Results 131 to 140 of about 52,924 (286)

Efecto de la densidad de población y la fertilización en el cultivo de soya (Glycine max (L) Merr) de doble producción (forraje y grano)

Acta Agronómica, 1986
En el estudio se utilizó un diseño de parcelas divididas, correspondiendo la fertilización a las parcelas principales y a las sub parcelas las tres densidades de población. La soya puede utilizarse como planta de doble fin.
Forero P. Jaime A., Nuñez A. Carlos J., Castellar P. Nelson   +2 more
doaj  

Auxin production couples endosperm development to fertilization

, 2015
In flowering plants, seed development is preceded by a double fertilization event, whereby two male sperm cells fuse with two female gametes: the egg and central cells.
Roszak, P., Roszak, Pawel,, Sveriges lantbruksuniversitet., Köhler, Claudia,, Figueiredo, Duarte,, Figueiredo, D., Batista, Rita,, Batista, R., Köhler, C.   +8 more
core   +1 more source

Resistant Peanut Genotype Reprograms Rhizosphere Metabolism to Enhance Bacterial Wilt Suppression

Advanced Science, EarlyView.
The resistant peanut genotype selectively recruits beneficial bacteria, which coincides with the activation of salicylic acid (SA)‐dependent systemic acquired resistance (SAR) against Ralstonia solanacearum. Keystone rhizosphere metabolites are positively correlated with both beneficial microbiome assembly and SAR gene expression.
Rui Ren, Xiaogang Li, Hao Li, Zenghui Cao, Mengtian Hou, Chunlei Zhao, Nan Lou, Sasa Hu, Yanzhe Li, Qian Ma, Yaoyao Li, Yi Fan, Kunkun Zhao, Kai Zhao, Ding Qiu, Fangping Gong, Zhongfeng Li, Haitao Liu, Xingli Ma, Xingxiang Wang, Dongmei Yin   +20 more
wiley   +1 more source

Localized organo-mineral fertilization maintains ultra-early watermelon yield while reducing mineral nitrogen input under temporary film cover

Frontiers in Agronomy
Cultivating ultra-early watermelon (Citrullus lanatus) in arid continental climates requires both early-season thermal protection and efficient nutrient management to ensure high yield while limiting excessive mineral fertilizer inputs.
Toshtemir Ostonakulov, Durdona Umirova, Xamidulla Amirov, Xamidulla Amirov, Anvar Shamsiev, Sabirjan Isaev, Iroda Lukova, Nilufar Shabarova, Anvar Islamov, Shuxrat Tuychiev, Muabara Xakimova, Ilhom Amanturdiev   +11 more
doaj   +1 more source

THE DOSE EFFECT of IKKADIATED RICE POLLEN ON DOUBLE FERTILIZATION

, 1995
用60COγ射线辐照水稻保持系V20b成熟花穗，在不育系V20A上授粉，观察雄配子体双受精行为的辐照剂量效应。结果表明，雄配子体双受精进程所需时间随辐照剂量增大而延长，且主要表现在雌雄配子体核仁融合时间延长。0.186kgy以下剂量组，其延长时间在13H以下，0.279kgy以上剂量组，其延长时间达15H以上。同时，产生多种形态的畸形胚细胞和胚乳核。The mature panicles of rice were treated with 60Coγ-rays in the range of 0～0 ...
邱思密, 陈正明, 杨觉民, 杨惠杰, 陈如铭, 王侯聪   +5 more
core  

Stem Cell Differentiation Disperses Transcriptional Clusters via a Conserved Surface‐Condensate Trajectory

Advanced Science, EarlyView.
Stem cell differentiation follows a conserved surface condensate trajectory: H3K27ac super enhancers nucleate large RNA polymerase II clusters that grow and unfold before transcriptional activity disperses them. This work reveals how biophysical forces at enhancer surfaces dynamically build and dismantle stem cell transcription hubs, reshaping cell ...
Tim Klingberg, Irina Wachter, Agnieszka Pancholi, Matthias Akyel, Yomna Gohar, Priya Kumar, Ana Miguel Fernandes, Yuzhi Bao, Alica Schmidt‐Heydt, Marcel Piepers, Alicia Günthel, Marcel Sobucki, Elisa Kämmer, Süheyla Eroğlu‐Kayıkçı, Stephan Allgeier, Sylvia Erhardt, Vasily Zaburdaev, Carmelo Ferrai, Lennart Hilbert   +18 more
wiley   +1 more source

NAD+ Metabolism Licenses Zygotic Genome Activation via PARP7‐Mediated ADP‐Ribosylation of UHRF1 in Mouse Early Embryos

Advanced Science, EarlyView.
This study uncovers a metabolic‐epigenetic axis licensing zygotic genome activation (ZGA) in mouse embryos. A developmental decline in NAD+ levels activates PARP7, which mono‐ADP‐ribosylates and stabilizes UHRF1. This modification promotes the establishment of permissive histone acetylation marks, thereby facilitating timely ZGA.
Guangyi Cao, Ziqi Zhang, Anqi Chen, Yanbo Liu, Yuling Lin, Lina Yu, Ruixin Shi, Aolei Guo, Yan Mao, Ganggui Lou, Chaojun Li, Luhong Wen, Guijun Yan, Haixiang Sun   +13 more
wiley   +1 more source

Double fertilization in Arabidopsis thaliana involves a polyspermy block on the egg but not the central cell

, 2008
In animal reproduction, thousands of sperm may compete to fertilize a single egg, but polyspermy blocks prevent multiple fertilization that would otherwise lead to death of the embryo.
Susan J. Armstrong, Rod J. Scott, Spielman, M, Armstrong, Susan, Scott, RJ, James Doughty, Doughty, J, Melissa Spielman   +7 more
core   +1 more source

Interfacial Water Coordination on Ruthenium Oxide Nanoparticles Confined Within Covalent Organic Framework and Its Effect on Electrochemical Nitrate Reduction

Advanced Science, EarlyView.
We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li, Xin Zhao, Arsenii S. Portniagin, Yuxuan Wu, Desui Chen, Haochen Liu, Andrey L. Rogach   +6 more
wiley   +1 more source

MIS12 Is Required for Kinetochore‐Microtubule Attachment in Oocyte Meiosis

Advanced Science, EarlyView.
A model depicting the role of MIS12 in K‐MT attachment during oocyte meiosis. The presence of MIS12 stabilizes bipolar K‐MT attachments by maintaining the function of NDC80 and its interaction with TUBB. This, in turn, promotes KNL1 assembly and subsequent SAC protein recruitment to kinetochores.
Jian Li, Chun‐Hui Zhang, Yong Wang, Cheng‐Yuan Li, Da‐Rong Wen, Xi Xia, Liang Zhou, Wei‐Ping Qian, Qing‐Yuan Sun, Chang‐Zhong Li   +9 more
wiley   +1 more source