The present experiment was conducted during the growing season of 2011 2012 at the Cloth
Home, college of Agriculture, Basrah University, Garmat Ali Campus , with the objective of studying the
effect of cultivar and spraying with liquid coconut and the application of phosphate fertilization and their
interaction on vegetative growth and flowering of Tulip plant (Tulipa hybrida L.) . The experiment
included 18 factorial treatments , which included the interaction of three factors, two cultivars of Tulip
(Burgundy Lace and Judith Leyster ) , spraying with liquid coconut at three concentrations ( 0 , 10 , and
20 % ) and phosphate fertilizer at three levels , 0 , 50 and 100 kg hectare -1 as P2O5 . Plant of the cv.
Judith Leyster had a significantly higher plant height , length of flower stalk , as well as the percentage of
phosphorus in their leaf in comparison with plants of the cv. Burgundy Lace , whereas the cv. Burgundy
Lace had a significantly flower diameter in comparison with the cv. Judith Leyster. Treatment with liquid
coconut at a concentration of 10 and 20 % caused a significant increase in plant height , length of the
flower stalk . However, liquid coconut at concentration of 10 and 20 % caused a significant increase in
dry weight of the shoot system and flower diameter, leaf carbohydrate content , as well as the percentage
of P of leaves. This treatment also canted earlier flowering . Treatment with phosphate fertilizer either as
50 or 100 kg hectare-1 as P2O5 , gave significantly height , dry weight of the shoot system , length of the
flowering stalk , However , phosphate fertilizer at 100 kg hectare-1 as P2O5 had significantly higher plant
height , diameter flower and as well as the percentage of P in their leaves .This treatment also caused
earlier flowering . The secondary and tertiary interactions among the studied factors were significant in
most characteristics. |