Narvaez, Enrique Sanchez (author / Inter-american Institute for Cooperation in Agriculture, Costa Rica) and Stephen, Victor R. (author / Institute for Cooperation in Agriculture, Costa Rica)
Format:
unknown
Publication Date:
1957-03
Published:
Costa Rica
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 177 Document Number: C30384
4 pages., Via journal article., Learning by doing plays a critical role in a learner’s conceptual understanding. By actively engaging with a concept, students gain experience and develop an enduring understanding of the concept. The concept of pollen viability is a critical component in the field of plant breeding and can be used to explain various aspects of pollen quality. An inquiry activity was designed to expose undergraduate students in a horticulture course to the concept of pollen viability and its application. The entire class was tasked with collaborating to identify an in vitro germination medium optimized to germinate plumeria (Plumeria rubra) pollen. To determine optimum sucrose and pH concentrations of the medium, student groups were assigned treatments of pollen from two plumeria cultivars that were germinated in Brewbaker and Kwack media of differing sucrose and pH concentrations. Students calculated the percentage of germinated pollen and assessed pollen tube integrity and used these variables as evidence of an optimized medium. Although undergraduates were engaged in authentic research practices during the inquiry activity, lack of time and resources impeded completion of the activity. However, students were exposed to methods and instrumentation directly related to evaluating pollen viability. Moreover, they were exposed to the basic practice of pollen quality assessment that they can use to carry out investigations on pollen fertility. In addition, insight was gained to improve the inquiry activity in the future. Now, well-informed modifications to the inquiry activity can be made to pilot this activity in a formal horticulture laboratory section.
Richardson, J.G. (author), Riddick, G.F. (author), and Stephenson, J.D. (author)
Format:
Conference paper
Publication Date:
1996
Published:
USA
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 103 Document Number: C08836
Notes:
The 93rd annual meeting of the Southern Association of Agricultural Scientists --Communications Section. Greensboro, North Carolina. February 4-7, 1996; p. 57-60
Salcedo, Rudy N. (author) and Woods, John L. (author)
Format:
Course materials
Publication Date:
1972-01-01
Published:
USA
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 195 Document Number: D07999
Notes:
John L.Woods Collection, Course outline and reference materials for a course taught at the University of Illinois, Urbana. Six pages of syllabus, plus a packet of references.
