Article citationsMore>>

Wilson Jr., C.E., Slaton, N.A., Frizzell, D.L., Boothe, D.L., Ntamatungiro, S. and Norman, R.J. (2001) Tolerance of New Rice Cultivars to Straighthead. In: Norman, R.J. and Beyrouty, C.A., Eds., B.R. Wells Rice Research Studies 2000. AR Agri. Exp. Sta. Res. Ser. 485, University of Arkansas, Fayetteville, 428-436.

has been cited by the following article:

• TITLE: Straighthead and Agronomy Characters Testing for Selected Parent Lines and Hybrid Combinations at UAPB in 2011-2012

  AUTHORS: Bihu Huang, Zongbu Yan

  KEYWORDS: Straighthead, Hybrids, Natural Field of Straighthead Occurrence

  JOURNAL NAME: American Journal of Plant Sciences, Vol.7 No.10, July 22, 2016

  ABSTRACT: Straighthead disease is a physiological disorder in rice and the most widespread non-fungal disease of the U.S. straighthead greatly reduces rice yield. Straighthead studies were most conducted in the artificial field which was Arsenic amendment plots due to the similarity of straighthead symptoms of Arsenic damage. To evaluate the straighthead disease resistance in natural condition, 46 rice lines, including 24 inbred lines and 22 hybrid combinations which were developed from breading program, were chosen for straighthead and agronomy characters testing in a native soil where straighthead naturally induced in the past years at University of Arkansas at Pine Bluff (UAPB), Arkansas in 2011 and 2012. The straighthead of rice were rated from 0 to 9 levels, and 0 was the least straighthead disorder and 9 was the most severe straighthead disorder. Cocodrie (CCDR) was used as the check in this study. The results of 2011 showed that the yields of 8 entries were higher than the check CCDR. The straighthead scores of these 8 entries were 0 - 1 which indicated their resistance to straighthead. The rest of the entries had lower yields than check CCDR with straighthead scores 5 - 6 which indicated their moderate susceptibility to straighthead. The yields were negatively related to the straighthead scores (r = -0.9178, P