@article{peet_sato_clément_pressman_2003, title={Heat Stress Increases Sensitivity of Pollen, Fruit and Seed Production in Tomatoes (Lycopersicon Esculentum Mill.) to non-optimal Vapor Pressure Deficits}, volume={11}, ISBN={["90-6605-439-5"]}, ISSN={0567-7572 2406-6168}, url={http://dx.doi.org/10.17660/actahortic.2003.618.23}, DOI={10.17660/actahortic.2003.618.23}, number={618}, journal={Acta Horticulturae}, publisher={International Society for Horticultural Science (ISHS)}, author={Peet, M. and Sato, S. and Clément, C. and Pressman, E.}, year={2003}, month={Nov}, pages={209–215} } @article{sato_peet_thomas_2002, title={Determining critical pre- and post-anthesis periods and physiological processes in Lycopersicon esculentum Mill. exposed to moderately elevated temperatures}, volume={53}, ISSN={["0022-0957"]}, DOI={10.1093/jexbot/53.371.1187}, abstractNote={To determine the thermosensitive periods and physiological processes in tomato flowers exposed to moderately elevated temperatures, tomato plants (Lycopersicon esculentum Mill., cv. NC 8288) were grown at 28/22 degrees C or 32/26 degrees C day/night temperature regimes and then transferred to the opposite regime for 0-15 d before or 0-24 h after anthesis. For plants initially grown at 28/22 degrees C, moderate temperature stress before anthesis decreased the percentage of fruit set per plant, but did not clarify the thermosensitive period. The same level of stress did not significantly reduce fruit set when applied immediately after anthesis. For plants initially grown at 32/26 degrees C, fruit set was completely prevented unless a relief period of more than 5 d was provided before anthesis. The same level of stress relief for 3-24 h after anthesis also increased fruit set. Plants were most sensitive to 32/26 degrees C temperatures 7-15 d before anthesis. Microscopic investigation of anthers in plants grown continuously at high temperature indicated disruption of development in the pollen, endothecium, epidermis, and stomium. This disruption was reduced, but still observable in plants relieved from high temperature for 10 d before anthesis.}, number={371}, journal={JOURNAL OF EXPERIMENTAL BOTANY}, author={Sato, S and Peet, MM and Thomas, JF}, year={2002}, month={May}, pages={1187–1195} } @article{sato_peet_gardner_2001, title={Formation of parthenocarpic fruit, undeveloped flowers and aborted flowers in tomato under moderately elevated temperatures}, volume={90}, ISSN={["0304-4238"]}, DOI={10.1016/S0304-4238(00)00262-4}, abstractNote={Incidence of parthenocarpic fruit, undeveloped flowers and flower abortion in tomato plants (Lycopersicon esculentum Mill.) were compared under optimal temperature (OT, 28/22°C day/night) and chronic, mild high temperature conditions (HT, 32/26°C). Seeded fruits were found only under OT conditions, where 37±9% of all flowers developed into seeded fruit. However, flower aborted was also higher under OT, with an additional 24±7% of flowers aborted under optimal temperature conditions, compared to only 4±1% of flowers aborted under HT conditions. Under HT, most flowers (53±8%) developed into parthenocarpic fruit, and the remainder (43±7%) stayed on the plant as undeveloped flowers. A slow transition of undeveloped flowers to parthenocarpic fruit was also observed under HT. Factors determining whether flowers abort, develop parthenocarpically, remain on the plant without developing further, or develop into seeded fruit were discussed in relation to carbohydrate availability and the presence of seeded fruit on the vine.}, number={3-4}, journal={SCIENTIA HORTICULTURAE}, author={Sato, S and Peet, MM and Gardner, RG}, year={2001}, month={Nov}, pages={243–254} } @article{sato_peet_thomas_2000, title={Physiological factors limit fruit set of tomato (Lycopersicon esculentum Mill.) under chronic, mild heat stress}, volume={23}, ISSN={["1365-3040"]}, DOI={10.1046/j.1365-3040.2000.00589.x}, abstractNote={ABSTRACTThe effects of chronic, mild heat stress on fruit set, fruit production, release of pollen grains, photosynthesis, night respiration and anther dehiscence were examined in tomatoes (Lycopersicon esculentum Mill.) differing in high‐temperature sensitivity. Plants were grown under three temperature regimes: (1) 28/22 or 26/22 °C (optimal temperature); (2) 32/26 °C (high temperature); and (3) 32/26 °C day/night temperatures relieved at 28/22 °C for 10 d before anthesis, then returned to 32/26 °C (relieving treatment). FLA 7156 was the only cultivar with fruit set at 32/26 °C. All five cultivars, however, had fruit set under the relieving treatment (RT). The longer the relief, the higher the percentage of fruit set. Longer periods of relief also increased the number of pollen grains released, and linear regression analysis showed a significant relationship between the number of pollen grains released and the percentage of fruit set. Germination of pollen grains was also lowered in high‐temperature‐grown plants. The number of pollen grains produced, photosynthesis and night respiration did not limit fruit set under chronic, mild heat stress, however. This suggested that cultivar differences in pollen release and germination under heat stress are the most important factors determining their ability to set fruit.}, number={7}, journal={PLANT CELL AND ENVIRONMENT}, author={Sato, S and Peet, MM and Thomas, JF}, year={2000}, month={Jul}, pages={719–726} }