Effects of Lower Limit of Soil Water Potential on&nbsp; Grain Quality of Rice in Cold Region

LU Yandong1,2, ZHENG  Guiping2, GUO Xiaohong2, YIN Dawei1, MA Dianrong1, XU Zhengjin1, CHEN Wenfu1,*

doi:10.3969/j.issn.10017216.2011.05.010

Chinese Journal OF Rice Science >

2011 , Vol. 25 >Issue 5: 515 - 522

DOI: https://doi.org/10.3969/j.issn.10017216.2011.05.010

Research Papers

Effects of Lower Limit of Soil Water Potential on Grain Quality of Rice in Cold Region

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¹ Rice Research Institute, Shenyang Agricultural University/Key Laboratory of Northern Japonica Rice Breeding of Liaoning, Shenyang 110161, China; ²College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China;

Received date: 2010-07-01

Revised date: 2011-05-31

Online published: 2011-09-10

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Abstract

With Kenjiandao 5 and Kendao 12 as materials, the effects of intermittent watercontrolling treatments at -8 to -10 kPa of soil water potential on rice grain quality in cold region from reviving to maturity were studied in a pot experiment in a chamber rainproof by examining soil water potential with a negative pressure soil moisture meter.The results of showed that head rice rate, amylose content, setback value of grains at different positions decreased, whereas protein content, prolamin content, glutelin content, globulin content, peak viscosity value and breakdown value of grains at different positions increased. Therefore, the rice taste value decreased.

Key words： rice; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱cold region; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱soil moisture; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱grain quality

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LU Yandong1,2, ZHENG Guiping2, GUO Xiaohong2, YIN Dawei1, MA Dianrong1, XU Zhengjin1, CHEN Wenfu1,* . Effects of Lower Limit of Soil Water Potential on Grain Quality of Rice in Cold Region[J]. Chinese Journal OF Rice Science, 2011 , 25(5) : 515 -522 . DOI: 10.3969/j.issn.10017216.2011.05.010

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