Canopy temperature depression at grain filling correlates to winter wheat yield in the U.S. Southern High Plains

Thapa, Sushil; Jessup, Kirk E.; Pradhan, Gautam P.; Rudd, Jackie C.; Liu, Shuyu; Mahan, J. R.; Devkota, Ravindra N.; Baker, John O.; Xue, Qingwu

doi:10.1016/j.fcr.2017.12.005

Cited by 74 publications

(59 citation statements)

References 38 publications

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“…CTD has been associated with yield increases in wheat (Triticum aestivum L.) cultivars (Fischer et al, 1998). Several researchers have reported positive correlations of CTD with grain yields of wheat (Blum et al, 1989;Amani et al, 1996;Reynolds et al, 1998;Ayeneh et al, 2002;Balota et al, 2007;Thapa et al, 2018), and their results corroborate the results for sugarcane in the present study. F v /F m had the highest correlation with the grain yield of wheat under drought stress (Paknejad et al, 2007), and the same trend was observed in this study under limited irrigation.…”

Section: Discussionsupporting

confidence: 90%

Physiological Efficiency of Sugarcane Clones under Water-Limited Conditions

kumar¹,

Vasantha²,

Tayade³

et al. 2020

Transactions of the ASABE

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Collection HIGHLIGHTS `Significant reductions in canopy temperature depression (CTD), chlorophyll fluorescence (F v /F m ), SPAD index, and leaf rolling index were observed under limited irrigation during the grand growth stage of sugarcane.  This study highlights the significance of CTD and F v /F m as useful physiological tools for selecting sugarcane clones suitable for production under water-limited conditions.  Clones Co 10026, Co 13006, Co 85019, Co 62175, Co 86010, and Co 1148 performed better under limited irrigation, and these clones can reduce the amount of irrigation water required for sugarcane production, ensuring water security.ABSTRACT. Sugarcane is one the most important commercial crops in India and globally. The annual water requirement for sugarcane ranges from about 1000 to 2900 mm, and this variation mainly depends on the agro-ecological conditions, cultivation practices, and crop cycle. In a changing climate, the delay or failure of monsoons will have a direct effect on the water available for irrigation in India. Given these constraints, sustaining sugarcane production is challenging. The ICAR-Sugarcane Breeding Institute (ICAR-SBI) in Coimbatore, India, has developed sugarcane genotypes that are resilient to drought stress. To study the role of physiological traits in identifying sugarcane varieties suitable for water-limited conditions, an experiment was conducted at ICAR-SBI with sugarcane clones in field conditions using irrigation at 100% cumulative pan evaporation (I 0 ) and with 50% reductions in the volume and frequency of irrigation (I 2 ). Physiological traits, including canopy temperature depression (CTD), chlorophyll fluorescence (F v /F m ), soil plant analysis development (SPAD) index, leaf rolling index (LRI), and cane yield, were recorded for sugarcane clones grown under I 0 and I 2 . Significant reductions of 85. 9%, 15.4%, 4.9%, 44.9%, and 56.0%, respectively, in CTD, F v /F m , SPAD index, LRI, and cane yield were found for water-limited conditions (I 2 ) compared to I 0 . F v /F m showed a decreasing trend in I 2 compared to I 0 and also showed a significant positive correlation (r = 0.43) with cane yield. CTD varied significantly between the two treatments and also showed a significant positive correlation with cane yield (r = 0.45). Both F v /F m and CTD are adaptive traits for waterlimited conditions and are useful for screening sugarcane clones suitable for water-limited conditions. Clones Co 10026, Co 13006, Co 85019, Co 62175, and Co 86010 had superior cane yields under water-limited conditions (I 2 ) and better physiological traits. Water deficit is one of the most critical abiotic stresses that affect sugarcane productivity. By growing clones that are water use efficient (Co 10026, Co 13006, Co 85019, Co 62175, and Co 86010), the irrigation water requirement can be reduced for sugarcane production in India. In addition, new sugarcane clones can be developed for waterlimited conditions by using the identified clones in breeding programs for water use efficienc...

