Search results for "Gossypium"
showing 3 items of 13 documents
Structural analysis of Gossypium hirsutum fibers grown under greenhouse and hydroponic conditions
2016
Cotton is the one of the world's most important crops. Like any other crop, cotton growth/development and fiber quality is highly dependent on environmental factors. Increasing global weather instability has been negatively impacting its economy. Cotton is a crop that exerts an intensive pressure over natural resources (land and water) and demands an overuse of pesticides. Thus, the search for alternative cotton culture methods that are pesticide-free (biocotton) and enable customized standard fiber quality should be encouraged. Here we describe a culture of Gossypium hirsutum ("Upland" Cotton) utilizing a greenhouse and hydroponics in which the fibers are morphological similar to conventio…
Kinetics of the Biosynthesis of Cellulose in Cotton Bolls by Different Light Intensities
1966
PREVIOUS kinetic investigations of the biosynthesis of cellulose in higher plants suggested that the secondary wall cellulose is synthesized by a structure-controlled mechanism (template mechanism)1–5. In order to confirm my assumption I changed the reaction rate by varying the intensity of illumination of the cotton plants. Cotton plants (Gossypium herbaceum) were grown in a glass-house at a mean temperature of 25° C (the night temperatures never were less than 18° C). The intensity of illumination amounted to 4,000, 15,000 and 60,000 lux respectively (mean values). The time of maturity was calculated from the time the flowers were fertilized. Bolls of different maturities were picked, imm…
Persistent lipsticks and their lip prints: new hidden evidence at the crime scene
2000
Latent lip print test results produced by permanent lipsticks are presented in this work. This cosmetic product, contrary to conventional lipsticks, does not leave visible prints and can thus be overlooked at the crime scene. As print vehicles the study used ceramics, glass, cotton fabric and paper. Lip prints were left to dwell for different periods and were later developed using aluminum powder, cobalt oxide powder and magnetic powder. The results show that identifiable lip prints can be obtained up to 30 days after being produced.