Electrostatic application of pollen sprays: Effects of charging field intensity and aerodynamic shear upon deposition and germinability

S. Edward Law, Hazel Y. Wetzstein, Souvik Banerjee, Dan Eisikowitch

Research output: Contribution to journalArticlepeer-review

Abstract

Pollination deficiencies limit the biological production efficiency of certain high-value agricultural crops. To enhance pollination, an aerodynamic-electrostatic spray process has been developed which incorporates electric forces to transfer approximately 60-μm pollen grains to receptive stigmatic surfaces of flowers. Osmotically balanced carrier-liquid suspensions of almond pollen, pneumatically atomized at up to 276 kPa and induction charged to 12 mC/kg in 1.6-MV/m applied fields, are shown to maintain at least 80% germinability upon electrostatic deposition. Compared with uncharged spray, charged pollen deposition was significantly (∝ = 0.01) increased 5.6-fold as averaged across various target orientations. For difficult targets parallel to the spray's air-carrier stream, the electrodeposition benefit for pollen was maximum (12-fold increase) and air-pressure effects were most pronounced.

Original languageEnglish
Pages (from-to)998-1009
Number of pages12
JournalIEEE Transactions on Industry Applications
Volume36
Issue number4
DOIs
StatePublished - Jul 2000
Externally publishedYes

Fingerprint

Dive into the research topics of 'Electrostatic application of pollen sprays: Effects of charging field intensity and aerodynamic shear upon deposition and germinability'. Together they form a unique fingerprint.

Cite this