Abstract :
The field trials were conducted during winter season of 2002-2003 to study the efficacy of micro-nutrients on growth and flower production of China aster [Callistephus chinensis (L.) NEES] cv. Princess in plot A-7 of the R.B.S. College Agricultural Farm, Bichpuri, Agra in Randomized Block Design with nine treatments i.e. T1- Control (Spray of zinc sulphate 0.0 %),T2- (Spray of zinc sulphate0.2%),T3- (Spray of zinc sulphate 0.4%),T4- (Spray of ferrous sulphate 0.0%),T5- (Spray of ferrous sulphate 0.2%),T6-(Spray of ferrous sulphate 0.4%),T7- (Spray of copper sulphate 0.0%),T8- (Spray of copper sulphate 0.2%),T9-(Spray of copper sulphate 0.4%). It was observed that overall that maximum plant height was find out in treatment T5 (63.00cm), maximum diameter of main stem (cm) was recorded in treatment T5 (3.09), maximum number of leaves was found in treatment T5 (125.40), maximum plant spread along and across the row (cm) was found in treatment T5 (38.34), maximum number of laterals was found in treatment T5 (31.44), maximum length of longest leaf (cm) was found in treatment T5(10.69cm), maximum width of the longest leaf (cm) was found in treatment T5 (7.34cm), maximum green weight of plant canopy at final was found in treatment T5 (401.25), maximum dry weight of plant canopy at final was found in treatment T5(72.39), maximum date of visibility of flower bud was found in treatment T5 (131.33), maximum date of colour break was found in treatment T5(139.29), maximum date of full blooming was found in treatment T5 (160.07), maximum date of harvesting of floral heads was found in treatment T5(162.18), maximum fresh weight of floral head (g) was found in treatment T5(4.96), maximum length of floral head (cm)was found in treatment T5 (3.20 cm), maximum width of floral head (cm) was found in treatment T5 (6.21cm), maximum length of floral stalk (cm) was found in treatment T5 (21.67cm) and maximum diameter of floral stalk (cm) was found in treatment T5 (0.27cm).
Keyword :
Copper sulphate, growth, China aster, Zinc sulphate, Ferrous sulphate