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Cecil Pounders, Tim Rinehart, and Hamidou Sakhanokho

855 856 Pooler, M.R. 2006b Crape myrtle: Lagerstroemia indica 428 449 Anderson N.O. Flower breeding and genetics: Issues, challenges, and opportunities for the 21st century Vol. 2 Springer New York

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Xiaoming Wang, Jianjun Chen, Huijie Zeng, Zhongquan Qiao, Yongxin Li, Neng Cai, and Xiangying Wang

Lagerstroemia indica L., commonly referred to as crape myrtle or crepe flower, is an upright, wide-spreading, deciduous shrub or small tree in the loosestrife family Lythraceae. It is native to the Himalayas through southern China, Southeast Asia

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Peter C. Andersen, Brent V. Brodbeck, and Russell F. Mizell 111

The effects and interactions of water stress and nutrient solution on water relations and concentrations of amino acids, organic acids and sugars in xylem fluid of `Methley' plum (Prunus salicina Lindl.) and `Carolina Beauty' crape myrtle (Lagerstroemia indica L.) during midday were determined. Container-grown plants were irrigated with water or nutrient solution (i.e., osmolarity = 138 mm) for 15 days, then irrigation was either continued or terminated for the next 5 days. The experiments were analyzed as factorial designs for each species separately, with the nutrient solution and irrigation status the last 5 days as the main factors. Xylem fluid tension increased ≈ 2- to 3-fold and leaf conductance to water vapor and transpiration were reduced ≈ 10-fold by withholding irrigation for both species; plant water relations of L. indica were also influenced by the nutrient solution. For both species, the osmolarity of xylem fluid was not altered by withholding irrigation. The predominant organic compounds quantified in both species were amides (i.e., glutamine and asparagine), arginine, and citric and malic acids. Sugars represented a small proportion (i.e., generally ≤ 1%) of total osmolarity. Irrigation altered the chemical profile of amino acids and organic acids to a greater degree than the nutrient solution. Water stress induced a 3-fold increase in total organic acids in xylem fluid of both species. The osmolarity and the concentration of most organic compounds in xylem fluid of P. salicina were not significantly affected by the nutrient solution. Arginine increased markedly in concentration by withholding irrigation or with the application of nutrient solution for L. indica. The concentration of most organic compounds did not vary greatly in response to variations in soil water or nutrient status. In conclusion, soil water-or nutrient-mediated changes in plant water relations exceeded changes in xylem fluid chemistry.

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Wei Zhou, Xiaoming Wang, Jianhua Chen, Liangming Chen, Zhongquan Qiao, and Huijie Zeng

endosperm ( Akhalkatsi et al., 1999 ; Casper and Wiens, 1981 ; Gao et al., 2017 ). Lagerstroemia indica is native to Asia and is a deciduous shrub or small tree belonging to the family Lythraceae. It has a long history of cultivation and is an important

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Cecil T. Pounders, Eugene K. Blythe, Donna C. Fare, Gary W. Knox, and Jeff L. Sibley

Crapemyrtles ( Lagerstroemia indica , L. fauriei , and L. indica × L. fauriei hybrids) are popular flowering shrubs and small trees in US landscapes in regions with hot summers in USDA plant hardiness zones 6 to 10 and heat zones 7 to 10

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Jeb S. Fields, Kristopher S. Criscione, and Ashley Edwards

a line was drawn at exactly half the height of the container. When filled, each container was dropped once from ≈4 inches to settle the substrate. On 23 June 2020, 5-cm ‘Natchez’ crepe myrtle ( Lagerstroemia indica ) liners were transplanted into

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Derald Harp, Kevin Chretien, Mariah Brown, Curtis Jones, and Jose Lopez-Serrano

Crepe myrtle ( Lagerstroemia indica ) is an important shrub and small tree in Texas landscapes and across the southern United States. In 2014, wholesale sales of crepe myrtle exceeded $65 million, and there are a wide variety of cultivars, differing

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Shu’an Wang, Rutong Yang, Peng Wang, Qing Wang, Linfang Li, Ya Li, and Zengfang Yin

Crape myrtle ( Lagerstroemia indica ), a member of the family Lythraceae, originated in China and historical records of its cultivation in the country date back to 1700 years ago, well before its cultivation in other areas in the world ( Zhang, 1991

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Isha Poudel and Anthony L. Witcher

). Rooting Two node terminal and subterminal stem cuttings of three plant species [‘Nanho Blue’ butterfly bush ( Buddleja davidii ), ‘Catawba’ crape myrtle ( Lagerstroemia indica ), and ‘Phantom’ hydrangea ( Hydrangea paniculata )] were collected 19 May

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April D. Edwards, Steven E. Newman, Frank B. Matta, and Adolph J. Laiche

During recent freezes in the mid-south, crape myrtles have suffered severe freeze damage. Some increased levels of cold hardiness have been observed in the National Arboretum crape myrtle releases, but the degree of tolerance has not been documented. The relative cold hardiness of five hybrid crape myrtle cultivars `Muskogee', `Natchez', `Osage', `Tuskegee' and `Yuma' was determined using differential thermal analysis. Stem samples were collected from established trees at two locations, Poplarville, Zone 8 and Starkville, Zone 7 once per month from October through April. Freezing point suppression was determined from five samples from each cultivar and location. Observed exotherms ranged from -7C to -13C.