relation: http://oar.icrisat.org/3033/ title: Genotype and environmental effects on resistance to late leafspot in groundnut creator: Ntare, B R creator: Waliyar, F subject: Groundnut description: In 1995 and 1996, 15 advanced breeding lines of groundnuts along with a local check were evaluated in a replicated trial for yield and reaction to late leafspot (Cercosporidium personatum [Mycosphaerella berkeleyi]) at Gaya in Niger and Bagauda in Nigeria. Variation among locations within years was significant for pod yield and late leafspot as well as among genotypes. The genotype×year interaction variance for late leafspot was one-fifth the magnitude of the genetic variance while genotype×location variance was larger that the genetic variance. The genotype×year×location variance was two-thirds the magnitude of the genetic variance. Broad-sense heritability was low for pod yield (46%), high for seed weight (84%) and shelling percentage (86%) and intermediate for late leafspot (53%). The results indicated the need to test breeding lines for resistance to late leafspot in more years and locations. High yielding late leafspot resistant lines were found publisher: African Crop Science Society date: 1999 type: Article type: PeerReviewed format: application/pdf language: en identifier: http://oar.icrisat.org/3033/1/Genotype_and_environmental_effects_on_resistance_to_late_leafspot_in_groundnut.pdf identifier: Ntare, B R and Waliyar, F (1999) Genotype and environmental effects on resistance to late leafspot in groundnut. African Crop Science Journal, 7 (2). pp. 109-115. ISSN 1021-9730 relation: http://www.ajol.info/index.php/acsj/article/view/27761