The effects of artificial shading The effects of artificial shading on plant growth in Louisiana effectsofartific279shan Year: 1913 Bui. 279, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate II. Fig. 1.âGeneral Appearance of Cotton Plants 30 Days After Germination in Bed A. Shades as Numbered; 1 Indicates Least Illumination and 6 Normal Light. â â r ft* 1/ ' Fig. 2.âGeneral Appearance of Cotton Plant 30 Days After Germination in Bed B. Shades as Numbered; 1 Indicates Least Illumination and 6 Normal Light.


Size: 1914px × 1045px
Photo credit: © Bookworm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage