Response of several crop plants and weeds to maleic hydrazide
AuthorsA. S. Crafts
H. B. Currier
B. E. Day
Authors AffiliationsA. S. Crafts was Professor of Botany and Botanist in the Experiment Station; H. B. Currier was Assistant Professor of Botany and Assistant Botanist in the Experiment Station; B. E. Day was Junior Plant Pathologist, Citrus Experiment Station, Riverside, California.
Hilgardia 20(4):57-80. DOI:10.3733/hilg.v20n04p057. July 1950.
The results in brief …
Maleic hydrazide has been found to have selective herbicidal action on weedy grasses. Young plants are more susceptible to injury by it than are old plants. This relation of maturity to injury applies to crop plants as well as to weedy grasses.
Maleic hydrazide is particularly toxic to grass species. It affects plants when applied at low concentration; it causes growth abnormalities; it apparently acts on plant meristems at a distance from the point of application. For these reasons, it is concluded that maleic hydrazide has hormone properties.
Addition of a wetting agent increases the effects of maleic hydrazide, presumably by improving the contact with the plant tissues.
Many vegetable crops show growth inhibition from maleic hydrazide treatment; growth abnormalities occur on some. On tomato, the abnormalities resemble virus symptoms.
A common response to maleic hydrazide is anthocyanin pigmentation. This might result from carbohydrate accumulation in the leaves.
Currier H. B., Crafts A. S. Maleic hydrazide, a selective herbicide. Science. 1950. 111:152-153. DOI: 10.1126/science.111.2876.152 [CrossRef]
Hoffmann O. L., Schoene D. L. Maleic hydrazide, a unique growth regulant. Mimeo. Naugatuck Chemical Division. 1949. U. S. Rubber Company.
Kunkel L. O. Viruses in relation to the growth of plants. Torreya. 1943. 43:87-95.
Schoene D. L., Hoffmann O. L. Maleic hydrazide, a unique growth regulant. Science. 1949. 109:588-590. DOI: 10.1126/science.109.2841.588-a [CrossRef]
Zimmerman P. W. The formative influences and comparative effectiveness of various plant hormone-like compounds. Torreya. 1943. 43:98-115.
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Testing effects of low- vs. high-level protein concentrate mixes for dairy milk production
For-hire trucking of exempt commodities by nonregulated carriers
Winter annual weed control with diuron in Antelope valley alfalfa hay
Research with parasites for biological control of house flies in southern California
Water penetration in strawberries aided by seeding grain in furrows
Crossbred rams outlive purebred Suffolks and Hampshires in Glenn County Testing Program