Contrasting stomatal regulation and leaf ABA concentrations in wheat genotypes when split root systems were exposed to terminal drought

Saradadevi, Renu; Bramley, Helen; Siddique, Kadambot H. M.; Edwards, Everard; Palta, Jairo A.

doi:10.1016/j.fcr.2014.02.004

Cited by 44 publications

(30 citation statements)

References 63 publications

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“…), but is known to close its stomata in response to soil drying while leaf water potential also declines (Saradadevi et al. , ), so carbon assimilation and hence, growth would be reduced, supporting the observation in this study. ‘Janz’ is a widely adapted cultivar, which may be related to its conservative behaviour as observed here in terms of shoot biomass under WW conditions.…”

Section: Discussionsupporting

confidence: 85%

“…All of the cultivars in this study, except 'Kukri', are considered drought tolerant (see references in Table 1) and were bred in different environments. For example, 'Drysdale' was developed for high transpiration efficiency through selection based on carbon isotope discrimination (Condon et al 2004), but is known to close its stomata in response to soil drying while leaf water potential also declines (Saradadevi et al 2014(Saradadevi et al , 2015, so carbon assimilation and hence, growth would be reduced, supporting the observation in this study. 'Janz' is a widely adapted cultivar, which may be related to its conservative behaviour as observed here in terms of shoot biomass under WW conditions.…”

Section: Discussionsupporting

confidence: 75%

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Osmotic potential at full turgor: an easily measurable trait to help breeders select for drought tolerance in wheat

2016

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This study investigated the relationship between osmotic potential at full hydration (p 100 ) and turgor loss point (Ψ TLP ) in wheat (Triticum aestivum) to determine the potential of using p 100 to predict Ψ TLP under well-watered (WW) and drought (WS) conditions. Two methods for determining p 100 were tested: pressure-volume (PV) analysis and freezing point osmometry. The study also measured p 100 in a range of 38 field-grown wheat cultivars to determine whether there is genetic variation in p 100 under field conditions. p 100 correlated with Ψ TLP using both methods under both water treatments, particularly WS. Genetic variation of p 100 in the field, under rainfed conditions, was greater than controlled conditions and ranged from À0.94 to À1.95 MPa. Overall, the evidence supports development of p 100 as a novel tool for plant breeders to screen large populations of wheat and identify genotypes with lower Ψ TLP , an integrative trait that is related to drought tolerance.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionsupporting

confidence: 75%

Osmotic potential at full turgor: an easily measurable trait to help breeders select for drought tolerance in wheat

2016

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“…Reference CO 2 concentration was set to 380 mol mol −1 and light intensity PAR 1000 mol m −2 s −1 , which is the average saturation intensity for photosynthesis in wheat (Saradadevi et al, 2014). A leaf chamber equipped with a red/blue LED light source was used.…”

Section: Gas Exchange Measurementsmentioning

confidence: 99%

Film antitranspirants increase yield in drought stressed wheat plants by maintaining high grain number

Abdullah

Aziz

Siddique

et al. 2015

Agricultural Water Management

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“…In addition, some researches on cereal crops showed that drought stress conditions resulted in decreased growth rate and weight of grain on yield. Those results were caused by a decrease of precipitation and increase in temperature (Saradadevi, Bramley, Siddique, Edwards, & Palta, 2014). This makes the water an important factor in determining the success of the cultivation of wheat.…”

Section: Introductionmentioning

confidence: 99%

PROLINE AND SPECIFIC ROOT LENGHT AS RESPONSE TO DROUGHT OF WHEAT LINES (Triticum aestivum L.)

Barunawati

Maghfoer²,

Kendarini³

et al. 2016

Agrivita.J.Agr.Sci

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The national wheat imported reaches approx.-imately 7 million ton per year, recently. The wheat plantation in Indonesia is strongly affected by the high temperature which triggers the stunned roots. Thus the plan wheat growth and production reduced. The experiment to investigate of selectedlocal wheat lines which were already established in Indonesia and resistant to drought effect. The level of drought influence on several growth parameters of vegetative plant and thus affected to seeds production as well as on total yield. The results show that the introduced-variety of wheat line, SO3 shows the significant tolerant to drought and able to maintain the SRL (specific root length) and increase the proline contents to with stand the drought condition compare to other lines (M7 and M8). The proline as amino acid climbed extremely effected by drought, in contrast the root growth in particular their length reduced. Those plant conditions influence the plant vegetative growth and generative phases, especially for seed production. Additionally, the M8 and SO3 selected-line presents the stability on yield production compare to other varieties, since it able maintain the content of proline and ratio of root length. Therefore, those selected lines are appropriate to grow in Indonesia which produces at approximately 3.5 t ha -1 .

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Contrasting stomatal regulation and leaf ABA concentrations in wheat genotypes when split root systems were exposed to terminal drought

Cited by 44 publications

References 63 publications

Osmotic potential at full turgor: an easily measurable trait to help breeders select for drought tolerance in wheat

Osmotic potential at full turgor: an easily measurable trait to help breeders select for drought tolerance in wheat

Film antitranspirants increase yield in drought stressed wheat plants by maintaining high grain number

PROLINE AND SPECIFIC ROOT LENGHT AS RESPONSE TO DROUGHT OF WHEAT LINES (Triticum aestivum L.)

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