@article{robbins_pharr_1989, title={Short-term cooling of cucumber roots alters leaf carbohydrate metabolism}, volume={24}, number={1}, journal={HortScience}, author={Robbins, N. S. and Pharr, D. M.}, year={1989}, pages={140} }
 @article{robbins_pharr_1988, title={EFFECT OF RESTRICTED ROOT-GROWTH ON CARBOHYDRATE-METABOLISM AND WHOLE PLANT-GROWTH OF CUCUMIS-SATIVUS L}, volume={87}, ISSN={["0032-0889"]}, DOI={10.1104/pp.87.2.409}, abstractNote={The effects of varied rooting volumes on root growth and source leaf carbohydrate metabolism were studied in greenhouse-grown cucumber (Cucumis sativus L cv Calypso) plants. Plants were grown for 7 weeks in container volumes that ranged from 0.4 to 5.9 liters. Plants grown in the smaller containers exhibited less leaf expansion, lower root and shoot weight, and fewer lateral stems than plants grown in the 5.9 liter containers. Shoot/root ratio was not altered by the container volume, suggesting coordination of root and shoot growth due to rooting volume. Source leaf carbon exchange rates, assimilate export rates, and starch accumulation rates for plants grown in 0.4 liter containers were approximately one-half or less in comparison to those for plants grown in 5.9 liter containers. Starch concentrations per unit leaf area were maintained at high levels in source leaves of plants grown in 0.4 liter containers over the entire day/night cycle. Lower extractable galactinol synthase activities and higher galactinol concentrations occurred in leaves of plants grown in 0.4 liter container volumes. The reduced sink demand, induced by restricted root growth, may have led to increased starch concentrations and to a reduction in stachyose biosynthesis in cucumber source leaves.}, number={2}, journal={PLANT PHYSIOLOGY}, author={ROBBINS, NS and PHARR, DM}, year={1988}, month={Jun}, pages={409–413} }
 @article{robbins_pharr_1987, title={REGULATION OF PHOTOSYNTHETIC CARBON METABOLISM IN CUCUMBER BY LIGHT-INTENSITY AND PHOTOSYNTHETIC PERIOD}, volume={85}, ISSN={["0032-0889"]}, DOI={10.1104/pp.85.2.592}, abstractNote={The effects of photosynthetic periods and light intensity on cucumber (Cucumis sativus L.) carbon exchange rates and photoassimilate partitioning were determined in relation to the activities of galactinol synthase and sucrose-phosphate synthase. Carbon assimilation and partitioning appeared to be controlled by different mechanisms. Carbon exchange rates were influenced by total photon flux density, but were nearly constant over the entire photoperiod for given photoperiod lengths. Length of the photosynthetic periods did influence photoassimilate partitioning. Assimilate export rate was decreased by more than 60% during the latter part of the short photoperiod treatment. This decrease in export rate was associated with a sharp increase in leaf starch acccumulation rate. Results were consistent with the hypothesis that starch accumulation occurs at the expense of export under short photoperiods. Galactinol synthase activities did not appear to influence the partitioning of photoassimilates between starch and transport carbohydrates. Sucrose phosphate synthase activities correlated highly with sugar formation rates (sucrose, raffinose, stachyose + assimilate export rate, r = 0.93, alpha = 0.007). Cucumber leaf sucrose phosphate synthase fluctuated diurnally in a similar pattern to that observed in vegetative soybean plants.}, number={2}, journal={PLANT PHYSIOLOGY}, author={ROBBINS, NS and PHARR, DM}, year={1987}, month={Oct}, pages={592–597} }