Soil water availability and plant competition affect the yield of spring wheat

Song, Lijun; Li, Feng Min; Fan, Xian‐Wei; Xiong, You‐Cai; Wang, W.Q.; Wu, X. Ben; Turner, Neil C.

doi:10.1016/j.eja.2009.03.003

Cited by 66 publications

(49 citation statements)

References 40 publications

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“…Hessini et al (2009) found that the shoot-to-root fresh weight ratio increased after 90 days of sowing in Spartina alterniflora, suggesting that shoot weight increases with increasing root weight. Increased root weight and simultaneous aboveground biomass was observed under irrigation in spring wheat planted in rain-fed farming systems (Song et al, 2009). In this study, the large roots in L1 affected regrowth under single clipping, thus inducing cytokinin in roots in L1 to adjust leaf regrowth.…”

Section: (B)mentioning

confidence: 83%

Effects of leaf zeatin and zeatin riboside induced by different clipping heights on the regrowth capacity of ryegrass

Wang

Guo

Hou

et al. 2013

Ecological Research

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The effect of clipping height on ryegrass regrowth was investigated by examining the roles of several plant hormones. Our study consisted of three treatment conditions: (1) darkness over whole plants, (2) darkness only over stubble leaf sheaths, and (3) light over whole plants. Results showed that under darkness over whole plant, low stubble height resulted in low leaf regrowth biomass. Similar leaf regrowth biomass was observed under conditions of darkness only over stubble leaf sheaths as well as light over whole plants. Each unit weight of stubble at different clipping heights has relatively similar potential of providing stored organic substance for leaf regrowth. Therefore, regrowth index, calculated as newly grown leaf biomass divided by unit stubble weight, was used to evaluate regrowth capacity at different clipping heights under minimal influence of organic substances stored in stubbles. Under light over whole plants and single clipping, low stubble height and high stubble height with root thinning resulted in low leaf biomass and high regrowth index. On the other hand, under light over whole plants and frequent clipping high leaf biomass and regrowth index were observed in high stubble height. In addition, we found that leaf zeatin and zeatin riboside (Z + ZR) affected ryegrass regrowth and that roots regulated leaf Z + ZR concentration. Thus, our results indicate that root-derived cytokinin concentration in leaves influences ryegrass regrowth at different clipping heights.

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Section: (B)mentioning

confidence: 83%

Effects of leaf zeatin and zeatin riboside induced by different clipping heights on the regrowth capacity of ryegrass

Wang

Guo

Hou

et al. 2013

Ecological Research

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“…In monocultures, recent cultivars were found to have significantly higher grain yield and WUE for grain (WUEG) than old cultivars (Song et al, 2009;Fang et al, 2011;Yang et al, 2013), and a stable low yield was observed in the old cultivar with low response to irrigation treatment (Rizza et al, 2012). Zhang et al (2010a) showed variation in yield and WUE of about 20% among 16 winter wheat cultivars released between 1998 and 2002, and the ones with higher yield were also generally associated with higher WUE.…”

Section: Introductionmentioning

confidence: 99%

Effects of supplemental irrigation on water consumption characteristics and grain yield in different wheat cultivars

Wang

Zhang

et al. 2015

Chilean J. Agric. Res.

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Shortage of water resources is a major limiting factor for wheat (Triticum aestivum L.) production in the North China Plain. The objectives of this study were to evaluate the effects of supplemental irrigation (SI) on water use characteristics and grain yield of the wheat cultivars 'Jimai 22'and 'Zhouyuan 9369'. Two supplemental irrigation treatment regimens were designed based on target relative soil moisture contents in 0-140 cm soil layers at jointing rising to 75% of field capacity (FC) for each cultivar, and at anthesis rising to 65% and 75% (W1), and 70% and 80% (W2) in 2009-2010 and 2010-2011, respectively. Rain-fed (W0) treatment was used as control. Under W1, grain yield of 'Jimai 22' was 5.22% higher than that of W2, and water use efficiency (WUE) of 'Zhouyuan 9369' was 4.0% higher than that under W2. No significant differences in WUE of 'Jimai 22' and grain yield of 'Zhouyuan 9369' were observed for the two treatment regimens in 2009-2010. Grain yield and WUE in W1 were higher than those of W2 for both cultivars in 2010-2011. W1 enhanced soil water consumption compared to W2, especially in the 100-200 cm soil layers, for both cultivars in 2009-2011. Meanwhile, 'Jimai 22' showed higher soil water consumption and ET from anthesis to mature stage, which resulted in increase in grain yield and WUE of 'Jimai 22' by 8. 15-21.7% and 7.75-11.73% in 2009-2010 and 2010-2011, respectively, compared with 'Zhouyuan 9369'. Thus, our results showed that SI increased the yield and WUE of 'Jimai 22' and W1 was the better treatment regimen.

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“…These finding clearly demonstrated that root/shoot ratio was highly great in GS 31 compared to GS 69. Song et al, (2009) showed there is important and negative relation between grain yield and root: shoot ratio, which basically specified by root rather than shoot. Fang et al (2011) indicated that the modern cultivar with lower root: shoot ratio had a higher grain yield than an old landrace cultivar.…”

Section: Root Length Root Biomass Root/shoot Ratio Root/total Biommentioning

confidence: 99%

Root Biomass Distribution with Root and Shoot Development at Different Growth Stages of Wild, Ancient and Modern Wheat Species

Akman

2017

Turkish JAF Sci.Tech.

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This study was conducted to investigate root and shoot traits of wild, ancient and modern wheat genotypes belonging to 8 different species at long tubes under field weather conditions. It was found significant differences between genotypes with regard to root and shoot traits. The research results indicated that root biomass distribution of genotypes at GS 31 ad GS 69, respectively was found 59.2% and 56.3% in 0-30 cm, 76.7% and 71.9% in 0-60 cm. Modern wheats (Çeşit 1252(Çeşit , Konya 2002 and Triticum vavilovii (ancient wheat) had high root biomass distribution in top soil. In the study, species with AABBDD genomes had higher root length than those with AABB, AABBGG and AA genomes. Triticum dicoccoides, Triticum timopheevii and Triticum monococcum had lower values than other genotypes in terms of root length, crown root number, root biomass, shoot biomass and plant height at both growth stages (GS 31 and GS 69), while Triticum vavilovii and Triticum spelta (hexaploid) took part in the front. Accordingly, Triticum vavilovii and Triticum spelta may be used in breeding programs to improve new modern cultivars with high root and shoot traits.

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Soil water availability and plant competition affect the yield of spring wheat

Cited by 66 publications

References 40 publications

Effects of leaf zeatin and zeatin riboside induced by different clipping heights on the regrowth capacity of ryegrass

Effects of leaf zeatin and zeatin riboside induced by different clipping heights on the regrowth capacity of ryegrass

Effects of supplemental irrigation on water consumption characteristics and grain yield in different wheat cultivars

Root Biomass Distribution with Root and Shoot Development at Different Growth Stages of Wild, Ancient and Modern Wheat Species

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