P. V. Krishnayya

Impact of Elevated CO2 on Growth and Development of Multiple Generations of Beet armyworm, Spodoptera exigua (Noctuidae: Lepidoptera) on Chickpea

T. Divya Bharathi, P. V. Krishnayya & M. Srinivasa Rao · International Journal of Environment and Climate Change · 2026

Rising atmospheric carbon dioxide (CO₂) can alter host-plant chemistry and thereby affect herbivorous insects across generations. This study evaluated the effects of ambient CO₂ (aCO₂; 380 ± 25 ppm) and elevated CO₂ (eCO₂; 550 ± 25 ppm) on chickpea foliar biochemistry and the gro...

Open access Research Article 10.9734/ijecc/2026/v16i85602

Impact of Elevated CO2 and Temperature on Growth and Development of Helicoverpa armigera Hubner

D. V. Sravan Kumar, P. V. Krishnayya, M. Srinivasa Rao, P. Anil Kumar & V. Srinivasa Rao · Journal of Experimental Agriculture International · 2021

Climate change is an imminent and inevitable circumstance largely driven by increase in CO2 and temperature. CO2 directly affects plants through positive effects on net photosynthetic rate. Higher temperature during the crop growth phase can diminish the yield, with a longer grow...

Open access Research Article 10.9734/jeai/2021/v43i330655