Effect of Sowing Time, Nitrogen, and Zinc Scheduling on Chlorophyll content and Number of Spikelets per Spike in Wheat (Triticum aestivum L.)

Author: Bandana Rani Barik, Yashwant Singh, Saroj Kumar Prasad and Monalisa Sahoo

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Abstract

An experiment was conducted in factorial split design in the Agricultural Research farm of BHU, Varanasi for two years 2018-19 and 2019-20 in the rabi seasons to study the effect of sowing time, nitrogen, and zinc management. To study the effect of sowing time crop was sown in the second fortnight of November and the first fortnight of December and a similar dose of 150 kg of nitrogen was applied to the crop at various growth stages like basal, CRI stage, and flag leaf visible stage in both treatments but one of the nitrogen treatments included the application of urea 2% at anthesis stage where 9.2 kg urea was saved from 150 kg nitrogen for spraying. Zinc management included four levels of treatments: Z1: 0 kg ha-1 Zn, Z2: 5.0 kg ha-1 Zn as basal, Z3:1.7 kg ha-1 Zinc as basal + 0.50% ZnSO4 spray at Z31 (stem elongation) + 0.50% at Z75 (milking), Z4: 1.7 kg ha-1 Zinc as basal + 0.50% ZnSO4 spray at Z60 (Anthesis) + 0.50% ZnSO4 spray at Z85 (Dough stage). Chlorophyll content was found to be maximum in Z2 up to 60 days after sowing and after foliar application with 0.5% zinc sulfate, chlorophyll content was found to increase in Z3 as compared to Z4. The number of spikelet formations was also affected by Z3. Two of the parameters showed a significant result in the second fortnight of November and the effect of nitrogen was found to be non-significant

Keywords

Chlorophyll content, number of spikelet, sowing time, foliar application, zinc.

Conclusion

From the above study, it was found that chlorophyll content and the number of spikelets per spike were highly influenced by the time of sowing (second fortnight of November). The effect of nitrogen was found to be non-significant for both parameters. Zinc application at the rate of 1.7 kg ha-1 Zinc as basal + 0.50% ZnSO4 spray at Z31(stem elongation) + 0.50% at Z75 (milking) gave maximum chlorophyll at 90 days after sowing and the maximum number of spikelets per spike but Z2 (5.0 kg ha-1) observed maximum chlorophyll content up to 60 days after sowing.

References

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How to cite this article

Bandana Rani Barik, Yashwant Singh, Saroj Kumar Prasad and Monalisa Sahoo (2024). Effect of Sowing Time, Nitrogen, and Zinc Scheduling on Chlorophyll content and Number of Spikelets per Spike in Wheat (Triticum aestivum L.). Biological Forum – An International Journal, 16(4): 46-49.