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Research Paper | November 1, 2018

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Effect of ridges height on the growth, yield and root rot control of different chili cultivars in mansehra

Bakht Zeb, Shujaat Ali, Neelam Ara, Tariq Ahmad Jan, Syed Asim Shah Bacha, Iftikhar Ahmad, Syed Haider Ali Shah, Rahmatullah Khan, Imran Habib Khan, Asad Ullah, Nasar Ali Khan

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Int. J. Biosci.13(5), 464-472, November 2018

DOI: http://dx.doi.org/10.12692/ijb/13.5.464-472


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Root rot disease caused by Phytophthora nicotianae has serious threat to chili (Capsicum annuum L.). Annually, this disease causes billions of dollars loss due to damage of crops throughout the world. This experiment was evaluated on the “effect of ridges height on the growth and root rot control of chili cultivars in Mansehra” during 2016.  The Randomized Complete Block Design (RCBD) was used with two factors factorial arrangement having three replications. Four chili cultivars i.e. Sundari, Ghotki, Skyline-2 and P-6 were tested for their tolerance against root rot disease. Different ridges height i.e. flatbed, 20, 30 and 40 cm were used. Different parameters including plant height, numbers of branches plant-1, number of fruits plant-1, fruit length, number of seeds fruit-1, root length, root rot incidence, plant mortality, 1000 seed weight, fruit weight plant-1, and yield were studied in the experiment. The result showed that increase in ridges height decreased in root rot disease. Throughout the experiment all other cultivars were found susceptible to root rot disease except cultivar P-6. Maximum plant height (92.86 cm), numbers of branches (14.87), root length (29.53 cm), number of fruit plant-1 (204.33), minimum disease incidence (12.33%), and plant  mortality (10.00%) , fruit weight plant-1 (785.87 g),  and yield per hectare (23.57 ton ha-1)  were recorded in P-6 on ridges height 40 cm. The cultivar P-6 was recommended for plant growth parameter enhancing yield and reducing percent root rot disease incidence with 40 cm ridge height in Mansehra.


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Effect of ridges height on the growth, yield and root rot control of different chili cultivars in mansehra

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