Low contribution of photosynthesis and water-use efficiency to improvement of grain yield in Chinese wheat

Chen, X.; Ming, Hao

doi:10.1007/s11099-015-0147-9

Cited by 32 publications

(18 citation statements)

References 21 publications

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“…This result would lead to the viewpoint that improvement of leaf photosynthesis is not a useful strategy to increase crop yield (Richards 2000;Sinclair et al 2004;Zhao et al 2008). In spite of PH not significantly affected grain yield, Chen and Hao (2015) showed that the semidwarf wheat shows a strong adaption to dry environment and it contributes to the significant increase in wheat yields. Yamori et al (2016) showed that enhancing photosynthesis at the single-leaf level would be a useful target for improving crop productivity and yield both via conventional and molecular breeding.…”

Section: Discussionmentioning

confidence: 99%

Effects of fertilizer application rate and planting density on photosynthetic characteristics, yield and yield components in waxy wheat

Fang

She

Wang

et al. 2018

Cereal Research Communications

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Waxy wheat (Triticum aestivum L.) is grown throughout the world for its specific quality. Fertilization and planting density are two crucial factors that affect waxy wheat yield and photosynthetic capacity. The objectives of the research were to determine the effects of fertilization and planting density on photosynthetic characteristics, yield, and yield components of waxy wheat, including Yield, SSR, TGW, GNPP, GWPP, PH, HI, Pn, Gs, Ci, E and WUE using the method of field experiment, in which there were three levels (150, 300, and 450 kg ha -1 ) of fertilizer application rate and three levels (1.35, 1.8, and 2.25 × 10 6 plants ha -1 ) of planting density. The results suggested that photosynthetic characteristics, yield, and yield components had close relationship with fertilization levels and planting density. Under the same plant density, with the increase of fertilization, Yield, SSR, TGW, GNPP, GWPP, HI, Pn, Gs, E and WUE increased and then decreased, PH increased, but Ci decreased. Under the same fertilization, with the increase of plant density, Yield, SSR, TGW, GNPP, GWPP, HI increased and then decreased, PH, Pn, Gs and E increased, PH and WUE declined. The results also showed that F2 (300 kg ha -1 ) and D2 (1.8 × 10 6 plants ha -1 ) was a better match in this experiment, which could obtain a higher grain yield 4961.61 kg ha -1 . Consequently, this combination of fertilizer application rate and plant densities are useful to get high yield of waxy wheat.

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Section: Discussionmentioning

confidence: 99%

Effects of fertilizer application rate and planting density on photosynthetic characteristics, yield and yield components in waxy wheat

Fang

She

Wang

et al. 2018

Cereal Research Communications

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“…Our study is therefore relevant in ensuring stable, high-yielding winter wheat production into the future. On the other hand, only one wheat cultivars was tested in our study and there are many different cultivars developed for dry regions [ 29 ]. For this reason, different winter wheat cultivars may show different responses to the different planting patterns and irrigation frequencies.…”

Section: Discussionmentioning

confidence: 99%

Responses of Winter Wheat Yield and Water Use Efficiency to Irrigation Frequency and Planting Pattern

Bian

Liu

et al. 2016

PLoS ONE

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A suitable planting pattern and irrigation strategy are essential for optimizing winter wheat yield and water use efficiency (WUE). The study aimed to evaluate the impact of planting pattern and irrigation frequency on grain yield and WUE of winter wheat. During the 2013–2014 and 2014–2015 winter wheat growing seasons in the North China Plain, the effects of planting patterns and irrigation frequencies were determined on tiller number, grain yield, and WUE. The two planting patterns tested were wide-precision and conventional-cultivation. Each planting pattern had three irrigation regimes: irrigation (120 mm) at the jointing stage; irrigation (60 mm) at both the jointing and heading stages; and irrigation (40 mm) at the jointing, heading, and milking stages. In our study, tiller number was significantly higher in the wide-precision planting pattern than in the conventional-cultivation planting pattern. Additionally, the highest grain yields and WUE were observed when irrigation was applied at the jointing stage (120 mm) or at the jointing and heading stages (60 mm each) in the wide-precision planting pattern. These results could be attributed to higher tiller numbers as well as reduced water consumption due to reduced irrigation frequency. In both growing seasons, applying 60 mm of water at jointing and heading stages resulted in the highest grain yield among the treatments. Based on our results, for winter wheat production in semi-humid regions, we recommend a wide-precision planting pattern with irrigation (60 mm) at both the jointing and heading stages.

