Evaluation of Maize Genotypes for Resistance against Gray Leaf Spot In Hills of Nepal

• DOI: 10.3126/ijasbt.v3i3.13216
• Publication Date: 2015-09-25T17:00:54Z
• Authors: Tirtha Raj Rijal; Jiban Shrestha; Bashistha Acharya; Narayan Bahadur D...; Ajay Karki; Ambika Aryal; Pratik Hamal
• Keywords: Spots

Maize crop is affected by several diseases, but Gray leaf spot (GLS), the major disease that threat maize production in every year mid-hills and high-hills of Nepal. To identify source resistant on gray genotypes were screened/evaluated under hot spots during 2013 2014 summer seasons across hill environment In screening nursery both exotic(CIMMYT China) NMRP developed included screened at Pakhribas, Dhungkharka, Supping Salyan & replicated conditions. The identified high yielding Dhungkharka YML58/(CML226/CATETO//CML226/CATETO)F2-B-1-2-B,YML32/(P147-F2-108-S7/P45-C8-76-S5)-F2-B-30-1-3, YML32/Cel FSRYS9956-B-3-2-4-B YML58/(G34/36/G33TSR)-F2-B-4-1-B. case none showed reaction against GLS eight namely; YML23/P502-C2-58-1-1-2-5-B, YML23/P502-C2-185-3-4-1-3-B-1-B, YML23/P502-C3-F2-10-8-1-1-B, YML23/GLSI01P502-B-25-2-B, YML23/MBR-C5W-F108-2-3-1-B, YS12Q-189, YS12Q-33 YS12Q-189 reacted MR reaction. At Pakhribas two (R) YML23/GLS101HGA-B-4-1-B other ten responded None tested entries Suping four ZM-401, 07SADVI, ZM-627 BGBYPOP GLS. During season a total 20 exotic (CIMMYT India) regions Salyan. From result genotype P501SRCO/P502SRCO was recorded for (1.3) three 05SADVI, Entry # 36 27 nine ZM-627, TLBRSO7F16, ENTRY#33, ENTRY#24, ENTRY#32 ENTRY#21 revealed six ACROSS-9942/ACROSS-9944, BGBYPOP, ENTRY 24 ENTRY# 32 07SADVI produced significantly highest grain yield (8638 kg/ha).Int J Appl Sci Biotechnol, Vol 3(3): 504-512