- 産業: Agriculture
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An insect that sucks the sap of the developing grains, causing serious rice crop losses. The species of rice bugs of major economic significance are Leptocorisa acuta, L. oratorius, and L. chinensis. The nymphs and adults are difficult to recognize in the rice field because of their color. The freshly hatched nymphs are tiny and green but become brownish as they grow. Both nymphs and adults feed on rice plants.
Industry:Agriculture
A fungus disease of rice which is characterized by the presence of spindle-shaped lesions. The lesion develops a grayish center and a brownish margin. The disease can have different forms: leaf blast, node blast, or neck blast.
Industry:Agriculture
A common name for the genus Oryza, an extremely important crop grown in the Asian arc and other parts of the world as the staple diet of the people.
Industry:Agriculture
1). Occurs in three major forms -- as messenger RNA, transfer RNA, and ribosomal RNA. Some RNA molecules are the genetic molecules of viruses (e.g., tobacco mosaic virus and HIV) and viroids. Some RNA molecules may have enzymatic activity (see ribozymes). 2). Any of various nucleic acids that yield ribose as one product of hydrolysis, that are found in the cytoplasm and sometimes in the nucleus. 3). Required for the synthesis of proteins in all living systems It consists of a linear array of the nucleotides cytidine-, guanosine-, adenosine-, and uridine-s'-monophosphates.
Industry:Agriculture
The zone of soil where the microbial population is altered both quantitatively and qualitatively by the presence of plant roots.
Industry:Agriculture
An underground stem--distinguished from a root by the presence of buds and scales--which is capable of creeping and producing new shoots.
Industry:Agriculture
