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Phytotoxicity of Water Extracts of Fruit, Stems, and Roots of the Tomato Plant and a Technique for Its Determination 1
Author(s) -
Simmons R. Walter,
Axley John H.
Publication year - 1970
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1970.00021962006200030037x
Subject(s) - phytotoxicity , petri dish , germination , shoot , biology , horticulture , agronomy , plant roots , bioassay , botany , genetics
A modified “rag doll” test was used to demonstrate that the entire tomato plant does not exhibit uniform toxicity to wheat seedlings. The major toxicity resides in the fruit as opposed to vines and roots. The “rag doll” test for seed germination was modified to become a biological toxin assay test. It had a coeffi. dent of variation of 37.9% and 35.9% for roots and shoots which is comparable to 79.8% and 64.4% for the petri dish test.