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“…Increased photosynthetic capacity is one of the most important factors for grain yield improvement [11], along with increasing the partitioning of biomass to the flower and grains [49]. Different genotypes differ in their photosynthetic capacity, resulting in differences in dry matter accumulation and yield [50].…”

Section: Discussionmentioning

confidence: 99%

“…Interestingly, the addition of selenium was shown to significantly increase the amount of Chl a, Chl b, and carotenoids and slightly increased the photochemical efficiency of photosystem II (PSII) [53]. Photosynthesis is closely related to crop growth and yield, and higher leaf Pn is one of the most Increased photosynthetic capacity is one of the most important factors for grain yield improvement [11], along with increasing the partitioning of biomass to the flower and grains [49]. Different genotypes differ in their photosynthetic capacity, resulting in differences in dry matter accumulation and yield [50].…”

Section: Discussionmentioning

confidence: 99%

Post-Anthesis Photosynthetic Properties Provide Insights into Yield Potential of Tartary Buckwheat Cultivars

Xiang

Song

et al. 2019

Agronomy

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Photosynthesis is the basis for plant productivity, and improvement of photosynthetic efficiency is an important way to improve crop yield. However, the relationship between photosynthetic parameters and the yield of Tartary buckwheat (Fagopyrum tataricum) under rainfed conditions is unclear. A two-year field trial was conducted during 2016 and 2017 to assess the photosynthetic capacity of different leaves, dry matter accumulation, and yield of four Tartary buckwheat cultivars from flowering to maturity. The leaves of all cultivars aged gradually after flowering, and the leaf chlorophyll (Chl) and soluble protein (SP) contents, net photosynthetic rates (Pn), transpiration rates (Tr), and stomatal conductance (Gs) tended to decline. The Chl, SP, Pn, Tr, and Gs of cultivars (cvs.) XiQiao2 and QianKu3 were significantly higher than those of LiuKu3 and JiuJiang at each sampling time from 18 days after anthesis to maturity, but the intercellular CO2 content (Ci) showed the opposite trend. Cultivars XiQiao2 and QianKu3 produced more total dry matter (mean 17.1% higher), had higher harvest index (HI, mean 16.4% higher), and yield (mean 29.0% higher) than cvs. LiuKu3 and JiuJiang at maturity, and the difference was remarkably consistent. The yield of all the cultivars was positively correlated with leaf Chl, SP, Pn, Tr, and Gs, but negatively correlated with Ci. At late growth stages, the high-yielding cultivars maintained higher Chl, SP contents, Pn, Tr, and Gs, and showed higher dry matter accumulation and lower Ci than the low-yielding cultivars, consistent with their higher leaf photosynthetic capacity. The important factors determining the yield of Tartary buckwheat were maintaining higher leaf Chl and SP content and photosynthetic capacity and delaying aging during the grain formation stage. Enhanced rates of photosynthesis and dry matter accumulation led to higher post-anthesis accumulation of biomass with a positive impact on grain number and higher yield.

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Low contribution of photosynthesis and water-use efficiency to improvement of grain yield in Chinese wheat

Cited by 32 publications

References 21 publications

Effects of fertilizer application rate and planting density on photosynthetic characteristics, yield and yield components in waxy wheat

Effects of fertilizer application rate and planting density on photosynthetic characteristics, yield and yield components in waxy wheat

Responses of Winter Wheat Yield and Water Use Efficiency to Irrigation Frequency and Planting Pattern

Post-Anthesis Photosynthetic Properties Provide Insights into Yield Potential of Tartary Buckwheat Cultivars

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