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Kemin Su, Justin Q. Moss, Guolong Zhang, Dennis L. Martin, and Yanqi Wu

Drought is a major limiting factor for sustainable turfgrass management in the United States. Climate prediction models indicate that the world may experience increased global temperatures, decreased precipitation, and an increase in the occurrence

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David Jespersen and Brian Schwartz

st. augustinegrass ( Stenotaphrum secundatum ), zoysiagrasses are considered to have moderate to low levels of drought tolerance ( Carrow, 1996b ; Qian and Engelke, 1999 ; Wherley et al., 2014 ). As communities look to reduce irrigation inputs for

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Waltram Ravelombola, Ainong Shi, Jun Qin, Yuejin Weng, Gehendra Bhattarai, Bazgha Zia, Wei Zhou, and Beiquan Mou

Drought stress has been constraining agricultural production in various ways, which increasingly threatens food availability globally. Drought has been described as the effects of a sustained lack of soil moisture required for plants to properly

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Derald Harp, Gaye Hammond, David C. Zlesak, Greg Church, Mark Chamblee, and Steve George

performance, pest resistance, disease resistance, and drought tolerance that possessed desirable ornamental characteristics in north central Texas [U.S. Department of Agriculture (USDA) Plant Hardiness Zone 8a] using low-input Earth-Kind ® rose trialing

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Avinoam Nerd, Avraham Karady, and Yosef Mizrahi

Field experiments were conducted to examine the effect of fertilization and short periods of drought on the out-of-season winter crop in prickly pear [Opuntia ficus-indica (L.) Mill.]. In addition, the winter and summer crops were compared regarding floral bud production and fruit characteristics. Under both continuous fertigation (N, P, K applied with the irrigation water) and continuous irrigation, the number of floral buds per plant was much lower in the winter than in the summer crop. Fertilization increased production of floral buds in both crops, but to a greater extent in the winter crop. The increase in floral bud production in fertilized plants was associated with an increase in NO3-N content in the cladodes. Suspension of fertigation for 4 or 8 weeks immediately after the summer harvest decreased cladode water content and delayed and reduced floral bud emergence as compared with continuous fertigation (control) or late drought (4 or 8 weeks) applied 4 weeks after the summer harvest. The plants subjected to early drought suffered from high mortality of floral buds. The fruits of the winter crop ripened in early spring, following the pattern of floral bud emergence the previous autumn. Mean fresh weight and peel: pulp ratio (w/w) were higher in fruits that ripened in the spring (winter crop) than in fruits that ripened in the summer.

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Grady L. Miller

The effects of several soil amendments, following a single filling of core aerification holes, on growth and transpiration of `Tifdwarf' bermudagrass [Cynodon dactylon (L.) Pers. × C. transvaalensis Burtt Davy] were examined during drought stress. Soil amendments had variable effects on turf quality. In general, turf grown in ZeoPro®- and Profile®-amended sand had the highest quality. Data indicated that the evaluated soil amendments have the potential to influence soil water content, ultimately influencing transpirational response to drought stress. Amended sand contained 1% to 16% more transpirable water compared with non-amended sand. Turfgrass grown in Axis®- and Isolite®-amended sand required 0.4 to 1.4 days longer to reach the endpoint (transpiration rate of drought stressed plants <12% of well-watered plants) during a period of rapid water depletion. Data from this study suggest that the total volume these amendments occupied in the root zone, following a single filling of core aerification holes in sand, may positively influence soil moisture status, resulting in an increase in drought avoidance.

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Qi Chai, Fang Jin, Emily Merewitz, and Bingru Huang

Water availability for agricultural or urban irrigation is becoming increasingly limited, which is a common threat for plant growth in many areas. The mechanisms of drought tolerance in terms of plant productivity under moderate drought have been

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Jianping P. Wang, Suleiman S. Bughrara, and C. Jerry Nelson

Over one-half of the world's land surface is exposed to periodic drought ( Boyer, 1982 ) causing it to be a major limiting factor for the growth of cool season grasses in transitional and warm climatic regions. In urban environments, drought

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Kevin Fort, Joaquin Fraga, Daniele Grossi, and M. Andrew Walker

). Rootstocks have since been developed for other traits that include nematode resistance, lime tolerance, salt tolerance, tolerance of saturated soil, and influence on scion vigor and fruit maturity ( Galet, 1998 ; Pongrácz, 1983 ). Drought tolerance can also

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Randy S. Nelson, Esther E. McGinnis, and Aaron L.M. Daigh

where the rain garden does not drain as designed, ponded water may remain for several days. Rain garden plants depend on seasonal precipitation and will be subjected to cyclical flooding and drought. The U.S. EPA (1999) recommends using native plants