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Articles 1 - 5 of 5
Full-Text Articles in Plant Sciences
Deep Pipe Irrigation, David A. Bainbridge
Deep Pipe Irrigation, David A. Bainbridge
David A Bainbridge
Deep pipe irrigation uses a vertically placed section of pipe to deliver water to the roots of plants. This reduces evaporation and increases water use efficiency. Deep pipes can be filled by hand, drip or rainwater catchment.
Planting Desert Sites, David A. Bainbridge
Planting Desert Sites, David A. Bainbridge
David A Bainbridge
Desert planting requires great care in preparing plants, handling plants and planting. With proper consideration of soil, climate and water availability plants can be established despite severe conditions of high temperatures, high winds, herbivory and lack of water.
Super Efficient Irrigation With Buried Clay Pots, David A. Bainbridge
Super Efficient Irrigation With Buried Clay Pots, David A. Bainbridge
David A Bainbridge
Buried clay pot irrigation was first described in an agricultural extension bulletin in China more than 2000 years ago. The clay pot provides demand responsive irrigation at very high efficiency. Clay pot irrigation can be 5-10 times more efficient than conventional irrigation. It is being used more widely in Asia, Africa, Latin American and the US.
The Philadelphia Award For 1960: Allston Jenkins, James Gross
The Philadelphia Award For 1960: Allston Jenkins, James Gross
James Gross
This biography of Allson Jenkins is part of a collective work for recipients of the Philadelphia Award. Allston Jenkins won the award in 1960 for his efforts in environmental conservation and preservation. He helped preserve the Tinicum Marsh, renamed the John Heinz National Wildlife Refuge, located in Philadelphia, PA and Delaware County.
Pollen Dispersal In Low-Density Populations Of Three Neotropical Tree Species, Jason D. Nason, E. A. Stacy, J. L. Hamrick, S. P. Hubbell, R. B. Foster, R. Condit
Pollen Dispersal In Low-Density Populations Of Three Neotropical Tree Species, Jason D. Nason, E. A. Stacy, J. L. Hamrick, S. P. Hubbell, R. B. Foster, R. Condit
Jason D Nason
Studies of mating patterns of tropical trees, typically involving common species, have revealed that most species are outcrossed and that, in some cases, a significant reaction of outcross pollen moves long distances. We evaluated mating systems and effective pollen dispersal for three hermaphroditic insect-pollinated Neotropical tree species, Calophyllum longifolium, Spondias mombin and Turpinia occidentalis, all of which occurred at low adult densities at the study site. Mating patterns were estimated for each maternal tree within 84-ha populations of C. Longifoliuman d S. mombin in 1992 and 1993 and within a 50-ha population of T. occidentalis in 1993. Each population was …