Effect of Planting Date on Disease Occurrence and Yield of Three Peanut Varieties
9 Pages Posted: 18 May 2020 Last revised: 20 May 2020
Date Written: April 21, 2020
Abstract
Three on-farm verification trials focusing on the different planting dates against major peanut diseases was conducted. The study generally aimed to determine the disease reaction of three peanut varieties namely, Farmers’ variety, NSIC Pn18 and NSIC Pn15 against Cercospora leaf spot (CLS) and rust and determine their potential yield and its productivity using various planting dates (October, November and December).
Regardless of variety, the highest disease incidence of CLS and rust was obtained in the month of October while the lowest infection of CLS and rust was obtained from the month of December. The highest yield of Farmers’ variety, NSIC Pn 18 and NSIC Pn15 were obtained when plants were planted during the month of October despite the fact that during this time there was a high incidence of CLS and rust. Among the varieties used, the NSIC Pn 15 consistently and significantly produced the highest yield when grown from October to December. In addition, at least 27.6% yield increase in NSIC Pn 15 was obtained when planted between October to December while a yield increase up to 22% was achieved when NSIC Pn18 was used.
Keywords: Peanut, Planting Date, Cercospora Leaf Spot, Rust and Yield
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