Fruit Growth and Physiological Behavior of ^|^lsquo;Kosui^|^rsquo; Japanese Pear in Plastic House
Year: 1989
Type: article
Abstract: The fruit growth and physiological behavior of Japanese pear (Pyrus serotina Rehder) cv.Kosui under plastic were investigated.Treated trees were covered with ethlene vinylacetate film from 13 th March to 20 th May.The daily maximum temperature and soil temperature under plastic were 2-6°C and 1-.-2t higher than those in the open field during the treatment period.Budbreak and flowering time were advanced by about 10 days due to a relatively high temperature.First harvest time was on 4 th August under plastic and 17 th August in the open field.Fruits grown under plastic with GA paste treatment were the largest in all treatments.Shape index (height/width) of the fruit grown under plastic was greater than that in the open field.Patterns of glucose and sorbitol accumulation in fruits grown under plastic were also different from those in the open field.Treated trees had 15% larger leaves and 220 longer shoots than those in the open field and leaf area indices (LAI) were 2.53 and 2. 03, respectively.Carbohydrate content in current shoots grown under plastic was lower than that in the open field in autumn .The activities of root respiration under plastic were higher than those in the open field during summer season.
DOI: 10.2503/jjshs.58.499
Authors: Koji UCHINO, Hiroshi GEMMA, Masayuki FUKUSHIMA, Chiaki OOGAKI
Institution: University of Tsukuba
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W201724389