PJB-2017-743
Influence of Different Treatments of Nutrition, Putrescine and Media on Corm, Cormel Production and some Biochemical parameters of two cultivars Gladiolus under soilless condition
Ali jabbar
Abstract
This experiment was conducted to evaluate the effects of Nutrition (Hoagland solution and calcium nitrate solution), putrescine (50 and 100 ppm) and coco peat: perlite medium with three ratios (v/v) (1:1, 3:1 and 1:3) on some corm, cormel parameters and some biochemical parameters of two cultivars of gladiolus (Strong and White) under soilless condition in 2016. Data indicated that most criteria of corm and cormel parameters expressed as number of corms (2.18), number of cormels (45.00), corm diameter (6.02 cm), fresh weight of corm (60.59 g), and biochemical parameters expressed as leaf soluble sugar (6.23 mg/g F.W), leaf phenols content (37.01 mg/100g F.W) and flower ascorbic acid content(11.71 mg/100g F.W) significantly increased by the application of Hoagland solution + putrescine 100 ppm, while days to corm sprouting decreased (7.46 day). In terms of media the same traits ((1.59), (33.33), (5.93 cm), (60.14 g), (4.58 mg/g F.W), (28.91 mg/100g F.W) and (8.13 mg/100g F.W) respectively) significantly increased by the coco peat: perlite medium with ratio (1:3), while days to corm sprouting decreased (7.90 day). In terms of cultivars also white cultivar was superior ((1.56), (32.33), (5.94 cm), (59.16 g), (4.87 mg/g F.W), (28.56 mg/100g F.W) and (8.36 mg/100g F.W) respectively), to strong cultivar, while days to corm sprouting decreased in white (7.09 days). Interaction between cultivars, media and treatments in term of number of cormels was significant and the highest number of cormels (48.00) obtained by white cultivar, coco peat: perlite medium with ratio (1:3) and application of Hoagland solution + putrescine 100 ppm.
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