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Yuan Li, Joseph Heckman, Andrew Wyenandt, Neil Mattson, Edward Durner, and A.J. Both

availability of Si usually does not affect plants when grown under optimum conditions. However, when plants are under biotic or abiotic stress, Si can strengthen the plant’s defense system, thereby increasing crop productivity ( Datnoff, 2014 ). The effects of

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Ting Min, Jun Xie, Yang Yi, Wenfu Hou, Youwei Ai, and Hongxun Wang

, and is involved in plant biological and abiotic stress responses ( Licausi et al., 2013 ; Min et al., 2012 ; Müller and Munné-Bosch, 2015 ; Phukan et al., 2017 ). It has been reported that CsAP2/ERF (APETALA2/ERF) may play important roles in the

Open access

R. Karina Gallardo, Qi Zhang, Michael Dossett, James J. Polashock, Cesar Rodriguez-Saona, Nicholi Vorsa, Patrick P. Edger, Hamid Ashrafi, Ebrahiem Babiker, Chad E. Finn, and Massimo Iorizzo

abiotic stress tolerance traits and other variables based on a blueberry industry survey conducted in 2016 and 2017. Table 6. Estimated ordered probit model coefficients of other blueberry plant traits and other variables based on a blueberry industry

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Shuai-Ping Gao, Kang-Di Hu, Lan-Ying Hu, Yan-Hong Li, Yi Han, Hui-Li Wang, Kai Lv, Yong-Sheng Liu, and Hua Zhang

regulating seed germination, root organogenesis, abiotic stress tolerance, photosynthesis, and guard cell movement, implying that H 2 S acts as an important gaseous regulator ( Chen et al., 2011 ; García-Mata and Lamattina, 2010 ; Hancock et al., 2011

Open access

Kelly Nascimento-Silva, Luis Roca-Castillo, María Benlloch-González, and Ricardo Fernández-Escobar

abiotic stresses such as salinity, metal toxicity, drought, radiation damage, nutrient imbalance, high temperature, and freezing ( Guntzer et al., 2012 ). A remarkable effect of Si is the reduction in the incidence of diseases in plants ( Debona et al

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Katy M. Rainey and Phillip D. Griffiths

The genetic basis for heat tolerance during reproductive development in snap bean was investigated in a heat-tolerant × heat-sensitive common bean cross. Parental, F1, F2, and backcross generations of a cross between the heat-tolerant snap bean breeding line `Cornell 503' and the heat-sensitive wax bean cultivar Majestic were grown in a high-temperature controlled environment (32 °C day/28 °C night), initiated prior to anthesis and continued through plant senescence. During flowering, individual plants of all generations were visually rated and scored for extent of abscission of reproductive organs. The distribution of abscission scores in segregating generations (F2 and backcrosses) indicated that a high rate of abscission in response to heat stress was controlled by a single recessive gene from `Majestic'. Abscission of reproductive organs is the primary determinant of yield under heat stress in many annual grain legumes; this is the first known report of single gene control of this reaction in common bean or similar legumes. Generation means analysis indicated that genetic variation among generations for pod number under heat stress was best explained by a six-parameter model that includes nonallelic interaction terms, perhaps the result of the hypothetical abscission gene interacting with other genes for pod number in the populations. A simple additive/dominance model accounted for genetic variance for seeds per pod. Dominance [h] and epistatic dominance × dominance [l] genetic parameters for yield components under high temperatures were the largest in magnitude. Results suggest `Cornell 503' can improve heat tolerance in sensitive cultivars, and heat tolerance in common bean may be influenced by major genes.

Open access

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

accounts for 32.07% of cultivated land in Xinjiang ( Zhang et al., 2017 ). Salt stress is one of the main abiotic stresses; it causes water deficit, ion toxicity, metabolic imbalance, and limits plant growth and crop yield ( Park et al., 2016 ; Ryu and Cho

Open access

Cristhian Camilo Chávez-Arias, Sandra Gómez-Caro, and Hermann Restrepo-Díaz

because of factors such as vascular wilt (Foph), abiotic stresses (waterlogging), and/or the interaction between these factors ( Aldana et al., 2014 ; Moreno-Velandia et al., 2019 ; Villarreal-Navarrete et al., 2017 ). Vascular wilt is the most limiting

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Jingjin Yu, Mengxian Liu, Zhimin Yang, and Bingru Huang

Drought stress is one of the most important abiotic stresses limiting plant growth in many arid areas. Drought tolerance and recuperative ability differ inter- and intraspecifically for turfgrass species ( Carrow, 1996 ; Du et al., 2008

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Judith Pozo, Miguel Urrestarazu, Isidro Morales, Jessica Sánchez, Milagrosa Santos, Fernando Dianez, and Juan E. Álvaro

beneficial effects of Si absorption are different between species and, in general, can only be observed under conditions of biotic or abiotic stress, it is difficult to develop an integral understanding of the biological function of Si and its role in the