Chemical-Free Cotton Defoliation by; Mechanical, Flame and Laser Girdling
AbstractA novel new way to achieve chemical-free defoliation of cotton is discussed. The research found that by severing the phloem tissue on the main stalk, via a girdling operation, the operation stimulated the cotton plant to alter its growth into an early senescence pathway that resulted in the plant shedding its leaves and opening up all its bolls, leaving the plant in the perfect state for machine harvesting. Even with follow-up rains, zero regrowth occurred in the treated plants, unlike the untreated control plots where significant regrowth did occur. This report compares the results of greenhouse and field trials where the girdling operation was performed by hand, flame, mechanical and via a CO2 laser to achieve phloem tissue severance. Design parameters for a prototype laser girdling system are also provided. Results suggest that for deficit irrigated cotton, girdling can provide an alternative means to defoliate cotton. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Pelletier, M.G.; Wanjura, J.D.; Holt, G.A. Chemical-Free Cotton Defoliation by; Mechanical, Flame and Laser Girdling. Agronomy 2017, 7, 9.
Pelletier MG, Wanjura JD, Holt GA. Chemical-Free Cotton Defoliation by; Mechanical, Flame and Laser Girdling. Agronomy. 2017; 7(1):9.Chicago/Turabian Style
Pelletier, Mathew G.; Wanjura, John D.; Holt, Greg A. 2017. "Chemical-Free Cotton Defoliation by; Mechanical, Flame and Laser Girdling." Agronomy 7, no. 1: 9.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.