2024-03-29T14:28:18Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00010940
2023-02-03T00:43:18Z
1016:1018:1070:1071
Effects of fruit skin and water temperature during soaking before germination on the emergence rates of common buckwheat
発芽前に冠水した普通ソバの出芽率に及ぼす果皮と水温の影響
Sekinuma, Mikio
Kato, Futoshi
Sasaki, Futoshi
Takeda, Satomi
Inoue, Naoto
Kasuga, Shigemitsu
Dehulling
Emergence
Fagophyrum esculentum
Fruit skin
Water temperature
The studies focused effects of the presence of fruit skin (hull or pericarp) and water temperature during water soaking before germination on the emergence rates of common buckwheat (Fagophyrum esculentum Moench) after seeding. We aimed to understand the mechanisms underlying the poor emergence rates that have been observed after water flooding before germination. Shinano No.1 was exposed to water soaking treatments at temperatures of 10,15,20, or 25℃ for 3 days. After soaking, the seeds were grown at 20℃, and the percentages of emerged seedlings were investigated 7 days after seeding. Dehulled seeds and normal seeds were soaked for 4 days at 25℃, and the contents of dissolved oxygen were measured in the water. The emergence rates of normal intact seeds (fruits)decreased significantly (p<0.01)with an increase in soaking water temperature before germination. The emergence rates of dehulled seeds improved after removing the fruit skin, and it reached 70%,even at 25℃.Soaking treatment for 96 h at 25℃ decreased the emergence rates of normal seeds and dehulled seeds. The emergence rate of normal seeds was significantly lower than that of dehulled seeds (p<0.001). Moreover, there was no difference in the emergence rates of dehulled seeds between plots with or without daily water replacement. The contents of dissolved oxygen in the water at 25℃ did not differ between normal seeds and dehulled seeds after 50h. These results suggested that high temperatures affected embryo viability and that the relative mechanical resistance of the fruit skin on the embryo directly affected the seed emergence rate.
Article
信州大学農学部AFC報告 13: 113-118 (2015)
信州大学農学部附属アルプス圏フィールド科学教育研究センター
2015-03-31
eng
departmental bulletin paper
VoR
http://hdl.handle.net/10091/18340
https://soar-ir.repo.nii.ac.jp/records/10940
1348-7892
AA11845727
信州大学農学部AFC報告
13
113
118
https://soar-ir.repo.nii.ac.jp/record/10940/files/AFCbulletin13-16.pdf
application/pdf
1.2 MB
2015-09-25