A new method for evaluation of the resistance to rice kernel cracking based on moisture absorption in brown rice under controlled conditions

We developed and evaluated the effectiveness of a new method to detect differences among rice cultivars in their resistance to kernel cracking. The method induces kernel cracking under laboratory controlled condition by moisture absorption to brown rice. The optimal moisture absorption conditions we...

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Veröffentlicht in:Breeding science. - 1998. - 65(2015), 5 vom: 15. Dez., Seite 381-7
1. Verfasser: Hayashi, Takeshi (VerfasserIn)
Weitere Verfasser: Kobayashi, Asako, Tomita, Katsura, Shimizu, Toyohiro
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Breeding science
Schlagworte:Journal Article kernel cracking late harvest method moisture absorption rice varietal differences
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520 |a We developed and evaluated the effectiveness of a new method to detect differences among rice cultivars in their resistance to kernel cracking. The method induces kernel cracking under laboratory controlled condition by moisture absorption to brown rice. The optimal moisture absorption conditions were determined using two japonica cultivars, 'Nipponbare' as a cracking-resistant cultivar and 'Yamahikari' as a cracking-susceptible cultivar: 12% initial moisture content of the brown rice, a temperature of 25°C, a duration of 5 h, and only a single absorption treatment. We then evaluated the effectiveness of these conditions using 12 japonica cultivars. The proportion of cracked kernels was significantly correlated with the mean 10-day maximum temperature after heading. In addition, the correlation between the proportions of cracked kernels in the 2 years of the study was higher than that for values obtained using the traditional late harvest method. The new moisture absorption method could stably evaluate the resistance to kernel cracking, and will help breeders to develop future cultivars with less cracking of the kernels 
650 4 |a Journal Article 
650 4 |a kernel cracking 
650 4 |a late harvest method 
650 4 |a moisture absorption 
650 4 |a rice 
650 4 |a varietal differences 
700 1 |a Kobayashi, Asako  |e verfasserin  |4 aut 
700 1 |a Tomita, Katsura  |e verfasserin  |4 aut 
700 1 |a Shimizu, Toyohiro  |e verfasserin  |4 aut 
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