TY - JOUR
T1 - Role of planting pattern and irrigation management on growth and yield of spring planted sunflower (Helianthus annuus)
AU - Dar, Javeed Shabbir
AU - Cheema, Mumtaz Akhtar
AU - Wahid, Muhammad Ashfaq
AU - Saleem, Muhammad Farrukh
AU - Farooq, Muhammad
AU - Basra, Shahzad Maqsood Ahmed
PY - 2009
Y1 - 2009
N2 - Water stress is a major limiting factor for sunflower production in the arid and semi arid regions in the world. A field experiment was conducted to assess the impact of different planting pattern and irrigation levels on growth and yield of spring planted sunflower. Four planting patterns (P1 = 60 cm spaced single row flat sowing, P2 = 60 cm spaced single row ridge sowing, P3 = 90 cm spaced double row strip flat sowing, P4 = 90 cm spaced double row bed sowing) and four irrigation levels (I0 = normal irrigations, I1 = irrigation skipped at pre-anthesis stage, I2 = irrigation skipped at anthesis stage, I3 = irrigation skipped at post-anthesis stage) were used. Maximum LAI and CGR were recorded at P2, whereas post anthesis stress treatment produced maximum crop growth. Maximum value of NAR was observed at P3 treatment and at anthesis stress. Highest achene yield (kg ha-1) was recorded at P2I0 (38% more yield than P3I1) treatment.
AB - Water stress is a major limiting factor for sunflower production in the arid and semi arid regions in the world. A field experiment was conducted to assess the impact of different planting pattern and irrigation levels on growth and yield of spring planted sunflower. Four planting patterns (P1 = 60 cm spaced single row flat sowing, P2 = 60 cm spaced single row ridge sowing, P3 = 90 cm spaced double row strip flat sowing, P4 = 90 cm spaced double row bed sowing) and four irrigation levels (I0 = normal irrigations, I1 = irrigation skipped at pre-anthesis stage, I2 = irrigation skipped at anthesis stage, I3 = irrigation skipped at post-anthesis stage) were used. Maximum LAI and CGR were recorded at P2, whereas post anthesis stress treatment produced maximum crop growth. Maximum value of NAR was observed at P3 treatment and at anthesis stress. Highest achene yield (kg ha-1) was recorded at P2I0 (38% more yield than P3I1) treatment.
KW - Growth
KW - Irrigation
KW - Planting pattern
KW - Sunflower
KW - Yield
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M3 - Article
AN - SCOPUS:75949098646
SN - 1560-8530
VL - 11
SP - 701
EP - 706
JO - International Journal of Agriculture and Biology
JF - International Journal of Agriculture and Biology
IS - 6
ER -