Effect of Irrigation Schedules on Growth, Yield Characters and Yield of Groundnut varieties

Author: S.K. Chandini, N. Venkata Lakshmi, M. Sree Rekha and M. Ravi Babu

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Abstract

A field experiment was carried out at the Agricultural College farm, Bapatla during the rabi season of 2021-22 to investigate the effect of irrigation schedules on groundnut varieties with IW/CPE ratios that are appropriate for a given season under moisture stress conditions. The experiment was designed in a split-plot with three replications which includes three irrigation schedules IW/CPE ratios of 1.0 (M1), 0.8 (M2) and 0.6 (M3) as main plots, four groundnut varieties i.e., TAG-24 (V1), Dheeraj (V2), Kadiri Leapskhi (V3) and Kadiri Chitravati (V4) as sub-plots. The results showed that an IW/CPE ratio of 1.0 produced significantly higher yield characters such as number of pods plant-1 (24.7), number of filled pods plant-1 (22.6), number of branches plant-1 (10.5) and test weight (42.3 g). Dheeraj had significantly taller plants (43.3 cm), whereas Kadiri Lepakshi had more branches plant-1 (12.7) and drymatter production (8632 kg ha-1) than Kadiri Chitravati, Dheeraj and TAG-24. IW/CPE ratio of 1.0 along with Kadiri Lepakshi out performed Kadiri Chitravati, Dheeraj, and TAG-24 in terms of pod and haulm yield.

Keywords

Irrigation schedules, Groundnut varieties, IW/CPE-

Conclusion

According to the findings of the current study, groundnut yield parameters (number of pods plant-1, number of filled pods plant-1, and test weight) and plant growth were considerably higher at IW/CPE ratio of 1.0 (M1) than with an IW/CPE ratio of 0.8, except drymatter. Among the varieties, Kadiri Lepakshihad greatly increased the number of branches plant-1, dry matter compared to other varieties. Scheduling of irrigations at pre sowing, pegging, pod formation stage and pod development stage (4 irrigations) using IW/CPE ratio of 1.0 resulted in higher pod yield (3175 kg ha-1) which was comparable to that of irrigation scheduled at IW/CPE ratio of 0.8 (2916 kg ha-1) i.e., three irrigations (pre sowing, pegging and pod formation stage) on sandy loam soils under moisture stress conditions with less difference of B:C ratio to that of four (4) irrigations.

References

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How to cite this article

S.K. Chandini, N. Venkata Lakshmi, M. Sree Rekha and M. Ravi Babu (2022). Effect of Irrigation Schedules on Growth, Yield Characters and Yield of Groundnut varieties. Biological Forum – An International Journal, 14(4): 1148-1152.