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Effects of Different Types of Sand and Vermiculite Grades on the Test Tube Method for Evaluating Preinoculated Seed 1
Author(s) -
Schoen J. F.,
Kramer N.
Publication year - 1981
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/cropsci1981.0011183x002100020038x
Subject(s) - vermiculite , biology , inoculation , rhizobium , tube (container) , horticulture , agronomy , botany , materials science , composite material
Combinations of two types of sand and two grades of vermiculite in test tubes (25 × 200 mm) were evaluated for growth of seedlings with root nodules at 21 days of age. Rhizobium ‐inoculated alfalfa seeds were planted two per test tube. Each type of sand was suitable for testing provided it was washed free of fine particles. Seedlings grown in substrate combinations which included the vermiculite having smaller (0.32 cm) particle sizes produced fewer nodules regardless of the sand type.