PJB-2020-131
EFFECT OF ZINC AND MANGANESE ON THE PRODUCTION AND QUALITY OF CUT ROSE CULTIVARS
Ammara Saeed
Abstract
Study was conducted to investigate the effect of micronutrients i.e. Zn and Mn different levels on production and quality of cut rose cultivars. The field experiment was carried out at Ornamental Horticulture Nursery, Department of Horticulture, The University of Agriculture Peshawar during 2014 and 2015. The experiment was laid out in a Randomized Complete Block Design (RCBD) with split plot arrangement and data of single treatment was collected with 5 replicates. The Zn levels included 2.5, 5.0, 7.5 kg ha-1, and Mn levels were 1,2 and 3 kg ha-1 along with control cut rose cultivars. Five rose cultivars including Cardinal, Red Mashal, Whisky Mac, Gold Medal and Indian Chief were used. The experimental results revealed that micronutrients treatments significantly influenced vegetative and flowering parameters of cut rose cultivars. Maximum number of branches plant-1 (8.4), flower stalk length (47.8 cm), flower diameter (7.4 cm), number of flower plant-1(10.8), flower persistence (11 days), survival percentage (97.4 %) and early flowering (29.6 days) were recorded when plants were supplied 5 kg ha-1 of Zn and 2 kg ha-1 of Mn. The least days to sprouting (12.2 days) and the highest number of leaves branch-1(20.6) were accounted in plants with supplement of 5 kg ha-1 of Zn and 1 kg ha-1 of Mn. The statistic analysis showed that all the study attributes were significantly better in 2015 than 2014. Gold Medal was recorded with least days to sprouting (13.3 days), maximum number of branch plant-1 (6.6) and survival percentage (87.3 %). The Cardinal cultivar was observed with the highest flower stalk length (42.8 cm), diameter of flower (7.2 cm) and flower persistence (8 days). Whisky Max cultivar for all the attributes had been observed with only highest number of leaves branches-1 (15.8). Hence, it was concluded that Zn at 5 kg ha-1 in combination with Mn at 2 kg ha-1 enhanced the production and quality of cut rose cultivars.
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