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Release of Plant Moisture Stress and Self‐Tripping in Alfalfa 1
Author(s) -
Loper G. M.
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/cropsci1972.0011183x001200040018x
Subject(s) - wilting , tripping , biology , medicago sativa , turgor pressure , horticulture , moisture stress , clone (java method) , water stress , phytotron , moisture , botany , agronomy , chemistry , dna , genetics , circuit breaker , electrical engineering , organic chemistry , engineering
Two experimental clones of alfalfa ( Medicago sativa L.) were vegetatively propagated and grown to flowering in a plant growth chamber. Water was withheld from some of the plants to induce plant moisture stress which was measured by the relative turgidity (R.T.) method. After visible wilting was noted, water was supplied and recovery from water stress and flower tripping were measured periodically. Wilted plants recovered in 90 minutes and approximately 70%, of all open florets on one clone tripped within 2 hours. In this clone, percent of tripping after watering was highly correlated with R.T. of the plant before watering (r = — 0.856). Plants of the second clone similarly recovered from wilting, but no tripping occurred. Tripping in some alfalfas may becaused by recovery of turgidity.