The effect of four under tree micro-jet irrigation (180-3000) systems on fruit yield and quality of Nagpur mandarin in C
Journal Title: Agricultural Advances - Year 2012, Vol 1, Issue 7
Abstract
A field experiment was conducted for evaluation of the different degree under tree automatic micro-jet irrigation systems on yield, quality and productivity of Nagpur mandarin on 12-15 years old bearing Nagpur mandarin (on Rough lemon) at National Research Centre for Citrus, Nagpur during 2008-2011. Four treatments viz. Irrigation with 1800 Fan type micro-jet (2/plant), (M1); Irrigation with 1800 Ray type micro-jet (2/plant) (M2); Irrigation with 2700 Ray type micro-jet (2/plant) (M3) and Irrigation with 3000 Ray type micro-jet (2/plant) (M4) were evaluated with six replications in Randomized Block Design. The quantity of water applied using automatic controller in micro-jet irrigation systems varied from 70.5 to 142.1 litres/day/plant and 82.3 to 134.4 litres/day/plant during 2009-10 and 2010-11 respectively. The soil moisture distribution was observed higher and uniform under irrigation with 1800 Fan type micro-jet (2/plant) followed by irrigation with 1800 Ray type micro-jet (2/plant). The highest average increase in canopy volume was recorded in micro-jet 1800 Fanjet (93.68 m3) and micro-jet 1800 Rayjet (90.65 m3). The highest fruit yield i.e. 29.4 tonnes/ha was recorded with 1800 Fan type micro-jet (2/plant) followed by irrigation with 3000 micro-jet (2/plant)(26.2 tonnes/ha), where as the lowest yield was observed in irrigation with 1800 Rayjet type micro-jet (2/plant) irrigation system (21.9 tonnes/ha). The fruit quality analysis revealed that total soluble solids was highest (9.47 oBrix) with 3000 Ray type micro-jet followed by irrigation with 1800 Fan type micro-jet treatment (9.0 oBrix). The highest juice content (39.4 %) was found with 1800 Ray type micro-jet irrigation as compared to irrigation with 1800 Fan type micro-jet. The TSS to acidity ratio was highest with 3000 Rayjet type micro-jet irrigation system.
Authors and Affiliations
P. S. Shirgure*| Water Management LaboratoryNational Research Centre for Citrus, Nagpur - 440 010 (Maharashtra), India., A. K. Srivastava| Soil Science LaboratoryNational Research Centre for Citrus, Nagpur - 440 010 (Maharashtra), India.
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