Effects of low temperature on the quality of sugarcane in Higashi-Mikawa region
| Autor: | Okada, Syozo, Ueno, Masami, Taira, Eizo, Watanabe, Kenta, Kawamitsu, Yoshinobu, NPO亜熱帯バイオマス利用研究センター |
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| Jazyk: | japonština |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | 沖縄農業. 49(1):21-29 |
| ISSN: | 1344-1477 |
| Popis: | 本研究では,低温と霜がサトウキビの収量と品質に与える影響を明らかにし，温帯地域におけるサトウキビ生産の可能性を検討した．2013年度～2015年度の3年間,東三河（北緯34° 48′ 11″，東経137° 21′ 51″）と沖縄（北緯26° 15′ 8″，東経127° 45′ 50″）においてサトウキビの品質を9月〜3月に毎月測定した．東三河で栽培したNiF8の収量は沖縄とほぼ同じであった．強い降霜の前の12月までは沖縄と同様に甘蔗糖度は上昇し，1月以降明確に低下する傾向が見られた．増減の傾向と最大糖度の出現時期は年度によって大きな差があった．甘蔗糖度は－2.0℃ 以下の低温，もしくは，0℃よりわずかに低い気温でも持続時間が長いと影響を受けた．沖縄では3月や5月まで収穫されているが，東三河では12月までに収穫する必要があることがわかった． In this study, we revealed the effects of low temperature and frost on yield and quality in order to examine the potential of the sugarcane production in the temperate area of Japan. Sugarcane was cultivated during three years since 2013 to 2015 in Higashi-Mikawa (34°48'N,137°22'E) and Okinawa (26°15'N,127°46'E). Sugar content, that is, pol in cane (denoted as PIC) was measured every month from September to March. They yield of NiF8 of the spring plant cane in Higashi-Mikawa was almost same as that of Okinawa. PIC of Higashi-Mikawa increased until December before the strong frost, which was a similar trend of Okinawa. Then, it decreased clearly from January. The trend of increase-decrease and the appearance timing of the maximum PIC were largely different by year The PIC was strongly affected by the strong low temperature below -2.0℃or long holding duration of little bit lower temperature than O℃. In other words, it is affected by the both of strength and holding duration of the low temperature. Sugarcane in Higashi-Mikawa region should be harvested by December, though it is harvested until March or May in Okinawa. |
| Databáze: | OpenAIRE |
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