International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 9, Issue:11, November, 2020

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(11): 1534-1546

Ascertaining Weather Indices to Exploit the Yield Potential of Chickpea (Cicer arietinum L.) at Scarce Rainfall Zone of Andhra Pradesh
K. Prabhakar1*, V. Sumathi1, T. Giridhar Krishna2, P. Sudhakar3, S.Jaffar Basha4 and G. Karuna Sagar1
1Department of Agronomy, S. V. Agricultural College, Tirupati, ANGRAU, A.P., India
2ANGRAU, Lam, Guntur, A.P., India
3Crop physiology, RARS, Tirupathi, A.P., India
4Agronomy, AINP on Tobacco, RARS Nandyal, Kurnool District, A.P., India
*Corresponding author

Field experiments were conducted during rabi season of 2018-19 and 2019-20 at ANGRAU, Regional Agricultural Research Station, Nandyal, to study the weather related information on chickpea (Cicer arietinum L.) growth and yield under crop residue incorporation, varied time of sowing and irrigation stages. Results revealed that the mean values of weather indices like accumulated growing degree day, helio thermal units, photo thermal units at different phenophases and thermal use efficiency were influenced by times of sowing but not with crop residues incorporation and irrigation. Time of sowing also did not influence the days to reach different phenophases from emergence to harvest significantly. However, the first and second dates of sowing recorded more number of days to reach 50 per cent flowering, physiological maturity and harvest stage. Growing degree days, helio thermal units, photo thermal units, at flowering, physiological maturity and harvesting maturity of crop found to be highest in October second fortnight sown crop and goes on decreased with delay in sowing with fortnight interval, up to December first fort night. The drymatter and seed yield were higher with November first fortnight sown crop drymatter production (4719 kg ha-1), seed yield (1660 kg ha-1). The study concludes that maximum seed yield of chickpea can be achieved when chickpea was sown during November 1st FN, with incorporation of foxtail millet crop residue with two irrigations, one at pre flowering and another at pod development stage, attributed to record the higher thermal use efficiency (TUE) (dry matter 2.25 kg ha -1 0C day and seed 0.77 kg ha -1 0C day) under SRZ of Andhra Pradesh.

Keywords: Chickpea, Phenophases, GDD, PTU, HTU and TUE

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How to cite this article:

Prabhakar, K., V. Sumathi, T. Giridhar Krishna, P. Sudhakar, S. Jaffar Basha and Karuna Sagar, G. 2020. Ascertaining Weather Indices to Exploit the Yield Potential of Chickpea (Cicer arietinum L.) at Scarce Rainfall Zone of Andhra Pradesh.Int.J.Curr.Microbiol.App.Sci. 9(11): 1534-1546. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.