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b - bioassay
- The use of living organisms to quantitatively estimate the amount of biologically active substances present in a sample.
- biomass
- The weight of living organisms (plants and animals) in an ecosystem at a given point in time, expressed either as fresh or dry weight.
- blade
- The part of a leaf of a grass or similar plant above the sheath, also known as the lamina.
- bloat
- Excessive accumulation of gases in the rumen of animals because loss through the esophagus is impaired, causing distension of the rumen.
- bloom, early
- Initial flowering (anthesis) in the uppermost portion of the inflorescence.Synonyms: early bloom
- bloom, full
- Essentially all florets in the inflorescence in anthesis.Synonyms: full bloom
- blooming
- Refers to anthesis in the grass family, or to the period during which florets are open and anthers are extended.
- BNF
- biological nitrogen fixation
- boot stage
- Growth stage when a grass inflorescence is enclosed by the sheath of the uppermost leaf.
- bract
- A modified or reduced leaf subtending a flower or inflorescence such as the glumes and lemmas.
- brassica
- Important species of brassica fall into three groups: turnips, B. rapa L., include common root crops and some rapes with turnip-like leaves; swedes, B. napus L., include not only the swedes proper but the common or oil bearing rapes; and cabbages, B. oleracea L., include the common vegetable and also the forage crops thousand-headed kale and marrowstem kale.
- brown patch
- brown patch
Latin name Pellicularia filamentosa (Pat.) Rogers.
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