Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)

Preharvest sprouting of buckwheat (Fagopyrum esculentum Moench) is an important problem, but cultivar differences in preharvest sprouting and their causes have not been investigated. We detected cultivar differences under natural field conditions. Preharvest sprouting of three cultivars was signific...

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Main Authors: Takahiro Hara, Takahisa Tetsuka, Katsuhiro Matsui, Hiroki Ikoma, Akira Sugimoto, Hiroyuki Shiratsuchi
Format: Article
Language:English
Published: Taylor & Francis Group 2008-01-01
Series:Plant Production Science
Subjects:
Online Access:http://dx.doi.org/10.1626/pps.11.82
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author Takahiro Hara
Takahisa Tetsuka
Katsuhiro Matsui
Hiroki Ikoma
Akira Sugimoto
Hiroyuki Shiratsuchi
author_facet Takahiro Hara
Takahisa Tetsuka
Katsuhiro Matsui
Hiroki Ikoma
Akira Sugimoto
Hiroyuki Shiratsuchi
author_sort Takahiro Hara
collection DOAJ
description Preharvest sprouting of buckwheat (Fagopyrum esculentum Moench) is an important problem, but cultivar differences in preharvest sprouting and their causes have not been investigated. We detected cultivar differences under natural field conditions. Preharvest sprouting of three cultivars was significantly lower than that of the current main cultivar. Seeds collected before rainfall were threshed and incubated on a wet filter paper in a petri dish for 10 days at 10, 20, 30 and 40ºC in the dark, or at an alternating light and temperature condition of 8 h light at 30ºC and 16 h darkness at 20ºC. Germination was promoted by a higher temperature except for 40ºC, suggesting that the risk of preharvest sprouting in buckwheat is higher at a relatively higher temperature. The risk of preharvest sprouting in the field was highly correlated with germination at 20ºC (r = 0.98***) and 30ºC (r = 0.99***) in the dark, suggesting that germination test can be used to predict preharvest sprouting in the field. Preharvest sprouting was significantly correlated (r = −0.77**) with main stem length, suggesting that ecotype is partly responsible for this phenomenon.
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spelling doaj.art-3a8ad2e2f9a14ff491b6b765248cdeec2022-12-22T00:00:58ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082008-01-01111828710.1626/pps.11.8211644873Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)Takahiro Hara0Takahisa Tetsuka1Katsuhiro Matsui2Hiroki Ikoma3Akira Sugimoto4Hiroyuki Shiratsuchi5National Agriculture and Food Research OrganizationNational Agriculture and Food Research OrganizationNational Agriculture and Food Research OrganizationNational Agriculture and Food Research OrganizationNational Agriculture and Food Research OrganizationNational Agriculture and Food Research OrganizationPreharvest sprouting of buckwheat (Fagopyrum esculentum Moench) is an important problem, but cultivar differences in preharvest sprouting and their causes have not been investigated. We detected cultivar differences under natural field conditions. Preharvest sprouting of three cultivars was significantly lower than that of the current main cultivar. Seeds collected before rainfall were threshed and incubated on a wet filter paper in a petri dish for 10 days at 10, 20, 30 and 40ºC in the dark, or at an alternating light and temperature condition of 8 h light at 30ºC and 16 h darkness at 20ºC. Germination was promoted by a higher temperature except for 40ºC, suggesting that the risk of preharvest sprouting in buckwheat is higher at a relatively higher temperature. The risk of preharvest sprouting in the field was highly correlated with germination at 20ºC (r = 0.98***) and 30ºC (r = 0.99***) in the dark, suggesting that germination test can be used to predict preharvest sprouting in the field. Preharvest sprouting was significantly correlated (r = −0.77**) with main stem length, suggesting that ecotype is partly responsible for this phenomenon.http://dx.doi.org/10.1626/pps.11.82AgroecotypeBuckwheat flour qualityDifferentiationGermination testSeed dormancySelectionSummer cultivationTemperature.
spellingShingle Takahiro Hara
Takahisa Tetsuka
Katsuhiro Matsui
Hiroki Ikoma
Akira Sugimoto
Hiroyuki Shiratsuchi
Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)
Plant Production Science
Agroecotype
Buckwheat flour quality
Differentiation
Germination test
Seed dormancy
Selection
Summer cultivation
Temperature.
title Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)
title_full Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)
title_fullStr Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)
title_full_unstemmed Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)
title_short Evaluation of Cultivar Differences in Preharvest Sprouting of Common Buckwheat (Fagopyrum esculentum Moench)
title_sort evaluation of cultivar differences in preharvest sprouting of common buckwheat fagopyrum esculentum moench
topic Agroecotype
Buckwheat flour quality
Differentiation
Germination test
Seed dormancy
Selection
Summer cultivation
Temperature.
url http://dx.doi.org/10.1626/pps.11.82
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