. The botany of crop plants : a text and reference book. Botany, Economic. LEGUMINOS^ 445 "automatic" tripping. Humidity and temperature condi- tions are probable causative factors in automatic tripping. Both self- and cross-pollination are effective in alfalfa. untrippcd. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Robbins, Wilfred William, 1884-1952. Philadelphia : P. Blakiston's Son

---

Size: 1044px × 2393px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectbotanyeconomic