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Growth and Yield Response of Turnip to Different Deficit Irrigation Levels and Sowing Dates under the Agro-Ecological Conditions of Khyber Pakhtuankhwa

Growth and Yield Response of Turnip to Different Deficit Irrigation Levels and Sowing Dates under the Agro-Ecological Conditions of Khyber Pakhtuankhwa

Amjad Ali1, Awais Salman1, Gul Daraz Khan1, Aftab Ahmad Khan2, Sher Shah Hassan2*, Muhammad Arif Goheer2, Mahmood Alam Khan3 and Sajjad Ahmed

1Faculty of Crop Production Sciences, The University of Agriculture-Peshawar, Khber Pakhtunkwa, Pakistan; 2Global Change Impact Studies Centre (GCISC), Ministry of Climate Change, Islamabad, Pakistan; 3Department of Agricultural Engineering, University of Engineering and Technology, Peshawar, KPK, Pakistan.

shershah538@gmail.com  

ABSTRACT

Due to climate change, irrigated agriculture will take place under water-scarce conditions, at present and more so in the future. Inadequate water supply for irrigation will be the usual rather than the exception, and irrigation management will shift from emphasizing production per unit area towards maximizing the production per unit of water consumed. This field experiment was carried out to assess growth and yield responses of turnip to different deficit irrigation levels and sowing dates at Research Farm situated at The University of Agriculture, Peshawar. The experiment was laid out in Randomized Complete Block Design with a split-plot arrangement, using three replications. Irrigation levels (i.e. I1 (100%), I2 (90%), I3 (80%) and I4 (70%)) were used as main plot factor and two sowing dates i.e sowing date one (SD1) and sowing date two (SD2) were used as sub-plot factor. The soil moisture contents were determined through the gravimetric method. Results showed that different deficit irrigation levels and sowing dates significantly affected different growth parameters, yield, weight and harvest index of turnip. Maximum number of leaves per plant (19.16), leaf length (19.97 cm), leaf width (10.46 cm), plant height (39.27 cm), turnip length (17.24 cm), turnip diameter (7.84 cm), turnip yield (22.42 tons ha-1), turnip weight (256.62 gm) and harvest index (52.34 %) were recorded for I1. Maximum turnip length (18.09 cm), turnip diameter (7.69 cm), turnip yield (21.11 tons ha-1), turnip weight (304.22 gm) and turnip moisture content (93.62 %) were recorded for SD1. The interactive effect of different deficit irrigation levels with sowing dates were found significant for turnip length while maximum turnip length (19.79 cm) was recorded at the irrigation level of I1 with sowing SD1 and minimum turnip length (7.29) was were recorded for irrigation level of I4 with SD2. Any stress of irrigation ranges from 10 to 30 % significantly affected the growth like leaf length, its width and plant height. 

 

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Pakistan Journal of Zoology

August

Vol. 52, Iss. 4, Pages 1225-1630

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