Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Fragmentation of cotton bract and a technique for detecting bract in cotton dust.

Authors
Morey-PR; Raymer-PL
Source
Agron J 1978 Jul-Aug; 70(4):644-648
NIOSHTIC No.
00091820
Abstract
Structural and friability changes occurring in cotton bract during postanthesis development were investigated and a fluorescent dyeing technique for following the micronization of cotton bract was developed. Observation of tissue sections prepared from bracts showed that the change in friability was associated with an increased number of lignified bundle sheath parenchyma cells and tracheary elements in bract veins. Other anatomical changes accompanying bract senescence included significant decreases in epidermal, mesophyll, and lamina thickness at or shortly after the time of capsule dehiscence. Dyed plant trash was distinguished from undyed trash particles of the same size by observation with an epifluorescence microscope. The authors conclude that this tracer technique can be used to establish what proportion of respirable dust emitted in the textile mill is directly attributable to the cotton bract.
Keywords
NIOSH-Publication; NIOSH-Grant; Control-technology; Air-sampling-equipment; Particulate-dust; Particulate-sampling; Pulverization; Analytical-methods; Airway-response-disorders; Respiratory-system-disorders; Textile-industry; Cotton-mill-workers; Cotton-dust; Cotton-ginning
Contact
Biological Sciences Texas Tech University Post Office Box 4149 Lubbock, Ten 79409
CODEN
AGJOAT
Publication Date
19780701
Document Type
Journal Article
Funding Amount
54181
Funding Type
Grant
Fiscal Year
1978
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-00667
Issue of Publication
4
ISSN
0002-1962
Priority Area
Control-technology
Source Name
Agronomy Journal
State
TX
Performing Organization
Texas Tech University, Lubbock, Texas
TOP