نتایج جستجو برای: spikelet density

تعداد نتایج: 410885  

2018
Hua Zhang Heng Xu Mengjie Feng Ying Zhu

High temperature significantly alters the amylose content of rice, resulting in mature grains with poor eating quality. However, only few genes and/or quantitative trait loci involved in this process have been isolated and the molecular mechanisms of this effect remain unclear. Here, we describe a floral organ identity gene, OsMADS7, involved in stabilizing rice amylose content at high temperat...

2017
Alexander Vrijdaghs Paul Goetghebeur Erik Smets Pieter Caris ALEXANDER VRIJDAGHS PAUL GOETGHEBEUR ERIK SMETS PIETER CARIS

The inflorescence unit of Schoenus nigricans and S. ferrugineus consists of a zigzag axis and distichously arranged bracts, each of which may or may not subtend a bisexual flower. Each flower seems to terminate a lateral axis. These features have led to a controversy about the nature of the inflorescence unit, particularly whether it is monopodial or sympodial. It was often seen as a pseudospik...

Journal: :Revista de biologia tropical 2006
Ethel Sánchez Tania Quesada Ana M Espinoza

Oryza grandiglumis is a wild species of rice endemic to tropical America. This species was first found in 1998 in the wetlands of Caño Negro, located in the northern part of Costa Rica. Twenty five plants of O. grandiglumis were processed for scanning electron microscope. An ultrastructural description of the leaf blade, ligule, auricles, spikelet and caryopsis, with an emphasis on structures o...

2016
Yajun Tao Jinyan Zhu Jianjun Xu Liujun Wang Houwen Gu Ronghua Zhou Zefeng Yang Yong Zhou Guohua Liang

We constructed 128 chromosome segment substitution lines (CSSLs), derived from a cross between indica rice (Oryza sativa L.) 9311 and japonica rice Nipponbare, to investigate the genetic mechanism of heterosis. Three photo-thermo-sensitive-genic male sterile lines (Guangzhan63-4s, 036s, and Lian99s) were selected to cross with each CSSL to produce testcross populations (TCs). Field experiments ...

2015
Pascal Warnaar Joao Couto Mario Negrello Marc Junker Aleksandra Smilgin Alla Ignashchenkova Michele Giugliano Peter Thier Erik De Schutter

Climbing fiber (CF) triggered complex spikes (CS) are massive depolarization bursts in the cerebellar Purkinje cell (PC), showing several high frequency spikelet components (±600 Hz). Since its early observations, the CS is known to vary in shape. In this study we describe CS waveforms, extracellularly recorded in awake primates (Macaca mulatta) performing saccades. Every PC analyzed showed a r...

Journal: :Agronomy 2022

The selection of high-yielding, short-duration rice cultivars is essential for the double-rice cropping system. High hill density could be achieved with less labor under machine transplanted conditions. Therefore, dense planting more practical machine-transplanted rice. While few studies have been conducted to certify feasibility cultivar combined in current study was executed determine effects...

باقی زاده, ، امین, حامدی, مسعود, رحیمی, مهدی, علوی, نجمه السادات, ملکی, محمود,

27 different populations of Triticum boeoticum were gathered from west and North West of Iran for their grouping using morphological traits. All populations were assessed in farm based on completely random design with three replications in 1393. The measured traits include stem length with spike, spike length with and without awn, awn length, flag leaf length, the woolly leaves, peduncle length...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1999
P Mann-Metzer Y Yarom

Exploring the organization and function of local inhibitory networks is an essential step on the way to understand the principles of brain operation. We show here that molecular layer inhibitory interneurons of the guinea pig cerebellar cortex are organized as local networks, generating synchronous activity. Simultaneous recording from two adjacent interneurons revealed a direct current flow be...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2008
Edward Zagha Eric J Lang Bernardo Rudy

Voltage-gated potassium channel subunit Kv3.3 is prominently expressed in cerebellar Purkinje cells and is known to be important for cerebellar function, as human and mouse movement disorders result from mutations in Kv3.3. To understand these behavioral deficits, it is necessary to know the role of Kv3.3 channels on the physiological responses of Purkinje cells. We studied the function of Kv3....

2014
Sergei Volis

In grasses, variation in seed size and dormancy often results from a seed's position within a dispersal unit. In this paper, I asked whether seed positional effect within a spikelet contributes to ecotypic differentiation between two populations of Avena sterilis having different species range position and associated aridity. I created experimental seed banks in which germination of seeds (flor...

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