Foliar Boron Spray for Improved Yield Oi
Sains Malaysiana 45(10)(2016): 1497–1507
Foliar Boron Spray for Improved Yield, Oil Quality and Water
Use Eficiency in Water Stressed Sunlower
(Semburan Boron Daun untuk Hasil yang Lebih Baik, Kualiti Minyak dan Kecekapan
Penggunaan Air dalam Bunga Matahari Bertekanan Air)
MUHAMMAD ASIF SHEHZAD*, MUHAMMAD MAQSOOD, TASAWER ABBAS & NAVEED AHMAD
ABSTRACT
Boron (B) is a mineral considered essential for improving sunlower (Helianthus annuus L.) resistance to drought. B
supplements (0, 15-, 30- and 45 mg L-1) under well-watered and variable water deicit levels (64 and 53 mm irrigation
depths) were evaluated for their effects on growth, oil quality and water use eficiency (WUE) in a ield study for two
consecutive years (i.e. 2011 and 2012). The duration of 50% inlorescence emergence, 50% lowering and 50% maturity
stages were reduced with increasing moisture stress. All B application rates improved sunlower growth compared to no
B control treatment. The moisture deicit treatments of 64 and 53 mm irrigation depths signiicantly (p
Foliar Boron Spray for Improved Yield, Oil Quality and Water
Use Eficiency in Water Stressed Sunlower
(Semburan Boron Daun untuk Hasil yang Lebih Baik, Kualiti Minyak dan Kecekapan
Penggunaan Air dalam Bunga Matahari Bertekanan Air)
MUHAMMAD ASIF SHEHZAD*, MUHAMMAD MAQSOOD, TASAWER ABBAS & NAVEED AHMAD
ABSTRACT
Boron (B) is a mineral considered essential for improving sunlower (Helianthus annuus L.) resistance to drought. B
supplements (0, 15-, 30- and 45 mg L-1) under well-watered and variable water deicit levels (64 and 53 mm irrigation
depths) were evaluated for their effects on growth, oil quality and water use eficiency (WUE) in a ield study for two
consecutive years (i.e. 2011 and 2012). The duration of 50% inlorescence emergence, 50% lowering and 50% maturity
stages were reduced with increasing moisture stress. All B application rates improved sunlower growth compared to no
B control treatment. The moisture deicit treatments of 64 and 53 mm irrigation depths signiicantly (p