Identifying phloem in a conifer stem cross-section requires careful observation and attention to several key characteristics. These features, when considered together, can help differentiate phloem ...
Plant and Soil, Vol. 155/156, Selected papers from the PROCEEDINGS OF THE TWELFTH INTERNATIONAL PLANT NUTRITION COLLOQUIUM (October 1993), pp. 273-276 (4 pages) Xylem sap of sinker (tap) root, cluster ...
Journal of Experimental Botany, Vol. 48, No. 311 (JUNE 1997), pp. 1229-1239 (11 pages) Maize (Zea mays L.) was grown in quartz sand culture either with a normal root system (controls) or with seminal ...
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