Investigation to determine the cause of snow tolerance variation in barley cultivars by analyses of spike intiation earliness

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450025
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Crop production science
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: SEKI Masako 国立研究開発法人農業・食品産業技術総合研究機構, 中央農業研究センター 作物開発研究領域, 上級研究員 (50414636)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: オオムギ / 幼穂形成 / 早晩性 / 耐雪性 / 非構造性炭水化物 / 低温要求性 / 日長反応性

Outline of Final Research Achievements

To confirm the cause of snow tolerance variation in barley cultivars, concentrations of non-structural carbohydrate and stages of spike initiation were investigated before and after snow cover. It was indicated that low concentration of non-structural carbohydrate lead to heavier snow injure, that cultivars with earlier spike initiation were lower concentration of non-structural carbohydrate, and that there was the difference of concentration of non-structural carbohydrate depended on the combination of vernalization allele and photoperiod responsibility allele. It was revealed that the earliness of spike initiation was one of factors inducing the snow tolerance variation among barley cultivars.

Free Research Field

作物育種