TY - JOUR
T1 - Effect of root competition and shade on survival and growth of nine woody plant taxa within a pecan [Carya illinoinensis (Wangenh.) C. Koch] alley cropping system
AU - Fletcher, Edward H.
AU - Thetford, Mack
AU - Sharma, Jyotsna
AU - Jose, Shibu
N1 - Funding Information:
Mack Thetford: Submitted in partial fulfillment of a M.S. theses requirement. This project supported in part by a United States Department of Agriculture Tropical Subtropical Agricultural Research—Caribbean Management Grant. Mention of a trademark, proprietary product, or vendor does not constitute a guarantee or warranty of the product by the Florida Agriculture Experiment Station and does not imply its approval to the exclusion of other products or vendors that also may be suitable.
PY - 2012/9
Y1 - 2012/9
N2 - Suitability for production of woody floral stems in a pecan [Carya illinoinensis (Wangenh.) C. Koch] alley cropping was determined for nine shrub species in northwest Florida. Treatments included partial shade without root competition, partial shade with root competition, and full sun. Only three species had high rates of survival for all treatments throughout both years of the study: Callicarpa americana L. (American beautyberry), C. americana var. Lactea (white American beautyberry), and Crataegus marshallii Eggl. (parsley haw). For C. americana, plant growth index increased through time and was similar among the three treatments, indicating that this species grew equally well in sun or shade irrespective of root competition from the tree crop. C. americana var. Lactea had similarly high rates of survival and grew largest in partial shade without root competition (81. 7 cm) compared to partial shade with root competition (67. 2 cm) and full sun (57. 0 cm). C. marshallii had 100 % survival in partial shade without root competition, with one mortality in partial shade with root competition (91. 7 % survival) and one in full sun (91. 7 % survival). Growth index did not increase over time and was similar among all three treatments. Other species tested had low rates of survival in all treatments throughout both years of the study and included: Ilex glabra L. (inkberry), Ilex myrtifolia Walt. (myrtle-leaf holly), Hydrangea paniculata Seibold var. 'Tardiva' (panicle hydrangea), Hydrangea quercifolia Bart. (oakleaf hydrangea), Lyonia lucida (Lam.) K. Koch, and Salix matsudana Koidz. F. tortuosa Rehd. (corkscrew willow). No species produced sufficient flowers, fruits or ornamental stems during this establishment period to allow a florist evaluation of the stems for use as woody floral stems.
AB - Suitability for production of woody floral stems in a pecan [Carya illinoinensis (Wangenh.) C. Koch] alley cropping was determined for nine shrub species in northwest Florida. Treatments included partial shade without root competition, partial shade with root competition, and full sun. Only three species had high rates of survival for all treatments throughout both years of the study: Callicarpa americana L. (American beautyberry), C. americana var. Lactea (white American beautyberry), and Crataegus marshallii Eggl. (parsley haw). For C. americana, plant growth index increased through time and was similar among the three treatments, indicating that this species grew equally well in sun or shade irrespective of root competition from the tree crop. C. americana var. Lactea had similarly high rates of survival and grew largest in partial shade without root competition (81. 7 cm) compared to partial shade with root competition (67. 2 cm) and full sun (57. 0 cm). C. marshallii had 100 % survival in partial shade without root competition, with one mortality in partial shade with root competition (91. 7 % survival) and one in full sun (91. 7 % survival). Growth index did not increase over time and was similar among all three treatments. Other species tested had low rates of survival in all treatments throughout both years of the study and included: Ilex glabra L. (inkberry), Ilex myrtifolia Walt. (myrtle-leaf holly), Hydrangea paniculata Seibold var. 'Tardiva' (panicle hydrangea), Hydrangea quercifolia Bart. (oakleaf hydrangea), Lyonia lucida (Lam.) K. Koch, and Salix matsudana Koidz. F. tortuosa Rehd. (corkscrew willow). No species produced sufficient flowers, fruits or ornamental stems during this establishment period to allow a florist evaluation of the stems for use as woody floral stems.
KW - Agroforestry
KW - Tree-Crop interactions
KW - Woody floral stems
UR - http://www.scopus.com/inward/record.url?scp=84865441409&partnerID=8YFLogxK
U2 - 10.1007/s10457-012-9507-7
DO - 10.1007/s10457-012-9507-7
M3 - Article
AN - SCOPUS:84865441409
SN - 0167-4366
VL - 86
SP - 49
EP - 60
JO - Agroforestry Systems
JF - Agroforestry Systems
IS - 1
ER -