HORT 2134 Lecture Notes - Lecture 10: Thatching, Dicotyledon, Bouteloua Dactyloides
20 Nov 2016
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Unit 10: sustainable lawns and turfgrass in the urban. Lecture: introduction to turfgrass adaptation and sustainability a. Turfgrass- any grass species that persists under periodic mowing and traffic. 1) terminal growing point (crown)- at soil surface and ability to spread by tillers, stolon, rhizomes a) b) Rhizomes- below ground at one inch deep, same as stolons but underground ii. Over 10,000 wp3di3w or grass ion the world, about 25 are adapted as turfgrasses. In virginia we use about 13 species, 7 primarily b. North: kentucky bluegrass, perennial ryegrass, fine fescues, bentgrass. Northeast: tall fescue, some kentucky bluegrass, buffalograss, zoysia, bentgrass. South: bermudagrass, st. augustinegrass, zoysia, seashore paspalum c. Turf-type tall fescue (festuca arundinacea) i) ii) iii) iv) v) Main uses: lawns, parks, roughs, and low-maintenance athletic fields around the state of virginia b) Kentucky bluegrass (poa pratensis) i) ii) iii) iv) Softer, denser, more attratctive than tall fescue but not as stress tolerant.
