ARS | Publication request: Identification of Low Postharvest Yellowing Rice Cultivars

Submitted to: Rice Technical Working Group Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: January 14, 2010
Publication Date: February 22, 2010
Citation: Miller, H.B. 2010. Identification of Low Postharvest Yellowing Rice Cultivars. Rice Technical Working Group Meeting Proceedings. CDROM p. 114.

Technical Abstract: Postharvest yellowing (PHY), or stackburn, reduces the value of rice. The identification of a low PHY rice cultivar would be desirable for breeding purposes, as well as for understanding of the PHY phenomenon. A laboratory method was used to survey different cultivars of rice for their ability to undergo PHY. Milled rice was placed in test tubes, the rice was rinsed with water, then heated to 70C for four days. Color was measured with a colorimeter. Two different cultivars, Terunishiki and Akinishiki, have low levels of PHY, consistent across two growing seasons and could be valuable for further studies and as breeding material.