Effect of foliar application of Boron and magnetized water on flowering and tuberous root characters of Dahlia variabilis and Ranunculus asiaticus

Abstract

This study was carried out from March/2005 to March/2007 to investigate the effect of Boron concentrations and magnetized water in flowering and tuberous roots production of Dahlia and Ranunculus. Plants were irrigated by either Tap water or magnetized water. Boron Concentrations tested were (0, 29.5, 59.0, 88.5) mg/ L. البحث مستل من رسالة ماجستیر للباحثة الثانیة Boron concentrations were improved most flowering and tuberous root characteristics. Dahlia plants, Boron levels fastened flowering date and enhanced no. and diameter of flowers; length and diameter of flowering stem; vase life; fresh weight of flowers and length and diameter of tuberous roots (188 days; 5.29 flower/plants; 6.57 cm; 24.04 cm; 2.76 mm; 9 days; 9.53 gm; 5.96 and 3.53 cm) respectively. Ranunculus plants, Boron levels increased no. and diameter of flowers; length and diameter of flowering stem; fresh and dry weight of flowers and length and diameter of tuberous roots (3.08 flowers/ plants; 6.18 cm; 29.38 cm; 3.01 mm; 2.43 gm; 0.39 gm; 2.32 cm and 3.24 cm) respectively. Flowering characters were improved by using magnetic water as well. Watering Dahlia plants by magnetized water increased no. and diameter of flowers; length and diameter of flowering stems and no.; length and diameter of tuberous roots. (5 flowers/plants; 6.93 cm; 23.38 cm; 2.76 mm; 11.54 root/plant; 5.66 cm and 3.25 cm) respectively. In addition, flowering characters of Ranunculs plants were enhanced. Number and diameter of flowers; length and diameter of flowering stems; vase life and length and diameter of tuberous root were increased (3.15 flowers/plant; 4.97 cm; 28 cm; 3.11 mm 10 days; 2.84 cm and 2.28 cm).