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Mechanical Scarification of Cicer Milkvetch ( Astragalus Cicer L.) Seed 1
Author(s) -
Townsend C. E.,
McGinnies W. J.
Publication year - 1972
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1972.0011183x001200030043x
Subject(s) - scarification , germination , biology , astragalus , coat , horticulture , abrasive , agronomy , botany , zoology , materials science , dormancy , composite material , medicine , paleontology , alternative medicine , traditional chinese medicine , pathology
Seed of Astragalus cicer L. was subjected to 30 scarification treatments. The treatments were: the number of times passed through the scarifier (1 through 5); air pressures (2.8, 4.2, and 5.6 kg/cm 2 ); and abrasives (fine and coarse). Seed coat permeability, as measured by percentage germination, was significantly influenced by number of times scarified and air pressure but not by abrasive. However, all factors influenced the percentage of damaged seeds. The most satisfactory treatment was to pass the seeds through the scarifier five times at the 2.8 kg/cm 2 pressure with the fine abrasive. This treatment reduced the percentage hard seed from 54% to 1% without damaging seeds.