• Everton Jaison
• Daiton Mawira
• Nathan Sangombe

CIMMYT maize inbred lines selected for tolerance to maize streak virus, grey leaf spot, rust and turcicum were used in this project. Yield was very important trait and was considered as a check to find the ability of different lines to tolerant various diseases. In this study several inbred lines were evaluated for per se performance against disease tolerant and yield potential under different environmental conditions of Zimbabwe. The trial was carried out at Harare CIMMYT (misting), Art Farm, Devonia and Kadoma. The trial was carried out during the 2013/2014 summer season. A total of 35 entries were planted in an alpha (0.1) lattice design with two replications and five (two row) plots per incomplete block. Data was collected on several traits that is grain yield and diseases from across sites. The data was analyzed using GenSat and Fieldbook softwares. Significant variation was noted at all the sites for grain yield (p<0.001). Entries (genotypes) were all affected by environment as there was a highly significant difference of p<0.001 for the GLS, turcicum, rust and MSV from all the sites. Same entries had different yield. However, the following lines proved to be ready for release for public and private seed companies to use them in their breeding programs. TL115986, TL123981, TL1311661, TL115989, VL0511320, TL124615, TL115974, TL117079, TL115983 and TL115993. The other lines that had produced below average yield can undergo further trials until they have proved to be stable.

Key words: Inbred lines, Significant difference, tolerance, yield.

"Evaluating Performance Of CIMMYT Maize Inbred lines Against Maize Streak Virus (MSV), Grey Leaf Spot (GLS), Rust (PS), Turcicum (ET) And Yield Potential In Zimbabwe.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 9, page no.e182-e207, September-2023, Available :http://www.jetir.org/papers/JETIR2309422.pdf

"Evaluating Performance Of CIMMYT Maize Inbred lines Against Maize Streak Virus (MSV), Grey Leaf Spot (GLS), Rust (PS), Turcicum (ET) And Yield Potential In Zimbabwe.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 9, page no. ppe182-e207, September-2023, Available at : http://www.jetir.org/papers/JETIR2309422.pdf