Microdetermination of 1-Naphthaleneacetic Acid
نویسندگان
چکیده
منابع مشابه
Simple microdetermination of uric acid.
In 1947 Kalckar introduced a comprehensive differential spectrophotometric system for the analysis of purines, including uric acid (1). Praetorius and his associate Poulsen employed this procedure and have published detailed directions for a practical uric acid method (2, 3). During the past 4 years, over 2000 routine uric acid determinations on blood and urine have been performed in this labor...
متن کاملPolar transport of 1-naphthaleneacetic Acid determines the distribution of flower buds on explants of tobacco.
Upon addition of 1-naphthaleneacetic acid (1-NAA) and benzylaminopurine, flower buds developed on explants from flower stalks of Nicotiana tabacum L. cv Samsun cultured in vitro. At low concentrations of 1-NAA, buds emerged mainly at the basal edge, whereas at high concentrations they developed on the remaining surface. The optimum concentrations for the two groups of buds were 0.45 micromolar ...
متن کاملVariability between silver thiosulfate and 1-naphthaleneacetic acid applications in prolonging bract longevity of potted bougainvillea
Potted bougainvillea `Purple Flower' and `Taipei Red' in four different stages of bract development were sprayed with STS (0.1, 0.5 mM) or NAA (25, 50 ppm) and were moved to lowlight indoor conditions after treatment. The experiment was conducted twice, and the results showed that 0.5 mM STS and NAA (25, 50 ppm) could signi®cantly prolong the longevity of bracts at certain stages in both cultiv...
متن کامل[A modified method for the microdetermination of citric acid].
An investigation of the different steps in the method of Weil-Malherbe & Bone (1949), as modified by Taylor (1953), has led to an altered procedure for citric acid determination, with increased sensitivity and accuracy. The main modifications involved are the use of (i) a higher concentration of sulphuric acid during the formation of pentabromoacetone, and (ii) a thiourea-borax-sodium sulphide ...
متن کاملAuxin-dependent cell division and cell elongation. 1-Naphthaleneacetic acid and 2,4-dichlorophenoxyacetic acid activate different pathways.
During exponential phase, the tobacco (Nicotiana tabacum) cell line cv Virginia Bright Italia-0 divides axially to produce linear cell files of distinct polarity. This axial division is controlled by exogenous auxin. We used exponential tobacco cv Virginia Bright Italia-0 cells to dissect early auxin signaling, with cell division and cell elongation as physiological markers. Experiments with 1-...
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ژورنال
عنوان ژورنال: Journal of Pesticide Science
سال: 1976
ISSN: 1348-589X,1349-0923
DOI: 10.1584/jpestics.1.231