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Suping Zhou, Roger Sauve, Tara Fish, and Theodore W. Thannhauser

processes ( Fonseca et al., 2007 ). In addition to being toxic, NaCl can cause osmotic stress and deficiency of essential nutrient elements ( Zhu 2003 ). The cultivated tomato is classified as a moderately salt-sensitive plant ( Katerji et al., 2003

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

and create further improvements in cowpea cultivars. However, little has been accomplished regarding the study of the responses of cowpea accessions to abiotic stresses such as salt tolerance, which constrains breeders from using the rich genetic

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Qi Chai, Xinqing Shao, and Jianquan Zhang

Salinity has been recognized as a major factor limiting crop productivity in many areas of the arid regions of the world where soil salt content is naturally high and precipitation is insufficient for leaching ( Chinnusamy et al., 2005 ; Flowers

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Zhao Xiang, Zhu Huisen, Gao Yang, and Li Deying

Turfgrass experiences salinity stress either because of salt-affected soils or because of salts from irrigation, especially from recycled water ( Leskys et al., 1999 ). During the winter in cold regions, salts are often applied on roads to melt ice

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Wayne Loescher, Zhulong Chan, and Rebecca Grumet

BACKGROUND AND IMPORTANCE OF THE SALINITY PROBLEM Although estimates vary widely ( Rozema and Flowers, 2008 ), soil salinization is a major factor reducing crop yields in the United States and globally. More than 800 million ha of land is salt

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Asmita Paudel, Ji Jhong Chen, Youping Sun, Yuxiang Wang, and Richard Anderson

and Cabrera, 2010 ). Therefore, selection and identification of salt-tolerant ornamental plants are crucial for nursery production and landscape use. Plants selected from the Earth-Kind ® and Texas Superstar ® programs have been studied for salinity

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Xiujie Yin, Chao Zhang, Xin Song, and Yiwei Jiang

absorption of K + , NO 3 − , and phosphate (Pi) ( Shokri and Maadi, 2009 ). However, alterations of Na + and K + along with other nutrients such as N and P in relation to salinity tolerance are not well understood in turfgrass species. In salt

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Rashad M. Balal, Muhammad M. Khan, Muhammad A. Shahid, Neil S. Mattson, Tahira Abbas, Muhammad Ashfaq, Franscisco Garcia-Sanchez, Usman Ghazanfer, Vicente Gimeno, and Zafar Iqbal

can cause various disorders in citrus plants ( Romero-Aranda et al., 1998 ). Sodium chloride is reported to be a major source of ions in salt solutions compared with Na 2 SO 4 because NaCl liberates ≈60% more ions than Na 2 SO 4 does ( Rachmilevitch

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Yingmei Ma and Emily Merewitz

Salt stress is a major issue for turfgrass management around the world. Use of reclaimed, nonpotable water that may contain high levels of salts is becoming a common management practice ( Duncan et al., 2008 ). Additionally, numerous turf areas are

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David B. Headley, Nina Bassuk, and Robert G. Mower

Two experiments were conducted to determine the relative resistance of 33 selected cultivars of English ivy (Hedera helix L.) to soil- and shoot-applied NaCl. In the soil-applied NaCl experiment, ramets of the 33 cultivars were irrigated with a fertilizer + 0.25-N NaCl solution for 55 days. `Harrison', `Hibernica', `Thorndale', Wilson', and Woerner' exhibited the least amount of visible shoot damage. Dry weights of all cultivars were much lower in the salt treatment. In the shoot-applied NaCl experiment, plants were sprayed daily with a 0.25-n NaCl solution for 48 days. The young leaves and stems of all cultivars were severely injured by the salt spray, while the mature leaves and stems and the dormant buds were only slightly injured. Reduction in dry weight varied between cultivars. Two subsequent experiments focused on resistance to soil-applied NaCl. Ramets of the NaCl-resistant `Harrison', `Hibernica', and `Thorndale', and the NaCl-sensitive `Baltica', `Cathedral Wall', and Wingertsberg' were irrigated with a fertilizer + 0.25-N NaCl solution for 48 days. Whole-plant Cl content for all six cultivars was in the range of 30,000 ppm. Ramets of `Thorndale' and `Cathedral Wall' were irrigated with a fertilizer + 0.25-N NaCl solution for 30 days with replicate plants harvested at S-day intervals. `Cathedral Wall' accumulated more Cl at a faster rate than `Thorndale'. Mean whole-plant Cl concentration peaked at 97,000 ppm for `Cathedral Wall' and 40,000 ppm for `Thorndale'. Salt resistance may be partly based on slower uptake of Cl.