Impact of planting dates on yield and resistance of soybean varieties to soybean stem fly (Melanagromyza sojae) in Egypt.

ABSTRACT: Late planting dates can significantly reduce soybean yield due to fluctuations in soybean stem fly infestation levels in soybean crops. A two-year study was carried out at ARC, Giza, Egypt during 2020 and 2021 summer seasons to assess varietal performance to the infestation of soybean stem flies during three planting dates. Comparing to planting soybeans in mid-June, planting soybeans in mid-May resulted in increased days to maturity by 6.29% in the first season and 8.04% in the second season, increased seed yield per plot by 12.88% in the first season and 10.94% in the second season, and improved yield attributes such as 100-seed weight and pods per plant. Planting Giza 111 and Giza 35 in mid-May produced 2.78 and 2.75 kg/plot in the first season, and 2.40 and 2.43 kg/plot in the second s

SUBMITTER: Abdel-Wahab EI 

PROVIDER: S-EPMC12446469 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature