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Effect of seed rate and row spacing on grain yield of maize (Zea mays L.) cultivar ‘Sargodha 2002’

Research Paper | January 1, 2018

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Sikander Hayat, Ghulam Nabi, M. Riaz Gondal, Syed Raza Hussain, Saleem Il Yasin, Ahmad Hussain, Syed Rizwan Abbas

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Int. J. Biosci.12( 1), 322-328, January 2018

DOI: http://dx.doi.org/10.12692/ijb/12.1.322-328


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The effect of seed rate 20, 25, 30, 35 and 40kg/ha and row spacing 30, 45, and 60cm on agronomic characteristics of plants including plants/m2, plant height, stem diameter, number of cobs/m2, cob/plant, number of grains/cob, 1000 grain weight and grain yield was conducted using the cultivar “Sargodha 2002” for two years from 2015-16 to 2016-2017. Seed rates and row spacing had significant effect on number of cobs/m2, number of cobs /plant number of grain/cob and grain yield/ha. Row spacing had non-significant effect on plant height, stem diameter, plants/m2 and seed rate had non-significant effect on 1000grain weight. During the two years study row spacing (45cm) with seeding (35kg/ha) produced the highest grain yield. Significant effect of seed rate and row spacing on different parameters was recorded. Row spacing at 45cm produced the highest number of cobs/m2, number of cobs/plant and 1000 grain weight. In each row spacing increase in seed rate resulted in increase in plant height. Increase in the seed rate and row spacing resulted in decreased stem diameter. Maximum yield was recorded with 45cm spacing and 35kg/ha seed rate. Row spacing 30 and 60cm and seed rates 20, 25, 30 & 40kg/ha resulted in lower yields.


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