[PDF] Top 20 DEVELOPMENT OF RESISTANT MAIZE GERMPLASM

... four 5m long rows, with 75 cm row to row and 25 cm plant to plant distance were used. Thus 20 plants in one row were grown. During autumn, 15 newly hatched larvae were released by a fine camel's hair brush in plant whorl ... See full document

... The NIL populations were evaluated for SLB resistance in 2009 and 2010 at the Central Crops Research Station in Clayton, North Carolina. Eight of the ten populations were evaluated in 2009 (Z037 and Z038 excluded) and ... See full document

... India, maize recorded an impressive annual growth ...attack maize crop during its different stages of growth ...of maize particularly during Rabi season in ...using resistant/least susceptible ... See full document

... of maize that occurs worldwide, but is most common and destructive in warm temperate and tropical maize growing regions (Hooker, ...Disease development is favored by warm moist weather conditions, ... See full document

... between maize hybrids of varying resistance in penetration of ...of maize against ...the development of grey leaf spot in maize but it may be produced in host cells (Shim & Dunkle ...of ... See full document

... into maize genetic diversity around the ...the maize domestication and improvement progress. Along with the development of private commercial maize breeding, more and more new elite inbred ... See full document

... hybrid development. By using a moderately resistant tester, minor QTL not detected in the lines may be detected in the topcrosses, as dominant tester alleles at other major loci would reduce segregation at ... See full document

... rice germplasm including 15 coarse and 10 fine genotypes were screened in pot experiment during 2011 including TNI, used as susceptible ...moderately resistant, seven genotypes were moderately susceptible, ... See full document

... the maize produced in the world is used as feed, 17 per cent as food and as industrial product and the remaining is used as seed ...in maize has passed through several ...for maize improvement are ... See full document

... unadapted germplasm to be as productive as adapted cultivars (Vello et ...narrow germplasm base has led to a leveling off of yield gains (Sorrells and Wilson, ...of maize (Zea mays ... See full document

... between resistant and susceptible checks (GE440 and FR1064) and between the selected lines and the unselected Cycle 0 population were tested using the ESTIMATE statement in PROC ... See full document

... not made until an outbreak occurred in the Mariana Islands in 1987, with fruit symptoms rarely observed (Wall et al., 1990). After that, disease cycle and transmission was studied (Schaad et al., 1978; Wall, 1989; Wall ... See full document

... the resistant haplotypes (Su et ...a resistant haplotype specific marker at the Pi2/9 locus and apply it for the identification of novel resistant germplasm containing new Pi2/9 ...The ... See full document

... of maize (Zea mays ...line development was largely a public effort, and public inbred lines represented a large percentage of parentage in commercial ...by maize breeders, allowing for protection of ... See full document

... hundred germplasm accessions screened for downy mildew under sick plot, UMI 39, UMI 57 and UMI 743 exhibited resistance to downy mildew, while UMI 62 and UMI 97 showed moderate resistance and all other accessions ... See full document

... Oil contents in each maize accession was determined by using Soxhlet apparatus according to method described by Ajayi et al., 2004. 15 g of each accession was placed in thimble and placed in chamber which was 2/3 ... See full document

... U.S. maize germplasm base and listed some of the more promising sources of exotic germplasm—Coastal Tropical Flint, Tuxpeño, Tuson, Tiquisate Golden Yellow, Cuban Flint, Chandelle, Haitian Yellow, ... See full document

... genetic utilization (GU) based on parental inbred cluster groups for the stiff-stalk synthetic lines (SSS, Groups 1A-1E) and non-stiff-stalk synthetic lines (NSSS, 421. Groups 2A-2E)[r] ... See full document

... sorghum, maize and barley across time, Figure 3. Maize and teosinte show a pattern that is initially counterintuitive, with some maize accessions from the US southwest and northern Mexico showing ... See full document

... Additionally, if the seed company who bred the new herbicide-tolerant cultivar had no patent on the technology, and there was no protection available via hybridization, it would, after o[r] ... See full document