International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (248) Last page : (252)
Article doi: : http://dx.doi.org/10.18782/2320-7051.2915
Correlation Studies on Effect of Temperature Regimes on Phenology, Growing Degree Days, Heat Use Efficiency and Seed Yield in Chickpea (Cicer arietinum L.) Genotypes
Kiran, B. O.* and V. P. Chimmad
Department of Crop Physiology University of Agricultural sciences, Dharwad. 58005
*Corresponding Author E-mail: kiran4714@gmail.com
Received: 26.04.2017 | Revised: 30.05.2017 | Accepted: 5.06.2017
ABSTRACT
The present study was carried out with forty four chickpea genotypes sown under three dates of sowing (41st, 45th and 49th SMW). Flower initiation, days to 50 per cent flowering, pod initiation, days to physiological maturity, GDD at flower initiation, GDD at 50 per cent flowering, GDD at pod initiation, and GDD at physiological maturity showed a strong positive association among each other. However, the degree of association decreased as the dates of sowing was delayed from 41st SMW to 49th SMW. Further, heat use efficiency (HUE) was strongly associated with phenological parameters in all the dates of sowing. While, it was highly positively associated with seed yield under D1 and D2dates of sowing. The results also indicated that, higher temperatures were associated with decrease in duration of phenological parameters with delayed dates of sowing. Higher seed yields were recorded under earlier sowing dates (D1) than late sown condition (D2 and D3). This indicates that, the association was significantly positive under D1 (0.442**) and D2 (0.589**) with HUE. However, it was non-significant under delayed sowing (D3).
Key words: Chickpea, Yield, Pollen, Anthers
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Kiran, B.O. and Chimmad, V.P., Correlation Studies on Effect of Temperature Regimes on Phenology, Growing Degree Days, Heat Use Efficiency and Seed Yield in Chickpea (Cicer arietinum L.) genotypes. Int. J. Pure App. Biosci.6(2): 248-252 (2018). doi: http://dx.doi.org/10.18782/2320-7051.2915
