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Relationship of Creeping Bentgrass (Agrostis palustris Huds.) Root Growth to Environmental Factors in the Field 1
Author(s) -
Beard James B.,
Daniel William H.
Publication year - 1966
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/agronj1966.00021962005800030027x
Subject(s) - agrostis , elongation , agronomy , drop (telecommunication) , moisture , root (linguistics) , biology , poaceae , environmental science , chemistry , materials science , telecommunications , linguistics , philosophy , organic chemistry , computer science , metallurgy , ultimate tensile strength
Temperature was found to be the most consistent environmental factor in accounting for variation in root number and color of irrigated creeping bentgrass. Soil temperature at the 6‐inch depth was most highly correlated with root growth. Light intensity ranked second in accounting for variation in root activity while soil moisture was quite low. There were only two times when new roots were produced. In both cases, this new root growth occurred right after a very sharp drop in temperature suggesting that lower temperatures either initiate root elongation or are required for the elongation of new roots from bentgrass crowns.