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Thomas G. Beckman and William R. Okie

Differences in chilling and post-rest heat requirements of various stonefruits were investigated through the use of cuttings collected from field grown trees. Materials studied included P. angustifolia Marsh, P. besseyi Bailey, P. maritima Marsh, P. persica (L.) Batsch (`Agua 6-4', `Flordaking', `Pi Tao', `Redhaven', `Redskin', and `Ta Tao'), P. umbellata Ell. and a Japanese type plum (`Byrongold'). Cuttings were collected after natural leaf fall and shortly after the onset of of chill hour accumulation. Cuttings were stored at 4°C. Groups of cuttings were removed from storage after various amounts of chilling and allowed to develop at 16, 21 or 27°C. Cuttings were observed for both vegetative and flower bud break. Magnitude of differences in chilling and post-rest heat requirements and their implications in the breeding of peaches for low and moderate chill areas will be discussed.

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Dario J. Chavez, Thomas G. Beckman, and José X. Chaparro

,” and “Beach Clade.” The American Clade included P. americana var. americana , P. americana var. lanata , P. mexicana , Prunus rivularis , P. hortulana , P. umbellata var. injucunda ; the Chickasaw Clade included P. angustifolia , P

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John M. Ruter

selections vary in their susceptibility ( Hagan et al., 2001 ; Ruter, 2004 ). Rhaphiolepis umbellata (Thunb.) Makino is described as growing in thickets near the seashore in the Japanese provinces of Honshu, Kyushu, and Shikoku ( Ohwi, 1984 ). This species

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Marija Perić, Slavica Dmitrović, Suzana Živković, Biljana Filipović, Marijana Skorić, Ana Simonović, and Slađana Todorović

Rindera umbellata (Waldst. & Kit.) Bunge, also known as Mattia umbellata (Waldst. & Kit.) Schult. or Cynoglossum umbellatum (Waldst. & Kit.), belongs to the Boraginaceae family and is a biennial to perennial herbaceous plant. Numerous hairy

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Thomas G. Beckman, Jose X. Chaparro, and Wayne B. Sherman

.S. Department of Agriculture, Agricultural Research Service (USDA-ARS) at Byron, GA, from a cross made in 1994 between ‘Edible Sloe’, an apparent natural plum hybrid thought to include Prunus umbellata Elliot, and an advanced red-leafed peach rootstock

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Kendra Baumgartner, Phillip Fujiyoshi, Craig Ledbetter, Roger Duncan, and Daniel A. Kluepfel

. Similar results of lower mortality among rootstocks with plum parentage including Myrobalan ( P. cerasifera ), P. munsoniana , or both were found in a field trial in California ( Thomas et al., 1948 ). Interestingly, in the French study, hybrids of peach

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Harbans L. Bhardwaj and Anwar A. Hamama

components during germination of sunflower seeds, Helianthus annuus Plant Foods Hum. Nutr. 51 71 77 Bau, H.M. Villaume, C. Nicolas, J.P. Mejean, L. 1997 Effect of germination on chemical composition

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Andrew J. Hephner, Tyler Cooper, Leslie L. Beck, and Gerald M. Henry

( Butler et al., 2005 ; Davis et al., 1997 ; Johnson, 1987 ; McElroy et al., 2005 ). Busey (2009) reported 77% control of dollarweed ( Hydrocotyle umbellata L.) 10 WAIT in St. Augustinegrass [ Stenotaphrum secundatum S. (Walt.) Kuntze] with

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Kai Jia, Cunyao Yan, Huizhuan Yan, and Jie Gao

turnip seedlings. Bars with different letters show significant differences among five salt stress treatments at P < 0.05. The MDA content of ‘Wenzhoupancai’ and ‘Qiamagu’ reached its highest when the NaCl concentration was 150 mmol/L; it increased by

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S. Christopher Marble

study by Busey and Johnston (2006) H. umbellata L. (dollarweed) increased in cover and biomass with increasing irrigation and fertilization in a Stenotaphrum secundatum (Walt.) Kuntze (st. augustine grass) lawn. In severely wilted lawns, St