Showing papers by "William B. Miller published in 2018"
TL;DR: The effects of salt stress on growth parameters, ion concentration, lipid peroxidation, and enzymatic antioxidant system in honeysuckle were studied in this paper, which indicated that compatible osmolytes had been synthesised to acclimatise to the salinity.
Abstract: To evaluate their salt tolerance, two-year-old potted honeysuckle plants were exposed to 50, 100, and 150 mM NaCl, respectively. The effects of salt stress on growth parameters, ion concentration, lipid peroxidation, and the enzymatic antioxidant system in honeysuckle were studied. Salt stress reduced biomass accumulation and root activity, and also induced oxidative stress, as indicated by elevated levels of O2·-, malondialdehyde content, and electrolytic leakage. Increased salinity resulted in a slight decline in the K+ concentration in different plant tissues, but a significant boost in Na+ levels, which were much higher in roots than in other tissues. The concentrations of Ca2+ and Mg2+ increased significantly in leaves, but remained unchanged in shoots and decreased slightly in roots. Higher levels of soluble sugars and proline were observed in the plants after 30 days of NaCl treatment, suggesting that compatible osmolytes had been synthesised to acclimatise to the salinity. Under the treatm...
6 citations
TL;DR: The largest bulbs produced the greatest number of leaves per plant and the highest quality inflorescences, largely attributable to the larger number of flowers produced per inflorescence compared with smaller bulbs.
Abstract: The objective of this study was to determine effects of bulb size on production time and factors influencing crop quality in pineapple lily (Eucomis sp.) cultivars developed originally for cut flower production. The percentage of bulbs producing an inflorescence increased as bulb size increased. One hundred percent of bulbs >18 cm circumference flowered in three of the four cultivars whereas ‘Tugela Jade’ exhibited 88% flowering. The number of flowers per inflorescence increased as bulb size increased. Scape length increased as bulb size increased in ‘Reuben’. Inflorescence length increased as bulb size increased in ‘Reuben’, ‘Tugela Jade’, and ‘Tugela Gem’. Days to anthesis from planting decreased as bulb size increased in ‘Reuben’ and ‘Tugela Jade’. For all cultivars, the largest bulbs produced the greatest number of leaves per plant and the highest quality inflorescences, largely attributable to the larger number of flowers produced per inflorescence compared with smaller bulbs.