoot buds on MS medium supplemented with CH + CW + NAA regenerated shoot buds and optimum regeneration was obtained on MS + CW (5% v/v) medium.

TL;DR: Optimum timing and number of treatments provided better control of r Russet than high concentrations of gibberellins, although in some cases, higher doses improved russet control.

TL;DR: The germination and growth of Brassica oleraceae var.

TL;DR: Anthers of 2 tetraploid Rosa species were plated on selected basis media, supplemented with various amounts of auxins and kinetin, at different bud stages and using various light conditions, and cytological examination showed that most cells of both species had 2 n =14 chromosomes and thus were of pollen origin.

TL;DR: The application of fruit-thinning chemicals to ‘King of the Pippins’ suppressed the early increase of GAs in diffusates, which normally occurs during the second week after full bloom, and the thinning-treatments caused no real change in the amount of extractable GAs, which was very similar in fruits from both cultivars.

TL;DR: Plants have been regenerated from anthers of Primula obconica frozen in liquid nitrogen for 5 minutes, and cultured on synthetic media and there were two modes of plant development, directly from pollen-embryos and indirectly through the differentiation of callus.

TL;DR: In this paper, the effect of various combinations of dinitro-o-cresol (DNOC) and narrow distillation-range mineral oil (NRO) was tested during 4 consecutive years on breaking bud-rest and on fruiting of ‘Golden Delicious’ apple trees under mild winter conditions.

TL;DR: Comparing incubation environments, the best germination and seedling survival occurred in the dark on either Norstog or Thomale GD, suggesting that increased production of Paphiopedilum from seed may require germinationand early seedling growth in darkness.

TL;DR: The general and specific combining-ability variances indicated that the role of non-additive gene action for most of the characteristics and heterosis breeding for the improvement of these traits have been enhanced.

TL;DR: Differentiation of plantlets has been obtained in ‘Kew’ × ‘Queen’ hybrid embryo callus of pineapple and shoot-bud differentiation was observed in sub-cultured callus.

TL;DR: Results of pruning-experiments showed no significant differences in winter flower production between selective pruning and hedging, and winter production was related to the degree of the plant cut-back during the spring.

TL;DR: Fresh Pinus radiata bark will impair the growth of seedlings and struck cuttings of some species but not of Monstera pertusa, Camellia sasanqua ‘Lucinda’, Rhodondendron ‘Sir Robert Peel’ or Pilea cadierei.

TL;DR: The onion plant was shown to be tolerant to water stress, being able to grow and produce seed yields in arid zones with limited amounts of rainfall and without irrigation, under these conditions, large mother bulbs and high plant density gave the best results.