Abstract: A downhole valve apparatus including a force transmitter configured to move in an axial direction and a valve actuator configured to move in an axial direction. The valve actuator is independently movable relative to the force transmitter and physically isolated from the force transmitter. A first magnetic assembly is disposed at the force transmitter. A second magnetic assembly is disposed at the valve actuator. The first and second magnetic assemblies are configured to repel one another and cause the force transmitter to move the valve actuator when the force transmitter is moved toward the valve actuator.

Abstract: A downhole valve apparatus includes: a force transmitter configured to move in an axial direction; a valve actuator configured to move in an axial direction, the valve actuator independently movable relative to the force transmitter and physically isolated from the force transmitter; a first magnetic assembly disposed at the force transmitter; and a second magnetic assembly disposed at the valve actuator, the first and second magnetic assemblies configured to repel one another and cause the force transmitter to move the valve actuator when the force transmitter is moved toward the valve actuator.

Abstract: New and distinct varieties of Chrysanthemum cinerariaefolium plants exhibit environmental stress tolerance over a temperature range extending as low as about 17.degree. F. and as high as about 115.degree. F., and are also capable of producing flowers having an endogenous pyrethrin content of at least about 1.5%. The new varieties include both triploid plants which are largely sterile, and diploid plants which exhibit good cross fertility.

Abstract: The present invention relates to a method for inducing male sterility in plants which comprises treating seeds of a plant receptive to said treatment by application of an effective amount of a compound of the formula: ##STR1## wherein R and R.sup.1 are hydrogen, alkyl, alkenl, alkynl, allyl, aryl, halogen or boron and may be the same or different;X and X.sup.1 are fluorine, chlorine, bromine or iodine; nitrate, sulfate, sulfonate, phosphate, citrate, or maleate;n and n.sup.1 are the integers 0 or 1, and may be the same or different;m and m.sup.1 are integers from 0 to 4, and may be the same or different;for a period of time and under conditions sufficient to induce male sterility in adult plants which are grown from said treated seeds.

Abstract: The present invention relates to a method for inducing male sterility in plants which comprises treating seeds of a plant receptive to said treatment by application of an effective amount of a compound of the formula: ##STR1## wherein R and R.sup.1 are hydrogen, alkyl, alkenl, alkynl, allyl, aryl, halogen or boron and may be the same or different;X and X.sup.1 are fluorine, chlorine, bromine or iodine; nitrate, sulfate, sulfonate, phosphate, citrate, or maleate;n and n.sup.1 are the integers 0 or 1, and may be the same or different;m and m.sup.1 are integers from 0 to 4, and may be the same or different;for a period of time and under conditions sufficient to induce male sterility in adult plants which are grown from said treated seeds.

Abstract: Plant seed and seedlings are treated with compositions including nucleosides and/or nucleotides and with a buffering agent to achieve enhancement of emergence and seedling growth characteristics. In a preferred embodiment, seed is surface treated with an aqueous solution of 2.times.10.sup.-2 M adenosine monophosphate buffered at about pH 7.0 with phosphoric acid salts.

Abstract: A new and distinct cultivar of Chrysanthemum cinerariaefolium known by the cultivar name Arizona, and particularly characterized by the combined characteristics of high pyrethrin content, environmental stress tolerance, uniform flower stalk extension and substantially erect growth.