Growth and Yield of Blackgram (Vigna mungo L.) as influenced by Sowing Windows and varieties in North Coastal Zone of Andhra Pradesh

Author: B. Tejaswini, D. Sekhar, P. Amarajyothi and P. Madhu Vani

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Abstract

A field experiment was carried out at Agricultural Research Station, Ragolu, Srikakulam district, Andhra Pradesh during the period from November 2022 to March 2023 to assess the performance of blackgram (Vigna mungo L.) varieties under different sowing windows in rice-based cropping system in North Coastal Zone of Andhra Pradesh. Blackgram production in the North Coastal Zone of Andhra Pradesh is low due to delayed sowings and the late-sown crop faces terminal stress which ultimately resulting in poor yields. So, the following experiment has been taken up to standardize the optimum date of sowing and to assess high yielding variety for this zone. The experiment was laid out in split plot design with three replications. The results showed that, November second fortnight recorded significantly taller plants (27.7 cm, 46.6 cm and 47.2 cm) and dry matter accumulation (353 kg ha-1, 1985 kg ha-1 and 2867 kg ha-1) at 30, 60 DAS and at harvest respectively. Yield attributes like number of pods plant-1 (23.7), pod length (5.4 cm), test weight (42.7 g) and seed yield (1270 kg ha-1) were significantly influenced by the sowing windows and found to be significantly highest in November second fortnight. With regard to varieties, LBG 752 recorded significantly tallest plants (26.2 cm, 46.6 cm and 47.2 cm) and maximum dry matter accumulation (295 kg ha-1, 1730 kg ha-1 and 2482 kg ha-1) at 30, 60 DAS and at harvest, respectively, which was statistically on par with LBG 787. The yield attributing characters like number of pods plant-1 (22.0), pod length (5.2 cm), test weight (42.7g) and seed yield (1244 kg ha-1) were found significantly highest in the variety TBG104. Overall, the results showed that sowing of TBG104 variety in November second fortnight seems to be the appropriate for getting higher seed yield in rice based cropping system of North Coastal Zone of Andhra Pradesh.

Keywords

Blackgram, Growth, Sowing windows, Varieties, Yield attributes and Yield

Conclusion

From the above study, it can be concluded that, November second fortnight is the optimum sowing window for blackgram under rice based cropping system for North Coastal Zone of Andhra Pradesh. The variety TBG 104 came out to be high yielder followed by GBG 1, LBG 884, LBG 787 and LBG 752 in rice based cropping system.

References

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How to cite this article

B. Tejaswini, D. Sekhar, P. Amarajyothi and P. Madhu Vani (2023). Growth and Yield of Blackgram (Vigna mungo L.) as influenced by Sowing Windows and varieties in North Coastal Zone of Andhra Pradesh. Biological Forum – An International Journal, 15(9): 505-510.