tailieunhanh - Effect of spacing and periodical staggered nipping on botrytis disease incidence and quality of castor (Ricinus communis L.)

The field experiment was conducted during the kharif seasons of 2013 and 2015 at ZARS, University of Agricultural Sciences, Gandhi Krishi Vigyan Kendra, Bengaluru on red sandy clay loam soil to know the influence of periodical staggered nipping and spacing on Botrytis disease infestation and quality of castor. Nipping and different spacing’s in castor significantly influenced the disease incidence and castor oil yield. Periodical staggered nipping leaving one spike in each branch recorded lower Botrytis disease scoring () and chaffiness ( %) as compared to non-nipping treatments. This treatment also recorded significantly higher oil content ( %) and oil yield ( q ha-1 ). Among the different spacing levels lower Botrytis disease scoring (), chaffiness ( %) and significantly higher oil content ( %) were noticed with the spacing of 120 x 45 cm. Whereas, significantly higher oil yield was recorded in the spacing of 90 x 45 cm ( q ha-1 ). Interaction effects between periodical staggered nipping and spacing were not significant. | Effect of spacing and periodical staggered nipping on botrytis disease incidence and quality of castor Ricinus communis L.

• Nông nghiệp
• Periodical staggered nipping
• Botrytis disease incidence
• Quality of castor
• Castor (Ricinus communis L )
• Significantly higher oil content