Photosynthesis and Productivity of Old and Modern Durum Wheats in a Mediterranean Environment

Koç, Müjde; Barutçular, Celaleddin; Genç, Ibrahim

doi:10.2135/cropsci2003.2089

Cited by 35 publications

(14 citation statements)

References 28 publications

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“…Nevertheless, Taewa exhibited exceptionally high photosynthetic WUE characteristics under water stress. This ability suggests they are well adapted to low water supply as once reported in old wheat compared to their modern wheat [30] and among potato genotypes [31].…”

Section: Discussionsupporting

confidence: 58%

Photosynthetic Water Use Efficiency of Heritage and Modern Potatoes under Limited and Unlimited Water Environments

Fandika¹,

Kemp²,

Millner³

et al. 2014

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Section: Discussionsupporting

confidence: 58%

Photosynthetic Water Use Efficiency of Heritage and Modern Potatoes under Limited and Unlimited Water Environments

Fandika¹,

Kemp²,

Millner³

et al. 2014

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“…In North China, kernel weight of bread wheat was not modified between the sixties and the year 2000 (Zhou et al, 2007). But, in durum wheat growing in a Mediterranean environment in Turkey, kernel weight was superior in modern cultivars (Koç et al, 2003).…”

Section: Discussionmentioning

confidence: 98%

Genetic Progress in Winter Wheat Cultivars released in Chile from 1920 to 2000

Matus

Mellado

Pinares

et al. 2012

Chilean J. Agric. Res.

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Wheat (Triticum aestivum L.) is the major crop in terms of planted area and presents the largest distribution in the country covering a wide range of climatic regions. This study assesses the changes of various agronomic traits of winter wheat cultivars released in Chile between 1920 and 2000. A total of 117 winter accessions, representing 45 old and 72 modern cultivars were tested in a humid Mediterranean-type climate, with irrigation, in 2003. Old cultivars were those released before 1960 and modern ones were those released after 1960. Principal component (PC) analysis using 10 agronomic traits clearly separate modern from old cultivars of winter wheat. Comparing modern cultivars with old ones, plant height have been reduced by 25.6%, but others traits have increased, like harvest index (21.1%), number of grains per ear (42.6%), sedimentation value (103%), and grain hardness (32.0%). The variation in plant height was negatively correlated with harvest index (r = -0.30, p < 0.001). Grain yield, a trait not included in PC analysis, was highly correlated with the second PC (r = 0.81, p < 0.0001). Significant (p < 0.01) correlations were found between the year of release of cultivars and agronomic traits: plant height (r = -0.82), harvest index (r = 0.40), number of grain per ear (r = 0.69), sedimentation value (r = 0.64), and kernel weight (r = -0.46). Those correlations were mostly a consequence of absence or presence of dwarfing genes in the germplasm. Finally, the yield progress was calculated from yield data of yield trial with 15-25 cultivars and advanced lines of winter wheat tested almost every year from 1965 to 2001, showed no increase in yield between 1965 and 1975, but an increment of 246 kg ha -1 per year between 1976 and 1998, representing an annual increase of 2.6%.

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“…Koc et al . (2003) indicated a high correlation between stomatal conductance and photosynthesis rate per unit leaf area 26 . Using cold helium plasma at the booting stage, it was observed that the treated wheat had more length and stronger roots as the key factors to increase absorption of water and nutrition 27 .…”

Section: Discussionmentioning

confidence: 98%

Amelioration of Photosynthesis and Quality of Wheat under Non-thermal Radio Frequency Plasma Treatment

Saberi

Modarres‐Sanavy

Zare

et al. 2018

Sci Rep

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Plasma treatment is recognized as a suitable technology to improve germination efficiency of numerous seeds. The objective of this paper is to demonstrate whether cold air plasma can change the quality and quantity of wheat yield. Effects of cold plasma treatment on wheat (Pishgam variety) yield were studied by a randomized complete block design experiment at the Faculty of Agriculture of Tarbiat Modarres University, Iran, during 2015–17. Seeds were pre-treated with 80 W of cold plasma at four levels of time, 60, 120, 180 and 240 seconds. Plasma effects on yield and quality of wheat were determined by measuring plant photosynthesis, grain yield, biological yield, 1000-grain weight, total chlorophyll, carotenoid, anthocyanin, protein and starch content. Results showed that plasma treatments had positive effects on wheat characteristics, and treatment of 180 s had the highest stimulatory effect. In both years, cold plasma increased grain yield at 180 s, but decreased it at 240 s compared with control. The rate of plant photosynthesis, grain yield, 1000-grain weight, carotenoid and anthocyanin were enhanced at 180 s. The starch content and grain protein were enhanced at 120 s cold plasma application compared with control.

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Photosynthesis and Productivity of Old and Modern Durum Wheats in a Mediterranean Environment

Cited by 35 publications

References 28 publications

Photosynthetic Water Use Efficiency of Heritage and Modern Potatoes under Limited and Unlimited Water Environments

Photosynthetic Water Use Efficiency of Heritage and Modern Potatoes under Limited and Unlimited Water Environments

Genetic Progress in Winter Wheat Cultivars released in Chile from 1920 to 2000

Amelioration of Photosynthesis and Quality of Wheat under Non-thermal Radio Frequency Plasma Treatment

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