Registration of NY195, NY212, NY215, and NY266 Anthracnose Stalk Rot Resistant Inbred Lines of Maize

摘要

Four inbred lines of maize (Zea mays L.) have been released as sources of resistance to anthracnose stalk rot [caused by Colletotrichum graminicola (Ces.) Wils.]. NY195 (Reg. No. PL-360, PI 674107), NY212 (Reg. No. PL-361, PI 674108), NY215 (Reg. No. PL-362, PI 674109), and NY266 (Reg. No. PL-363, PI 674110) were developed by Cornell University Agricultural Experiment Station, New York State College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, and released by Cornell University in 2007. All four inbreds were developed from 75% exotic: 25% temperate maize populations made available through the Germplasm Enhancement of Maize (GEM) project. The inbreds were developed by self-pollination with selection for resistance to anthracnose stalk rot and simultaneous selection for adaptation and hybrid yield potential. NY212 and NY215 showed excellent levels of stalk rot resistance; NY195 and NY266 showed good resistance. When testcrossed with Holden's tester LH198, stalk rot resistance in NY212, NY215, and NY266 was equal to or better than that of the commercial hybrids, while NY195 compared favorably to commercial hybrids for the public line cross tester RD6501/RD6502. Yield for the NY215/LH198 test cross was comparable to that of the commercial checks, while yields of other testcrosses were generally lower.