R. N. YADAV, S. N. SINHA, and N. C. SINGHAL. 2025. “Effect of Sowing Dates and Day Hours on Nectar Production and Frequency of Honeybee Visits in Parental Lines of Sunflower Hybrid APSH-11¹”. Seed Research 35 (1): 1-5. https://doi.org/10.56093/sr.v35i1.165585.