Impact of rootstock on fruit physical properties of 'Pink Lady' apple

Abstract

During 2018 and 2019, we evaluated the main fruit physical properties [weight (FW), length (L), diameter (D), geometric mean diameter (Dg), length/diameter ratio (L/D ratio), sphericity (ph), surface area (S), fruit volume (V) and solid density (r)] of 'Pink Lady' apple grafted on dwarf M.9 T337, semi-dwarf M.26 and semi-vigour MM.106 rootstocks. Results showed that rootstocks significantly changed the properties evaluated with the exception of L/D ratio, ph and r. Among rootstocks, M.9 T33 7 produced the best properties, whereas lower and statistically similar values were obtained from M.26 and MM.106 rootstocks. All rootstocks promoted D higher than 66 mm, whereas only M.9 T337 induced D ≥70 mm. The rootstocks did not have the capacity to change the fruit shape of the 'Pink Lady' club cultivar.

Assessment of Phosphorus Mobilizing Capacity of Bacillus spp. Isolated from Mangrove Rhizospheric Sediment and its Potential Application in Aquaculture

“…The exchange of P between sediment and water is complex phenomenon influenced by bacterial activity due to the abundance of PPB, out of total microbial mass of soils (Alongi, 1988). The bacterial ALP activity of sediments varied based on the physicochemical properties of soil, organic matter content, C/N ratio and total P content (Djordjevic et al, 2003). The increase in ALP activity in sediment samples of all treatment tanks with the PPB inoculum indicated that the inoculated bacterial isolates hydrolyze the organic phosphorus by producing extracellular phosphatases in the sediment which has remitted in the increase in the available P content in sediment and phosphorus in water.…”