2011 Fiscal Year Final Research Report

Study on dehydration characteristics of panicles by far infrared radiation and resistance to abiotic stresses in rice

Research Project

Project/Area Number	21658006
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Crop science/Weed science
Research Institution	Okayama University
Principal Investigator	TSUDA Makoto 岡山大学, 大学院・自然科学研究科, 教授 (30144231)
Project Period (FY)	2009 – 2011
Keywords	イネ / 白穂 / 遠赤外線乾燥法 / 穂の水分 / 非生物的ストレス / 塩害
Research Abstract	Rice yield decreases with the occurrence of white head under abiotic stress conditions. To explore the characters that may be responsible for the white head, the water fraction of panicle was evaluated by a new dehydration method using far infrared radiation. The water included in the panicle comprises several fractions of water. Two of them were fraction-1 and fraction-2, which evaporated faster than fraction-1. Fraction-2 was more stable than fraction-1 in terms of developmental stages and meteorological conditions. It was observed that cultivars had a larger ratio of fraction-1/2 tended to have white heads in saline soils.

(2 results)