Increased grain yield with improved photosynthetic characters in modern maize parental lines

Li, Congfeng; Tao, Zhiqiang; Liu, Peng; Zhang, Jiwang; Zhuang, Kezhang; Dong, Shuting; Zhao, Ming

doi:10.1016/s2095-3119(14)60959-x

Cited by 22 publications

(11 citation statements)

References 33 publications

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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%

“…Photosynthesis is the basis for yield formation in crops. Li et al [11] reported that grain yields are positively associated with photosynthetic capacity. Photosynthesis is the main driving force influencing dry matter partitioning and organ formation, and it is the basis of plant production [12,13].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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

Xiang

Song

et al. 2019

Agronomy

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“…Le développement d'hybrides interspécifique qui combinent les meilleures caractéristiques du riz cultivé africain, Oryza glaberrima Steudt., plus adapté aux conditions du milieu, et du riz asiatique, O. sativa L., à rendement plus élevé, obéit à cette stratégie (Jones et al, 1997 ;Ndjiondjop et al, 2010 ;Yacouba et al, 2013). Les tests de lignées recombinées sont importants dans le processus de création de nouvelles variétés (Banito et al, 2012 ;Goalbaye et al, 2013, Bustos et al, 2013Li et al, 2015). Comme pour les autres écosystèmes de culture du riz, le Génotype et l'Environnement de production sont les facteurs clés qui impactent les performance en grain (Liang et al, 2015).…”

Section: Introductionunclassified

Evaluation de lignées intra et inter spécifiques de riz en conditions irriguées au Sénégal

Gueye¹,

Ndiaye²,

Dieng³

2016

Int. J. Bio. Chem. Sci

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Tel : 00 221 77 569 15 95 RESUMÉ Parmi les deux espèces de riz cultivées, l'espèce africaine Oryza glaberrima Steudt. est une source de gènes utiles pour des caractères importants, qui n'existent pas chez l'espèce asiatique Oryza sativa L., limitant ainsi ses performances en Afrique. Cela a inspiré le processus d'hybridation interspécifique entre ces espèces pour développer un nouveau type de riz mieux adapté aux conditions de production du paysan africain. Dans l'optique d'élargissement de la diversité génétique du riz cultivé en conditions irriguées, l'évaluation des performances de 31 lignées intra-et interspécifiques, a été effectuée, dans un dispositif à blocs de Fisher à 2 répétitions, sur deux sites et deux saisons, dans la vallée du fleuve Sénégal. L'analyse de variance combinée sur site et saison a montré un effet très significatif du génotype sur l'ensemble des caractères étudiés. Un effet significatif de la saison sur le cycle et de l'interaction Génotype x Site (G x E) sur la hauteur a aussi été observé. Cependant, aucun effet G x E sur le rendement et le nombre de panicules par m 2 n'a été observé. Les rendements moyens varient entre 6,61 et 8,78 t.ha -1 . Les lignées prometteuses identifiées devraient contribuer à l'amélioration des performances du riz cultivé dans la région. ABSTRACTAmong the two cultivated rice species, the African species Oryza glaberrima Steudt. is a source of useful genes for important traits, which do not exist in the Asian species Oryza sativa L., limiting thus its performance, in Africa. This has inspired the interspecific hybridization process between the two species to develop a new type of rice best suited to the production conditions of the African peasant. With the aim of broadening the genetic diversity cultivated rice in irrigated conditions, the performance evaluation of 31 lines, intra-and inter, was conducted in a randomized complete block design with 2 replications, on two sites and two seasons in the Senegal River valley. The analysis of variance combined over site and season shows a highly significant difference of Genotype (G) for all studied traits. A significant effect of season on cycle, and interaction genotype x location (G x E) on plant height, was also observed. However, no (G x E) effect on yield and number of panicles per quadrate meter were observed. The average of yield varies between 6.61 and 8.78T. GUEYE et al. / Int. J. Biol. Chem. Sci. 10(1): 232-241, 2016 233 t.ha -1 . Identified promising lines should contribute to the sustainable improvement of the performance of rice cultivated in the area.

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“…The interspecific hybrid development that combine the best features of the African cultivated rice, OryzaglaberrimaSteudt., More suited to local conditions, and Asian rice, Oryza sativa L., higher yielding obeys this strategy (Jones et al, 1997). Testing recombinant inbred lines is important in the process of creating new varieties (Li et al, 2015). As with other rice-growing ecosystems, Genotype, and Environment ofproduction are key factors that influence grain performance (Liang et al, 2015).Following a crossing program, fertile recombinant strains were obtained after several generations of backcrossing.…”

Section: Introductionmentioning

confidence: 99%

Rice Lines Performance Evaluation under irrigated conditions in the Senegal

Gueye¹,

Saliou²

2016

Int.J.Curr.Res.Aca.Rev.

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Increased grain yield with improved photosynthetic characters in modern maize parental lines

Cited by 22 publications

References 33 publications

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

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

Evaluation de lignées intra et inter spécifiques de riz en conditions irriguées au Sénégal

Rice Lines Performance Evaluation under irrigated conditions in the Senegal

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