Contents Menu

Effects of Low Temperature at Night during Nursery Period on the Early-Maturing Varieties of Rice.

Bulletin of the Faculty of Agriculture, Yamaguchi University Volume 7 Page 341-348
published_at 1956
Title
水稲早生品種に対する苗代期間の夜間低温処理の影響
Effects of Low Temperature at Night during Nursery Period on the Early-Maturing Varieties of Rice.
Creators Doi Yataro
Creators Yamagata Makoto
Source Identifiers
Creator Keywords
水稲早生品種 夜間低温処理
In order to investigate the physiology of rice varieties for the purpose of establishing the early-or late-sowing system in the warmer region of Japan,the effects of low temperature at every night during nursery period were examined. This experiment was carried out with 4 early-maturing varieties.The night temperature and day length during the nursery period (34 days)were as follows : (1)Low-temperature(average 8.1℃.)and short-day treatment at every night(16 hours). (2)High-temperature(average 20.3℃.)and short-day treatment at every night(16 hours). (3) Natural temperature and day length. 2.The premature heading of the varieties which were sensible to hightemperature or short-day treatment was hindered by the low temperature inspite of the short-day condition. 3.When the well nourished condition was given after the low-temperaturetreatment,it was generally observed that the heading time retarded and the total weight of ears on each plant increased,accompanied by the increase innumber of leaves in the main stem. 4. The nutrient supply to respective plant body after the low-temperature treatment seemed to increase comparatively,because each plant had become dwarfed during the treatment. It is therefore presumed that the transition from vegetative growth to reproductive growth in this experiment was checked not only by the low temperature itself but also by the nutritive condition after the treatment.
Subjects
農学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学農学部
Date Issued 1956
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0513-1715
[NCID]AN00244250
Schools 農学部