Effect of planting gcometry and water stress on the seed yield and quality of spring planted sunflower hybrid "SF 100" was studied under field conditions. Crop grown without water stress (five irrigations) resulted in the maximum seed yield of 32.7 q ha! while water stress at seed setting gave the lowest seed yield of 22.8 q hal. Sunflower grown with water stress at cup formation (foral primordia) and flowering gave the seed yield of 27.2 and 25.8 q ha', respectively. Crop grown in 90 cm spaced double row strips exhibited significantly higher seed yield (29.1 q ha-I ) than that grown in 60 ern spaced single rows (25.2 q ha-I ). Interactive effect of water stress and planting geometry was significant only on seed yield. The highest yield of 36.6 q ha-t was obtained in crop receiving 5-irrigations and planted in 90 em apart doublerow strips. Sunflower grown without water stress exhibited the maximum seed oil content (41.3%) while that subjected to water stress at seed setting gave the lowest seed oil content (35%).
Mahboob Akhtar, M. Zubair, M. Saeed, Riaz Ahmad. (1993) EFFECT OF PLANTING GEOMETRY AND WATER STRESS ON SEED YIELD AND QUALITY OF SPRING PLANTED SUNFLOWER (HEL/ANTHUS ANNUUS L.), , Volume 30, Issue 1.
