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Foliar application of plant extracts and salicylic acid affects the growth and yield of tomato

Research Paper | January 1, 2019

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Asad Ullah, Rahmatullah Khan, Imtiaz Khan, Zafar Ullah, Shoaib Khan, Ata Ullah, Barkat Ali, Nasar Ali Khan

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Int. J. Biosci.14( 1), 417-426, January 2019

DOI: http://dx.doi.org/10.12692/ijb/14.1.417-426


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The average yield per acre of tomato in Pakistan is very low as compared to the yield of neighboring countries like India and china. One of the basic reason behind this lag is improper use of chemical fertilizers.This experiment was designed to investigate the influence of different plant extracts (control, moringa 6%, neem 10% and garlic 4%) and salicylic acid (Control, 2, 4 and 6mM) as a foliar spray on the growth and yield of tomato (Cv. Rio Grande) at the University of Agriculture Peshawar-Pakistan during 2018. The design of the experiment was a Randomized Complete Block Design (RCBD) with split plot arrangement. In case of plant extracts thefoliar application of moringa 6% gave Maximum number of branches plant-1 (9.82), number of flower clusters plant-1 (9.58), number of fruit plant-1 (26.33), fruit length (6.67cm), fruit diameter (4.94 cm), yield plant-1(1.83 kg) and total yield (40.22 tons ha-1) with minimum days to fruiting (32.50). Whereas salicylic acid concentration also effected all the attributes as compared to other levels. Maximum number of branches plant-1(9.59), number of flower clusters plant-1 (9.17), number of fruit plant-1 (22.08), fruit length(6.80 cm), fruit diameter (4.88cm), yield plant-1(1.66kg), and total yield (37.05 tons ha-1) with minimum days to fruiting(30.42) was recorded with foliar application of salicylic acid. It is concluded that moringa leaf extract (6%) showed best response as compared to other treatments while salicylic acid also enhanced the growth and yield of tomato.


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Foliar application of plant extracts and salicylic acid affects the growth and yield of tomato

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