Phenotypical and physiological evaluation of Spondias species grafted on umbuzeiro (Spondias tuberosa Cam) rootstock.

Content Provider	Semantic Scholar
Author	Moacir, José Lima, P. C. De Filho Santos, Carlos Antônio Fernandes
Copyright Year	2009
Abstract	The experiment was carried out at the Embrapa Semi-Arid, Petrolina, Pernambuco State, Brazil aiming to study the behavior of five species of the genus Spondias: umbu-caja ( Spondias sp .), umbuguela ( Spondias sp .), caja (S. lutea L.), caja-manga ( S. cytherea Sonn.) e ceriguela ( S. purpurea L.) grafted on umbuzeiro ( S. tuberosa Cam), which presents a specialized root system bearing tubers. Five-years old plants, spaced by 10.0 m x 10.0 m were studied under rainfed conditions based on phenotypic and physiological data acquisition. The results indicated the occurrence of high levels of graft unions and good vegetative performance of all species, suggesting the occurrence of week incompatibility barriers among them and the rootstock. Consequently, all grafted species presented a internal water balance recovering similar to the umbuzeiro due to the presence of tubers in the root system. Despite the improvement on the species' water balance, the values on stomatal conductance, transpiration and photosynthesis significantly decreased along the experimental period suggesting the existing of a signal present in the root system that controls the stomatal aperture, although to the umbuzeiro, the reduction on gas exchange was less steeped.
Starting Page	59
Ending Page	63
Page Count	5
File Format	PDF HTM / HTML
Volume Number	22
Alternate Webpage(s)	https://www.redalyc.org/pdf/2371/237117625008.pdf
Alternate Webpage(s)	https://periodicos.ufersa.edu.br/index.php/caatinga/article/download/148/pdf
Alternate Webpage(s)	https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA-2009-09/40380/1/OPB2258.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article