Table 1. Experimental planting sites on north Padre Island. 



Description 



Planting 

 dates 



Comments 









1,200-foot sea oats (Twin 



Mar. 



Original plantings, three- 



Batteries) 



1969 



fourths saltmeadow cord- 

 grass and one- fourth sea 

 oats. Percent survival: 

 cordgrass, 14; sea oats, 

 46. Cattle grazing an 

 early problem. Supple- 

 mental fill-in plantings 

 of sea oats, cordgrass, 

 and panicum (shoredune 

 and bitter) . 



1,500-foot monthly plant- 



1969 



Test plantings in small 



species comparisons 





blocks of bitter panicum, 





to 



sea oats, saltmeadow 

 cordgrass, and seashore 





1970 



dropseed; planted over 

 2 years. Survival: 

 irregular; dune not 

 uniform. 



400-foot dune-width extension 



Apr. 



3:1 mixture of bitter 



plot. Planted gulfward of 





panicum to sea oats. 



south end of monthly plantings 



1973 



Percent survival : 

 panicum, 62; sea oats, 1. 



1,100-foot bitter panicum 



Feb. 



Bitter panicum alternated 

 with sea oats seed. Per- 





1970 



cent survival: panicum, 

 17; sea oats, unsuccessful. 

 Subsequent patchwork 

 planting. 



1,200-foot dune-width bitter 



Feb. 



North half planted with 



panicum 



1972 



bitter panicum; 76 per- 





and 



cent survival . South 





Apr. 



half planted with sea oats 





1972 



but destroyed by jack- 

 rabbits. Replanted in 

 April with bitter panicum; 

 17-percent survival. 



14 



