Results 1 to 10 of about 356,190 (326)

Potential roles of stigma exsertion on spikelet fertility in rice (Oryza sativa L.) under heat stress [PDF]

Frontiers in Plant Science, 2022
Heat stress during the flowering stage induces declining spikelet fertility in rice plants, which is primarily attributed to poor pollination manifesting as insufficient pollen deposited on the stigma.
Beibei Qi, Beibei Qi, Chao Wu
doaj   +7 more sources

Screening and identification of genes affecting grain quality and spikelet fertility during high-temperature treatment in grain filling stage of rice [PDF]

BMC Plant Biology, 2021
Background Recent temperature increases due to rapid climate change have negatively affected rice yield and grain quality. Particularly, high temperatures during right after the flowering stage reduce spikelet fertility, while interfering with sugar ...
Jae-Ryoung Park, Eun-Gyeong Kim, Yoon-Hee Jang, Kyung-Min Kim   +3 more
doaj   +8 more sources

Abnormal anther development leads to lower spikelet fertility in rice (Oryza sativa L.) under high temperature during the panicle initiation stage [PDF]

BMC Plant Biology, 2021
Background Decreased spikelet fertility is often responsible for reduction in grain yield in rice (Oryza sativa L.). In this study, two varieties with different levels of heat tolerance, Liangyoupeijiu (LYPJ, heat susceptible) and Shanyou63 (SY63, heat ...
Qiuqian Hu, Wencheng Wang, Qifan Lu, Jianliang Huang, Shaobing Peng, Kehui Cui   +5 more
doaj   +6 more sources

Gibberellic Acid: A Key Phytohormone for Spikelet Fertility in Rice Grain Production. [PDF]

Int J Mol Sci, 2016
The phytohormone gibberellic acid (GA) has essential signaling functions in multiple processes during plant development. In the “Green Revolution”, breeders developed high-yield rice cultivars that exhibited both semi-dwarfism and altered GA responses, thus improving grain production.
Kwon CT, Paek NC.
europepmc   +7 more sources

MSD1 regulates pedicellate spikelet fertility in sorghum through the jasmonic acid pathway. [PDF]

Nat Commun, 2018
AbstractGrain number per panicle (GNP) is a major determinant of grain yield in cereals. However, the mechanisms that regulate GNP remain unclear. To address this issue, we isolate a series of sorghum [Sorghum bicolor (L.) Moench] multiseeded (msd) mutants that can double GNP by increasing panicle size and altering floral development so that all ...
Jiao Y, Lee YK, Gladman N, Chopra R, Christensen SA, Regulski M, Burow G, Hayes C, Burke J, Ware D, Xin Z.   +10 more
europepmc   +8 more sources

The Rice Floral Repressor Early flowering1 Affects Spikelet Fertility By Modulating Gibberellin Signaling. [PDF]

Rice (N Y), 2015
AbstractBackgroundGibberellic acid (GA; or gibberellin) affects the development of floral organs, especially anthers and pollen, and perturbation of development of male floral organs can cause sterility. Many studies of GA signaling have concentrated on anther development, but the effect of GA on grain production remains to be examined.ResultsUsing a ...
Kwon CT, Kim SH, Kim D, Paek NC.
europepmc   +8 more sources

Barley SIX-ROWED SPIKE3 encodes a putative Jumonji C-type H3K9me2/me3 demethylase that represses lateral spikelet fertility. [PDF]

Nat Commun, 2017
The VRS genes of barley control the fertility of the lateral spikelets on the barley inflorescence. Here, Bull et al. show that VRS3 encodes a putative Jumonji C-type histone demethylase that regulates expression of other VRS genes, and genes involved in
Bull H, Casao MC, Zwirek M, Flavell AJ, Thomas WTB, Guo W, Zhang R, Rapazote-Flores P, Kyriakidis S, Russell J, Druka A, McKim SM, Waugh R.   +12 more
europepmc   +9 more sources

A rice calcium-dependent protein kinase OsCPK9 positively regulates drought stress tolerance and spikelet fertility. [PDF]

BMC Plant Biol, 2014
In plants, calcium-dependent protein kinases (CDPKs) are involved in tolerance to abiotic stresses and in plant seed development. However, the functions of only a few rice CDPKs have been clarified. At present, it is unclear whether CDPKs also play a role in regulating spikelet fertility.We cloned and characterized the rice CDPK gene, OsCPK9.
Wei S, Hu W, Deng X, Zhang Y, Liu X, Zhao X, Luo Q, Jin Z, Li Y, Zhou S, Sun T, Wang L, Yang G, He G.   +13 more
europepmc   +7 more sources

The effect of alternate wetting and drying (AWD) on spikelet fertility, grain traits and the biosynthesis of 2-acetyl-1-pyrroline (2-AP) in rice grown under high temperature [PDF]

BMC Plant Biology
Background High temperature attributed to climate change is a major obstacle to rice production. This study examined how alternate wetting and drying (AWD) irrigation can mitigate the effects of high temperatures on rice production.
Nnaemeka Emmanuel Okpala, Bin Du, Daniel Bimpong, Mawuli Korsi Amenyogbe, Kelvin Dodzi Aloryi, Yangxuan Liu, Peng Yan, Longzhou Chen, Wenyan Liu, Guoli Wang, Xiaohai Tian, Tianyue An   +11 more
doaj   +4 more sources

Temporal Sensitivities of Rice Seed Development from Spikelet Fertility to Viable Mature Seed to Extreme‐Temperature [PDF]

Crop Science, 2014
Extreme temperature during reproductive development affects rice (Oryza sativa L.) yield and seed quality. A controlled-environment reciprocal-transfer experiment was designed where plants from two japonica cultivars were grown at 28/24 ⁰C and moved to ...
Maite Martínez‐Eixarch, R. H. Ellis
core   +5 more sources