Considering Leaf Extract of Miracle Tree (Moringa Oleifera L.) and Potassium Nutrition for Contending Cotton Leaf Curl Virus (CLCuV) Disease of Cotton (Gossypium Hirsutum L.)

Abstract

Cotton leaf curl virus disease (CLCuV) is a devastating biotic factor that imposed crop productivity a huge loss. To battle this issue this study was assessed in 2019 for the evaluation of the response of leaf extract of miracle tree (Moringa oleifera L.) and potassium (K) nutrition to mitigate the plague of CLCuV disease in cotton variety CRIS-129. Treatments have consisted of the various K dosses Viz., 0, 100, and 150 kg K2SO4 ha-1, and 3% leaf extract of moringa was sprayed at 30, 60, and 90 days after emergence. Results regarding yield components i-e boll weight (g) and seed index (g) were increased by increasing K application and foliar spray of moringa leaf extract but statistically non-significant (p<0.05). However, seed cotton yield and K contents in cotton leaves were significantly increased with all the treatments. The maximum seed cotton yield (2620 kg ha-1) was achieved with 150 kg K2O ha-1 application and it was increased by about 52% over the control treatment. In the case of incidence % of CLCuV disease, both K nutrition as well as foliar spray played a significant role and CLCuV intensity reduced with increasing rate of K doses and foliar sprays.

Effect of Some Antioxidants on Growth, Certain Physiological Aspects, and Productivity of Cotton Grown Under Three Different Irrigation Intervals

“…MLE being a rich source of growthpromoting hormones and nutrients showed its potential to a much greater range under traditional row spacing. Panhwar et al (2022) found that the use of the leaf extract of a miracle plant (Moringa oleifera L.) as a foliar spray on cotton, had significant effects on its yield and associated parameters. The highest boll weight and seed cotton yield were registered when foliar spray was done.…”

Crescimento, severidade de oídio e produtividade do feijão-vagem em resposta a diferentes fontes de potássio

“…O K é essencial na ativação de enzimas que atuam nos processos de fotossíntese e respiração, bem como regulador osmótico necessário a manutenção do status hídrico da planta e regulação da abertura e fechamento estomático (RAWAT et al 2016, MOSTOFA et al 2022. Além disso, plantas adequadamente nutridas com K tendem a ser menos suscetíveis a doenças (DAVIS et al 2018, PANHWAR et al 2022. Por exemplo, em plantas de videira a severidade de oídio foi inversamente proporcional ao teor de K no pecíolo das folhas (PUSHPAVATHI et al 2020).…”