Abstract: A new hop plant particularly distinguished by having a cylindrical plant shape, large bracts, and a fruity, tropical fruit flavor, is disclosed.

Abstract: A new hops plant particularly distinguished by having a cylindrical plant shape, alpha acid content of 7.4% in dry matter, a ratio content of beta to alpha of 0.5, a content of cohumulone to alpha acids of 33%, and a flowery, rose flavor, is disclosed.

Abstract: A new hops plant particularly distinguished by having a conical plant shape, alpha acid content of 4.2% in dry matter, a ratio content of beta to alpha of 1.1, a content of cohumulone to alpha acids of 48%, and a fruity, grape and citrus flavor, is disclosed.

Abstract: A new hops plant particularly distinguished by having a cylindrical plant shape, alpha acid content of 13.4% in dry matter, a ratio content of beta to alpha of 0.6, a content of cohumulone to alpha acids of 32%, and a flowery and fruity flavor, is disclosed.

Abstract: DNA, a gene derived from the genome of the hop latent virus, encoding the coat protein of the virus. The DNA is useful of a development of an efficient gene diagnostic method for detecting the hop latent virus-infected plant.

Abstract: The hop mosaic virus (HMV) gene has been isolated and purified, and the base sequence thereof elucidated. HMV can be detected by simple and accurate methods using nucleic sequences from the isolated HMV gene. These methods are especially useful for detecting HMV infection in plants. Using the methods provided by the present invention, it is possible to detect HMV more simply and accurately as compared to the conventional immunological methods, such as ELISA.

Abstract: DNA, a gene derived from the genome of the hop latent virus, encoding the coat protein of the virus and having the base sequence described in the sequence identification number 1 in the sequence listing. The DNA is useful of a development of an efficient gene diagnostic method for detecting the hop latent virus-infected plant.

Abstract: Disclosed is a method for producing virus-free, rootstocks of hop, which comprises growing a cultured virus-free hop strain in a rooting medium thereby to make it shoot out roots therein followed by culture it in a rootstocks of hop-producing medium having a high saccharide concentration thereby to form rootstocks of hop in the medium. The virus-free, rootstocks of hop are produced under aseptic conditions and are out of the danger of their contamination with viruses, pathogenic vermian or parasites. The plants are highly safe and can be stored well. When planted, these actively shoot out roots and sprouts.

Abstract: A new and distinct variety of Hops, named Hokuto-Ace, is described, which matures rapidly, has excellent bitterness and aroma, and exhibits increased disease resistance, particularly toward downy mildew and gray mold.

Abstract: A new hop plant particularly distinguished by having a conical plant shape, alpha acid content of 4.2% in dry matter, a ratio content of beta to alpha of 1.1, a content of cohumulone to alpha acids of 48%, and a fruity, grape and citrus flavor, is disclosed.

Abstract: A new hop plant particularly distinguished by having a cylindrical plant shape, alpha acid content of 7.4% in dry matter, a ratio content of beta to alpha of 0.5, a content of cohumulone to alpha acids of 33%, and a flowery, rose flavor, is disclosed.

Abstract: A new hop plant particularly distinguished by having a cylindrical plant shape, alpha acid content of 13.4% in dry matter, a ratio content of beta to alpha of 0.6, a content of cohumulone to alpha acids of 32%, and a flowery and fruity flavor, is disclosed.

Abstract: A new hop plant particularly distinguished by having a cylindrical plant shape, large bracts, and a fruity, tropical fruit flavor, is disclosed.