YIELD ATTRIBUTES AND YIELD OF RABI SORGHUM (Sorghum bicolor L. Moench) AS INFLUENCED BY DIFFERENT DRIP IRRIGATION LEVELS

C. SATISH¹*, K. AVILKUMAR², V. PRAVEEN RAO³, M. UMA DEVI⁴, K. SREENIVAS KUMAR^5
1College of Agriculture Engineering, Professor Jayashankar Telangana State Agricultural University, Sangareddy, 502001
²College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana 500030
³College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana 500030
⁴Water Technology Centre, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana 500030
⁵College of Agriculture Engineering, Professor Jayashankar Telangana State Agricultural University, Sangareddy, 502001
* Corresponding Author : satishchidrawar@gmail.com

Received : 02-04-2016     Accepted : 30-04-2016     Published : 28-08-2016
Volume : 8     Issue : 30       Pages : 1639 - 1641
Int J Agr Sci 8.30 (2016):1639-1641

Keywords : Drip Irrigation, Surface furrow irrigation, Sorghum grain yield and yield attributes
Academic Editor : N. Manikandan
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : None declared

The field experiment was conducted during rabi 2014-2015 with CSH-16 sorghum hybrid at Water Technology Center, College farm, College of Agriculture, Rajendranagar, Professor Jayashankar Telangana State Agricultural University, Hyderabad to study the effect of different drip irrigation levels i.e. drip irrigation at estimated 0.6 ETc throughout the life (I1), 0.8 ETc throughout the life (I2), 1.0 ETc throughout the life (I3), 1.2 ETc throughout the life (I4), 0.6 ETc up to flowering 0.8 ETc later on (I5), 0.6 ETc up to flowering 1.0 ETc later on (I6), 0.6 ETc up to flowering 1.2 ETc later on (I7), 0.8 ETc up to flowering 1.0 ETc later on (I8), 0.8 ETc up to flowering 1.2 ETc later on (I9) and in addition to surface furrow irrigation at 0.8 IW/CPE ratio (I10) on yield attributes and yield of rabi sorghum. The results indicated that drip irrigation at estimated 1.2 ETc throughout the life recorded higher yield and yield attributes compared to the drip irrigation treatments and surface furrow irrigation at 0.8 IW/CPE ratio. Under deficit irrigation conditions, drip irrigation at 0.8 ETc up to flowering and 1.0 or 1.2 ETc later on can be recommended over the drip irrigation 1.0 to 1.2 ETc throughout the life with minimum reduction in yield.