Influence of high daytime temperature during the grain filling stage on fissure formation in rice

A.S.M.T. Abayawickrama, Russell F. Reinke, Melissa Anne Fitzgerald, John D.I. Harper, Geoffrey E. Burrows

Research output: Contribution to journalArticle

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Abstract

High daytime temperatures during the grain filling stage in rice have negative impacts on milling quality traits. In this study, we used growth chambers to evaluate the influence of high daytime temperature (33 °C) during grain filling, together with grain moisture content at harvest (26%, 18% and 15%), on grain fissure formation. Varietal susceptibility to fissure formation was also evaluated by exposing grains to high temperature at different grain filling stages (milky, dough, maturing). Two fissure resistant varieties: Cypress (long-grain) and Reiziq (medium-grain) and susceptible varieties: YC53-00-7 (long-grain) and Baru (medium-grain) were compared. The average head rice yield (HRY) of Cypress declined from 62.7% at 25 °C to 53.5% at 33 °C, while Reiziq declined from 56.2% (25 °C) to 47.4% (33 °C). Both were significantly higher than the HRY of YC53-00-7 (39.2% and 24.9%) and Baru (39.3% and 31.7%) at 25 °C and 33 °C, respectively. When grains were drier at harvest (15% cf. 26%) there was a greater reduction in HRY. When the four varieties were exposed to high temperature, the highest average reduction of HRY was recorded at 21 days after heading. It is important to choose an optimal sowing date to avoid coincidence of the final grainfilling stage with high temperatures, in order to minimize milling quality losses.
Original languageEnglish
Pages (from-to)256-262
Number of pages7
JournalJournal of Cereal Science
Volume74
DOIs
Publication statusPublished - Feb 2017

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filling period
rice
Temperature
Head
Cupressus
temperature
milling quality
varietal resistance
Oryza
sowing date
heading
growth chambers
dough
Growth
water content
Moisture

Cite this

Abayawickrama, A.S.M.T. ; Reinke, Russell F. ; Fitzgerald, Melissa Anne ; Harper, John D.I. ; Burrows, Geoffrey E. / Influence of high daytime temperature during the grain filling stage on fissure formation in rice. In: Journal of Cereal Science. 2017 ; Vol. 74. pp. 256-262.
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abstract = "High daytime temperatures during the grain filling stage in rice have negative impacts on milling quality traits. In this study, we used growth chambers to evaluate the influence of high daytime temperature (33 °C) during grain filling, together with grain moisture content at harvest (26{\%}, 18{\%} and 15{\%}), on grain fissure formation. Varietal susceptibility to fissure formation was also evaluated by exposing grains to high temperature at different grain filling stages (milky, dough, maturing). Two fissure resistant varieties: Cypress (long-grain) and Reiziq (medium-grain) and susceptible varieties: YC53-00-7 (long-grain) and Baru (medium-grain) were compared. The average head rice yield (HRY) of Cypress declined from 62.7{\%} at 25 °C to 53.5{\%} at 33 °C, while Reiziq declined from 56.2{\%} (25 °C) to 47.4{\%} (33 °C). Both were significantly higher than the HRY of YC53-00-7 (39.2{\%} and 24.9{\%}) and Baru (39.3{\%} and 31.7{\%}) at 25 °C and 33 °C, respectively. When grains were drier at harvest (15{\%} cf. 26{\%}) there was a greater reduction in HRY. When the four varieties were exposed to high temperature, the highest average reduction of HRY was recorded at 21 days after heading. It is important to choose an optimal sowing date to avoid coincidence of the final grainfilling stage with high temperatures, in order to minimize milling quality losses.",
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Influence of high daytime temperature during the grain filling stage on fissure formation in rice. / Abayawickrama, A.S.M.T.; Reinke, Russell F.; Fitzgerald, Melissa Anne; Harper, John D.I. ; Burrows, Geoffrey E.

In: Journal of Cereal Science, Vol. 74, 02.2017, p. 256-262.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Influence of high daytime temperature during the grain filling stage on fissure formation in rice

AU - Abayawickrama, A.S.M.T.

AU - Reinke, Russell F.

AU - Fitzgerald, Melissa Anne

AU - Harper, John D.I.

AU - Burrows, Geoffrey E.

N1 - Includes bibliographical references.

PY - 2017/2

Y1 - 2017/2

N2 - High daytime temperatures during the grain filling stage in rice have negative impacts on milling quality traits. In this study, we used growth chambers to evaluate the influence of high daytime temperature (33 °C) during grain filling, together with grain moisture content at harvest (26%, 18% and 15%), on grain fissure formation. Varietal susceptibility to fissure formation was also evaluated by exposing grains to high temperature at different grain filling stages (milky, dough, maturing). Two fissure resistant varieties: Cypress (long-grain) and Reiziq (medium-grain) and susceptible varieties: YC53-00-7 (long-grain) and Baru (medium-grain) were compared. The average head rice yield (HRY) of Cypress declined from 62.7% at 25 °C to 53.5% at 33 °C, while Reiziq declined from 56.2% (25 °C) to 47.4% (33 °C). Both were significantly higher than the HRY of YC53-00-7 (39.2% and 24.9%) and Baru (39.3% and 31.7%) at 25 °C and 33 °C, respectively. When grains were drier at harvest (15% cf. 26%) there was a greater reduction in HRY. When the four varieties were exposed to high temperature, the highest average reduction of HRY was recorded at 21 days after heading. It is important to choose an optimal sowing date to avoid coincidence of the final grainfilling stage with high temperatures, in order to minimize milling quality losses.

AB - High daytime temperatures during the grain filling stage in rice have negative impacts on milling quality traits. In this study, we used growth chambers to evaluate the influence of high daytime temperature (33 °C) during grain filling, together with grain moisture content at harvest (26%, 18% and 15%), on grain fissure formation. Varietal susceptibility to fissure formation was also evaluated by exposing grains to high temperature at different grain filling stages (milky, dough, maturing). Two fissure resistant varieties: Cypress (long-grain) and Reiziq (medium-grain) and susceptible varieties: YC53-00-7 (long-grain) and Baru (medium-grain) were compared. The average head rice yield (HRY) of Cypress declined from 62.7% at 25 °C to 53.5% at 33 °C, while Reiziq declined from 56.2% (25 °C) to 47.4% (33 °C). Both were significantly higher than the HRY of YC53-00-7 (39.2% and 24.9%) and Baru (39.3% and 31.7%) at 25 °C and 33 °C, respectively. When grains were drier at harvest (15% cf. 26%) there was a greater reduction in HRY. When the four varieties were exposed to high temperature, the highest average reduction of HRY was recorded at 21 days after heading. It is important to choose an optimal sowing date to avoid coincidence of the final grainfilling stage with high temperatures, in order to minimize milling quality losses.

KW - Breakage

KW - Fissuring

KW - Milling

KW - Oryza sativa

U2 - 10.1016/j.jcs.2017.02.013

DO - 10.1016/j.jcs.2017.02.013

M3 - Article

VL - 74

SP - 256

EP - 262

JO - Journal of Cereal Science

JF - Journal of Cereal Science

SN - 0733-5210

ER -