940 resultados para Cotton growing--United States


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The bulletin argues against diversification of lower yielding crops for cotton. The argument is primary economic.

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The present invention provides Inter alia, a method for the production of cotton somatic embryos comprising (a) isolating a totipotent stomatal cell-containing epidermal explant from leaf material excised from a cotton plant; and (b) culturing said explant in a basal medium which comprises an embryogenic callus-inducing quantity of an auxin and a cytokinin under an embryogenic callus inducing intensity of light until embryogenic callus is formed; and (c) sub-culturing said embryogenic callus onto a somatic embryo differentiation media to produce said somatic embryos. Plants may be regenerated from the somatic embryos and in a particular embodiment of the invention said totipotent stomatal cell is transformed, prior to the inducement of embryogenic callus, with a polynucleotide that provides for a desired agronomic trait.

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Title on t.p. verso: Illegal immigration to the United States, a growing problem for law enforcement.

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Reproduced from type-written copy.

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Preface signed: Umberto Ricci, chief of service, Statistical Bureau.

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Mode of access: Internet.