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United States Department of Agriculture
行业: Government
Number of terms: 41534
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Regulatory elements of an operon to which activators or repressors bind to effect the transcription of genes in the operon.
Industry:Agriculture
Regulatory elements of an operon to which activators or repressors bind to effect the transcription of genes in the operon.
Industry:Agriculture
The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA.
Industry:Agriculture
The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA.
Industry:Agriculture
A soil water regime where soil moisture is sufficiently high to meet plant needs throughout the year. This regime is common for soils in humid zones and is typical for about one third of the worldwide land area.
Industry:Agriculture
A soil water regime where soil moisture is sufficiently high to meet plant needs throughout the year. This regime is common for soils in humid zones and is typical for about one third of the worldwide land area.
Industry:Agriculture
The ustic moisture regime is intermediate between the aridic regime and the udic regime. Generally, there is plant available water during the growing season although significant periods of drought may occur during the year.
Industry:Agriculture
The ustic moisture regime is intermediate between the aridic regime and the udic regime. Generally, there is plant available water during the growing season although significant periods of drought may occur during the year.
Industry:Agriculture
The xeric moisture regime has very limited plant available water due to long periods of drought. The soil is usually moist for less than 45 consecutive days during the growing season. This regime is typical in areas of Mediterranean climates, where winters are moist and cool and summers are warm and dry.
Industry:Agriculture
The xeric moisture regime has very limited plant available water due to long periods of drought. The soil is usually moist for less than 45 consecutive days during the growing season. This regime is typical in areas of Mediterranean climates, where winters are moist and cool and summers are warm and dry.
Industry:Agriculture