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Phenology and yield of coarse and fine rice under varying levels of zinc and farmyard manure

Mohammad Munir, Ayub Khan, Shah Masaud Khan, Sher Aslam Khan, Muhammad Saeed and Abdul Bari

In order to investigate the effect of Zn and FYM levels on phenology and yield of coarse and fine rice cultivars, field experiments were conducted at Agriculture Research Institute Swat, Khyber Pakhtunkhwa, Pakistan during summer 2013 and 2014. The experiments were laid out in RCB design with split plot arrangements having three replications. The experiment consisted of four levels of Zn (0, 6, 12 and 18 kg ha-1) and two levels of FYM (0 and 15 t ha-1) applied to two rice cultivars,   coarse rice cultivar (Fakhr-e-Malakand) and fine rice (Basmati-385). Application of FYM at the rate 15 t ha-1 produced taller plants, hastened heading, physiological maturity and shortened grain filling duration by 4, 2 and 6 days, respectively over control whereas   biological and grain yield increased by 51% and 48%, over control plots. Likewise, Zn level of 18 kg ha-1 increased plant height by 4.6%, hastened heading by 3 days and extended grain filling duration by 4 days while biological yield and grain yield increased by 11.51 % and 22 %, respectively over control. Fine rice cultivar Basmati-385 had taller plants, delayed heading, physiological maturity and 19.31 % and 17.91% lower biological and grain yields, as compared to coarse rice cultivar Fakhr-e-Malakand. It is concluded that the application Zn and FYM either alone or in combination can substantially improve rice productivity.

To Cite this article: Munir, M., A. Khan, S.M. Khan, S.A. Khan, M. Saeed and A. Bari. 2020. Phenology and yield of coarse and fine rice under varying levels of zinc and farmyard manure. Pak. J. Bot., 52(2): DOI:

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