Performance of autumn planted sunflower (Helianthus annuus L.) hybrids under different planting patterns.

摘要

The response of sunflower (H. annuus) hybrids planted in the autumn to different planting patterns was studied in Faisalabad, Pakistan, during 2004 and 2005. The treatments consisted of 2 hybrids (FH-314 and FH-245) and 6 planting patterns (60x15, 60x22.5, 60x30, 75x15, 75x22.5 and 75x30 cm). Achene yield and yield components were evaluated. On average, FH-314 had a higher achene yield (2487.24 kg ha-1) than FH-245. The highest achene yield (2821.89 kg ha-1) was obtained when the crop was established using a planting pattern of 60x22.5 cm.