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Role of nano‐range amphiphilic polymers in seed quality enhancement of soybean and imidacloprid retention capacity on seed coatings
Author(s) -
Adak Totan,
Kumar Jitendra,
Shakil Najam A,
Pandey Sushil
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7643
Subject(s) - imidacloprid , polymer , amphiphile , nano , materials science , chemical engineering , chemistry , agronomy , composite material , pesticide , copolymer , biology , engineering
BACKGROUND Nano‐size and wide‐range solubility of amphiphilic polymers (having both hydrophilic and hydrophobic blocks) can improve uniformity in seed coatings. An investigation was carried out to assess the positive effect of amphiphilic polymers over hydrophilic or hydrophobic polymers as seed coating agents and pesticide carriers. RESULTS Amphiphilic polymers with 127.5–354 nm micelle size were synthesized in the laboratory using polyethylene glycols and aliphatic di‐acids. After 6 months of storage, germination of uncoated soybean seeds decreased drastically from 97.80 to 81.55%, while polymer‐coated seeds showed 89.44–95.92% germination. Similarly, vigour index‐1 was reduced from 3841.10 to 2813.06 for control seeds but ranged from 3375.59 to 3844.60 for polymer‐coated seeds after 6 months. The developed imidacloprid formulations retained more pesticide on soybean seed coatings than did a commercial formulation (Gaucho ® 600 FS ). The time taken for 50% release of imidacloprid from seed coatings in water was 7.12–9.11 h for the developed formulations and 0.41 h for the commercial formulation. CONCLUSION Nano‐range amphiphilic polymers can be used to protect soybean seeds from ageing. Formulations as seed treatments may produce improved and sustained efficacy with minimum environmental contamination. © 2016 Society of Chemical Industry