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Section: Discussionsupporting

confidence: 90%

Physiological Efficiency of Sugarcane Clones under Water-Limited Conditions

kumar¹,

Vasantha²,

Tayade³

et al. 2020

Transactions of the ASABE

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“…Indeed, rubber can change the hydrological dynamics and can produce a drier, warmer climate (Wu et al 2001). When the soil moisture is not adequate enough to meet the evaporative demands under high solar radiation and drought conditions, the stomatal conductance will decrease and Tc will increase (Thapa et al 2018). At both sites, the Tc values increased and the CTD values decreased during our study period.…”

Section: Discussionmentioning

confidence: 85%

“…In fact, CTD has been found to be particularly useful for assessing plant water status because it represents an overall, integrated physiological response to drought and high temperature (Amani et al 1996). CTD also correlates with physiological traits such as stomatal conductance (Amani et al 1996, Rebetzke et al 2013, leaf chlorophyll (Pradhan et al 2012), leaf water potential (Cohen et al 2005) and grain yield (Balota et al 2007, Kottmann et al 2013, Thapa et al 2018, both under water-stressed conditions (Kumar et al 2017) and heat-and drought-stressed conditions (Kottmann et al 2013, Pradhan et al 2014.…”

Section: Introductionmentioning

confidence: 99%

Analysis of canopy temperature depression between tropical rainforest and rubber plantation in Southwest China

Myo¹,

Zhang²,

Qin³

et al. 2019

iForest

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Biogeosciences and Forestry Biogeosciences and Forestry Analysis of canopy temperature depression between tropical rainforest and rubber plantation in Southwest China Sai Tay Zar Myo (1-2-3) , Yiping Zhang (1) , Qing-Hai Song (1) , Yun Deng (4) , Xuehai Fei (1) , Ruiwu Zhou (1-2) , Youxing Lin (1-2) , Liguo Zhou (1-2) , Peng Zhang (1-2) Temperature change is an important environmental variable for global change sciences since it largely affects the physiology of plants in forest ecosystems. Canopy temperature depression (CTD)the result of the deviation of the air temperature (Ta) from the plant canopy surface temperature (Tc)varies depending on the meteorological and environmental conditions of the forests. Here, we evaluated the differences in CTD between a rubber plantation (RP) and a tropical rainforest (TR) in Xishuangbanna, southwestern China across the various time series of the period of 2011 to 2015. The mean maximum CTD values at the TR site and the RP site were 2.4°C and 0.6°C at diurnal level, 1.3°C and-0.5°C at monthly level, 0.6°C and-0.8°C at seasonal level and 5.6°C and 0.2°C at yearly time series level, respectively, while they were only significant (p < 0.01) in the diurnal time series. There was a significant (p < 0.01) negative linear relationship between CTD and global radiation (Q) in both sites at diurnal level and a significant (p < 0.05) negative linear relationship in the RP site at monthly time series level. A significant (p < 0.05) positive linear relationship between CTD and precipitation (P) at the RP site was found at diurnal level, as well as a significant (p < 0.01) positive linear relationship in the TR site at monthly time series level. The variation of CTD was critical for these two sites and largely depended on the amount of global radiation and the precipitation, while it will mainly affect the physiological variables. This study may prove useful for assessing the physiological response in terms of high temperature and drought conditions to regional and global change.

