Influence of Boric acid and Iron Sulphate on vegetative, floral and bulbous growth of White Dutch Iris

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Research Paper 01/11/2019
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Influence of Boric acid and Iron Sulphate on vegetative, floral and bulbous growth of White Dutch Iris

Shahid Nadeem, Noor Alam Khan, Hussain Shah, Asma Hamid, Muhammad Kashif Bakhtiar
Int. J. Biosci.15( 5), 267-274, November 2019.
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Dutch Irises are popular bulbous plants which are used as cut flowers because of their attractive appearance and comparatively long-lasting vase life. Likewise, other bulbous plants they also need additional micronutrients to maintain their healthier life. However, this study aimed to investigate the effect of two micronutrients Boric Acid (H3BO3) and Iron Sulphate (FeSO4) on morphological and bulbous growth of White Dutch Iris. The experiment was designed according to Randomized Complete Block Design (RCBD) with six treatments and three replications. The study had shown that foliar application of 1% H3BO3 along with 1% FeSO4 had a significant impact on vegetative as well as floral growth in iris plants owing to maximum plant height (75.11a±0.19cm), similarly the increment in leaf length (81.66a±0.58cm), longest spike length (64.66a±1.15cm) and rachis length (40.66a ±0.67cm) was observed. The number of leaves (9.66a± 0.33) and number of florets/spike (3.67a±0.00) also enhanced but the number of days to bud color (157.45d±0.69) and floret open (158.89c±0.77) reduced expressively by the use of this combination, while the growth of controlled treatment showed poor results. Foliar spray of 2% H3BO3 was found highly effective to produce largest size of bulb (3.52a±0.34cm) as well as maximum number of bulbs (6.60a±0.20) while the weight of the bulb (31.66a±0.42g) was found maximum. In conclusion, the impression of iron sulphate was positive as enhanced the floral growth and improves the bulbous characteristics while the combination of boric acid and Iron sulphate had positive affect on the overall growth of White Dutch Iris.


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