EFFECT OF FOLIAR APPLICATION OF CALCIUM CHLORIDE AND SALICYLIC ACID ON GROWTH AND FLOWERING OF THREE Gladiolus X hortulanus L. CULTIVARS.

Abstract

This experiment was carried out in the Green net house at the College of Agriculture and Forestry for the period from April to September 2019, with the aim of assessing the response of three cultivars of Gladiolus X hortulanus L. for treatment with (SA) at a concentrations of zero and 250 mg.l-1 as well as treatment with (CaCl 2) concentrations are zero, 500 and 1000 mg.l-1 sprayed on the vegetative growth twice. The results indicated the following: The red cultivar recorded the largest height, the number of leaves, shortest the period from planting to the inflorescence bud initiation and longest vase life, While the white cultivar recorded the largest value of spike length. The plants sprayed with SA had a significant effect in recording the largest values of all studied traits except for the duration from planting to the inflorescence bud initiation, which decreased significantly. The treatment with CaCl 2 with both concentrations resulted in a significant increase in the number of leaves and the spike length, The treatment with CaCl 2 at 1000 mg.l-1 gave the largest values for the plant height and the vase life. showed that red and white cultivars produced flower that fall within a special grade when they were sprayed with SA or did not interact with spraying with CaCl 2 at 1000 mg.l-1 , while the violet cultivar ended their flowering 5 days when they were sprayed with SA interact with CaCl 2 at 1000 mg.l-l .

The Effect of Gibberellic Acid and Calcium Carbonate on some Indicators of the Quality of Cut Flowers of Chrysanthemum Plant (Dendranthema grandiflorum Ramat.)

“…According to the state of water balance in the cut flowers, sufficient nutrients are available for the flowers. The current study is in agreement with [47] on Chrysanthemum indicum and Tageta erecta, as well as the study of [2] on the Gladiolus plant, and support by [28] in their study on three varieties of Gladiolus hortulanus, and [14] on the perpetual carnation plant.…”

“…In the same way, the cultivars differ in their resistance to bacteria, which is the main reason for the blockage of the vessels in the stem and thus the vase life [3] , in addition to the above, the short vase life may be attributed to ethylene productivity and the difference in sensitivity to it among different cultivars [26] , in this direction, the amount of water lost by transpiration was included as one of the causes of water imbalance in the flower, which leads to a short vase life. This trend is supported by [27], The results of the current study agree with [28] in their study of three Gladiolus hortulanus cultivars, as the red and violet cultivars excelled in recording the longest vase life.…”

Response of Phaius tankervilleae Bl. to Various Nutrient Concentration Levels

“…were 37.13 and 5.80 µm 2 respectively, The maximum stomatal number and stomatal size were recorded in T 2 (RDF + Zn 750ppm). This could be due to zinc's involvement in stomatal opening, possibly as a component of the enzyme carbonic anhydrase and as a factor in membrane integrity and K + uptake [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40].…”

Impact of Foliar Fertilization on Growth, Flowering, and Corms Production of Five Gladiolus Varieties

“…Vase durability of Gladiolus is one of the most important considerations for consumers. Foliar fertilizer effects on vase durability have been reported on Rosa [ 28 ], Lilium [ 29 ], Anthurium andreanum [ 30 ] and Gladiolus [ 31 , 32 ]. In the present experiment, vase durability of the five gladioli varieties was improved compared to the control in almost all treatments.…”