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“…Temperature difference between leaves and air has been considered as a screening criteria in previous studies as well (Reynolds et al, 2009). Canopy temperature depression was selected as a suitable screening tool for selecting drought-tolerance cultivars of wheat, because there was a genotypic variation for it, and also it was directly correlated with grain yield (Thapa et al, 2018). Quantum efficiency of PSII (Fv/Fm) could be considered as a good screening criterion for heat tolerance, because it was positively related to g s , A n , WUE and yield parameters (Figure 2).…”

Section: Discussionmentioning

confidence: 99%

The response of the sugar beet (Beta vulgaris L.ssp. vulgaris var. altissima Döll) genotypes to heat stress in initial growth stage

Malmir

Mohammadian

Sorooshzadeh

et al. 2020

AAS

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The response of the sugar beet (Beta vulgaris L.ssp. vulgaris var. altissima Döll) genotypes to heat stress in initial growth stage Abstract: The continuous trend of global warming and increasing interest toward cultivating sugar beet (Beta vulgaris L. ssp. vulgaris var. altissima Döll) in tropical regions led us to conduct this study to investigate the effect of high temperature on sugar beet at initial growth stages. Thirty one genotypes were incubated at two temperatures (20 °C and 30 °C) in laboratory for germination test. The same genotypes were assessed for physiological parameters at 30 °C in greenhouse, too. Increasing temperature decreased germination indices with a high variability among the genotypes. Seed vigor index and seminal root length were decreased higher than other indices. The genotypes with higher greenness index had higher total dry mass, leaf area and leaf temperature depression (LTD), and those with higher seed vigor index indicated great quantum efficiency of PSII (Fv/Fm) values. 'S1-92521' produced high records in both laboratory and greenhouse experiments. Although 'S1-92521' showed good tolerance in both laboratory and greenhouse experiments, totally, sugar beet genotypes had different performance at two experiments. According to the results, seed vigor index could be used as a screening tool in laboratory, and LTD and Fv/Fm were considered as good criteria for screening heat-tolerant genotypes in greenhouse. Odziv genotipov sladkorne pese (Beta vulgaris L. ssp. vulgaris var. altissima Döll) na vročinski stres v začetnih fazah rastiIzvleček: Naraščajoči trend globalnega segrevanja in vse večji interes za gojenje sladkorne pese (Beta vulgaris L. ssp. vulgaris var. altissima Döll) v tropskih območjih so privedli k izvedbi te raziskave, v kateri je bil preučevan učinek visokih temperature na sladkorno peso v začetnih fazah rasti. 31 genotipov je bilo inkubiranih pri dveh temperaturah (20 °C in 30 °C) v laboratoriju za kalitvene teste. Na istih genotipih so bili v rastlinjaku ocenjeni fiziološki parametri pri temperaturi 30 °C Povišanje temperature je zmanjšalo indekse kalitve z veliko spremenljivostjo med genotipi. Indeks vitalnosti semen in dolžina semenske korenine sta se bolj zmanjšala kot drugi indeksi. Genotipi z večjimi indeksi zelenosti so imeli večjo celokupno suho maso, večjo listno površino in večji upad temperature listov (LTD), genotipi z večjimi indeksi vitalnosti semen so pokazali velike vrednosti kvantne učinkovitosti PSII (Fv/Fm). 'S1-92521'je imel velike vrednosti vseh merjenih parametrov tako v laboratoriju kot v rastlinjaku. Čeprav je imel genotip 'S1-92521' dobro tolerance na visoke temperature tako v laboratoriju kot v rastlinjaku, so imeli drugi genotipi sladkorne pese zelo različne odzive v obeh poskusih. Glede na rezultate bi lahko indeks vitalnosti semen uporabili kot primerno orodje za preiskušanje genotipov v laboratoriju, parametra LTD in Fv/Fm pa sta se izkazala kot dober kriterij za preiskušanje genotipov na visoke temperature v rastlinjaku.Ključne besede: p...

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Canopy temperature depression at grain filling correlates to winter wheat yield in the U.S. Southern High Plains

Cited by 74 publications

References 38 publications

Physiological Efficiency of Sugarcane Clones under Water-Limited Conditions

Physiological Efficiency of Sugarcane Clones under Water-Limited Conditions

Analysis of canopy temperature depression between tropical rainforest and rubber plantation in Southwest China

The response of the sugar beet (Beta vulgaris L.ssp. vulgaris var. altissima Döll) genotypes to heat stress in initial growth stage

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