Correlation and Regression Studies of Growth, Yield Attributes, Yield and Nutrient Uptake of Foxtail Millet under Different Varieties and Landraces

N. Gobikashri *

Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641 114, India.

K. Udhaya Kumar

Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641 114, India.

G. Jennifer Flora

Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641 114, India.

A. Kousalya

Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641 114, India.

V. S. Kavinesh

Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore-641 114, India.

*Author to whom correspondence should be addressed.


Abstract

Aims: To evaluate the “Correlation and Regression Studies of Growth, Yield Attributes and Yield of foxtail millet (Setaria italica L.) Under Different Varieties and Landraces”.

Place and Duration of Study: The experiment was carried out in the Rabi season of 2022-23 at Experimental farm in Karunya Institute of Technology and Sciences, Coimbatore. Experimental field was silty clay loam in texture with medium in available N (273.0 kg/ha), high in available P2O5 (21.5 kg/ha) and high in available K2O (425.0 kg/ha) and lower level of organic carbon (0.29%).

Study Design: Randomized Block Design (RBD).

Methodology: The treatments consisted of 8 foxtail millet varieties and landraces viz., T1 - ATL-1 (Control), T2 - SiA-3222 (Garuda), T3 - SiA-3088 (Suryanandhi), T4 - SiA-3085, T5 - SiA-3156, T6 - SiA-3233 (Reynaudu), T7 - Mookanthathinai and T8 - Koranthinai.

Results: Grain yield was highly significant positive correlation with N uptake (r = 0.996**), DMP at harvest stage (r = 0.984**), K uptake (r = 0.981**), P uptake (r = 0.966**) and straw yield (r = 0.954**). From the regression, N uptake (R2 = 0.993**), DMP (R2 = 0.968**) at harvest is the important positive component of grain yield in foxtail millet followed by K uptake (R2 = 0.962**), P uptake (R2 = 0.934**) and straw yield (R2 = 0.911**).

Conclusion: From the result of correlation and regression, it was concluded that in terms of grain yield, the foxtail millet varieties and landraces are influenced by the DMP at harvest stage, N uptake, K uptake, P uptake and Straw yield.

Keywords: Correlation, foxtail millet, regression, varieties and landraces


How to Cite

Gobikashri, N., K. Udhaya Kumar, G. Jennifer Flora, A. Kousalya, and V. S. Kavinesh. 2023. “Correlation and Regression Studies of Growth, Yield Attributes, Yield and Nutrient Uptake of Foxtail Millet under Different Varieties and Landraces”. International Journal of Environment and Climate Change 13 (8):1139-45. https://doi.org/10.9734/ijecc/2023/v13i82052.