Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/11/2005
Publication Date: 3/7/2005
Citation: Ni, X., Wilson, J.P., Rajewski, J.F. 2005. Screening for chinch bug resistance in pearl millet. Meeting Abstract. http://n-fl-bugs.ifas.ufl.edu/SEB/05. Interpretive Summary: not required
Technical Abstract: Chinch bug [Blissus leucopterus leucopterus (Say) (Hemiptera: Lygaeidae)] is one of the most important insect pests for pearl millet (Pennisetum glaucum L. R. Br.) production in the southeastern and central U.S., which causes stunting and necrosis of the young seedlings, and loss of crop stand in severe infestations. Sixteen germplasm lines (including hybrids and inbreds) of pearl millet were screened in 2004 for chinch bug resistance on two planting dates at two locations (Tifton, GA and Lincoln, NE). The plants were sampled weekly in a 4-wk period of time started from the 5-leaf stage. Significant differences in insect numbers, visual stunting and necrosis ratings, crop stand losses, chlorophyll meter readings, as well as photosynthesis efficiency, were detected among the 16 germplasm lines used in the test.