Abstract Studies investigating the mechanisms underlying variation of photosynthesis along plant phylogeny and especially during domestication are great importance, may provide new insights to further improve crop photosynthesis. In present study, we compiled a database including 542 sets data leaf gas exchange parameters structural chemical traits in ferns fern allies, gymnosperms, non-crop angiosperms, crops. We found that was dramatically improved from allies increased The improvement...

The double-season rice system plays an important role in ensuring food security China. However, changes the grain yield and quality of recently released varieties are still not fully understood, especially early indica (Oryza sativa). In this study, we collected traits 224 China’s Hunan Jiangxi provinces from 2000 to 2020. results showed that yield, but quality, was significantly improved 2020, improvement mainly result increased spikelet number per panicle. Quality such as head rate, chalky...

Leaf structure is an important determinant of leaf photosynthesis; however, the impacts structural traits on gas exchange parameters are still not fully understood. In present study, 11 rice genotypes were grown in pots to investigate influence photosynthesis and hydraulic conductance (Kleaf).In this photosynthetic rate (A), stomatal (gs), mesophyll Kleaf measured. addition, including thickness (LT), mass per area xylem phloem sizes also measured their photosynthesis.We found that total...

Nitrogen is one of the most important elements for plants and closely related to photosynthesis. High temperature stress significantly inhibits photosynthesis under both steady-state flecked irradiance. However, it not known whether nitrogen can affect decrease in caused by high temperature, especially In present study, a pot experiment was conducted two (N) supplies with rice plants, dynamic rates were measured 28 40 °C. increased leaf hydraulic conductance (Kleaf) N supply (HN) but low...

Studies on the temperature (T) responses of photosynthesis and leaf hydraulic conductance (Kleaf ) are important to plant gas exchange. In this study, Kleaf were studied in Shanyou 63 (Oryza sativa) Yannong 19 (Triticum aestivum). Leaf water potential (Ψleaf was insensitive T 63, while it significantly decreased with 19. The differential Ψleaf - relationship partially accounted for differing gm -T relationships, where less sensitive than 63. With different photosynthetic limitations...

Primary mechanism through which nanomaterials enhance plant photosynthesis.

ABSTRACT The impacts of whole‐growth‐duration warming on grain yield and quality in a double rice cropping system remain largely unknown. In this study, 2‐year field experiment was conducted with two inbred indica cultivars (Zhongjiazao 17 Xiangzaoxian 45) for early season hybrid (Wanxiangyouhuazhan Tianyouhuazhan) late season, respectively. results showed that did not affect but significantly decreased yield, which caused by the weight may be related to reduced translocation dry matter...

Abstract BACKGROUND Global warming has been suggested to have negative impacts on most quality traits of rice; however, factors and how they affect the responses rice still need systematic examination under field conditions. RESULTS In this study, we conducted a meta‐analysis evaluate overall grain identify key affecting these impacts, collecting data from 45 published studies with 1316 paired observations. Our results found that significantly increased chalkiness degree, chalky rate,...

SUMMARY Although mesophyll conductance ( g m ) is known to be sensitive temperature T ), the mechanisms underlying response of are not fully understood. In particular, it has yet established whether interspecific variation in – relationships associated with anatomy and vein traits. present study, we measured short‐term eight crop species, leaf water potential Ψ five species over a range 15–35°C. The considered structural parameters surface areas cells chloroplasts facing intercellular...

The intraspecific variations of leaf structure and anatomy in rice leaves their impacts on gas diffusion are still unknown. Researches about the tradeoff between structural compositions intracellular chemical components within lacking. objectives present study were to investigate varietal differences compositions, tissues leaves. Leaf structure, anatomy, composition concentrations exchange parameters measured eight Oryza sativa L. genotypes parameters, (cell wall compounds) (non-structural...

Plant functional traits, including leaf and root economic are important for understanding the composition function of ecosystems. However, plant traits crop species relationships between them, their responses to environmental variations not fully understood. In present study, in economics spectrum (LES RES) biomass were investigated 14 wheat genotypes grown with sufficient or limited nitrogen (N) supply. We found that N had significant impacts on LES RES among them. Our results generally...

Abstract Background and Aims Plasticity of leaf growth photosynthesis is an important strategy plants to adapt shading stress; however, their development achieve a simultaneous increase in area under remains unknown. Methods In the present study, pot experiment was conducted using three rapeseed genotypes Huayouza 50 (HYZ50), Zhongshuang 11 (ZS11) 62 (HYZ62), responses plant growth, morphoanatomical traits, cell wall composition were investigated. Key Results Shading significantly increased...

Leaf photosynthesis is highly correlated with CO2-diffusion capacities, which are determined by both leaf anatomical traits and environmental stimuli. In the present study, photosynthetic rate (A), stomatal conductance (gs), mesophyll (gm) related were studied on rice plants at two growth stages different N supplies, response of to temperature (T) was also studied. We found that gm significantly higher mid-tillering stage high treatment. The larger a chloroplast surface area facing...

Improving the yield and quality for tasty rice varieties is a great challenge. In present study, different nitrogen rates plant density were utilized to form differential populational structures, which determined clarify key traits determining grain in double-cropped system subtropical China. The results showed that photosynthetic rate, leaf area index respiration rate had important significant impacts on yields of both early late rice, though was also significantly affected by canopy...

In this paper, four rice genotypes showing different leaf mass per area (LMA) are used to explore the effects of nitrogen (N) supplies on anatomy and chemical composition as well their impacts gas exchange parameters. The results showed that mass-based area-based N contents net photosynthetic rate (A) under high supply (HN) were all higher than those a low (LN). However, had no effect stomatal conductance, mesophyll use efficiency. Moreover, significant LMA cell wall thickness. Leaf...