Evaluating Genetic Diversity of Chilling Stress in Cotton Genotypes

Sofalian, Omid; Azimy, Somayyeh; Jahanbakhsh, Sodabeh; Khomari, Saeid; Dezhsetan, Sara

doi:10.2478/v10129-011-0082-2

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…However it is difficult to evaluate the effect of an hour of a given type of chilling stress on agronomic factors of importance in cotton. Many chilling-stress studies have used exposures to low temperatures over the course of hours (Payton et al, 2001) to multiple days (Bange and Milroy, 2004;Bradow, 1991;Christiansen, 1967;Christiansen and Thomas, 1964;Rikin et al, 1979;Sofalian, 2013. Interpreting these controlled studies in terms of field performance of cotton under chilling is problematic at best.…”

Section: Chilling Stress In Production Environments-a Texas High Plai...mentioning

confidence: 99%

Effects of Chilling Temperatures on Photosynthesis

Holaday¹,

Mahan²,

Payton³

2016

JCS

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Environmental stress is an inescapable reality for most plants growing in natural settings. Conditions of sub- or supraoptimal temperatures, water deficit, water logging, salinity, and pollution can have dramatic effects on plant growth and development, and in agricultural settings, yield. In cotton, yield is a product of the number of mature bolls produced in a given area and the amount of cotton produced by each boll. Though cotton is among the most stress-tolerant crop plants, suboptimal environmental conditions limit the yields and quality of fiber and seed. The most significant effects of abiotic stress related to yield are on fertilization, boll retention, and boll filling. Maintenance of photoassimilate supply during fruit development is critical in achieving high yields in cotton. Because photosynthesis is the driving force behind plant productivity, although not the only factor that determines yield, plants have developed numerous mechanisms that serve to protect the photosynthetic apparatus during stressful conditions. Cotton is produced across a wide range of environments and management conditions, from hot and humid subtropical to semiarid environments. Although production is limited by varying environmental conditions across these environments, it is clear that the physiological resilience to abiotic stress is considerable. We present a review of our understanding of low-temperature limitations to photosynthesis and the impact on productivity. Additionally, we use the High Plains region of Texas as a case study to highlight potential key developmental aspects of low-temperature stress on yield.

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