نتایج جستجو برای: power tiller

تعداد نتایج: 488004  

2012
Cao Xu Yonghong Wang Yanchun Yu Jingbo Duan Zhigang Liao Guosheng Xiong Xiangbing Meng Guifu Liu Qian Qian Jiayang Li

A rice tiller is a specialized grain-bearing branch that contributes greatly to grain yield. The MONOCULM 1 (MOC1) gene is the first identified key regulator controlling rice tiller number; however, the underlying mechanism remains to be elucidated. Here we report a novel rice gene, Tillering and Dwarf 1 (TAD1), which encodes a co-activator of the anaphase-promoting complex (APC/C), a multi-sub...

Journal: :Journal of Range Management 1978

Journal: :international journal of occupational hygiene 0
parvin nassiri department of occupational health engineering, tehran university of medical sciences, tehran, iran. irajali mohammadi department of occupational health engineering, occupational health research center, iran university of medical sciences, tehran, iran. mohammadhosein beheshti department of occupational health engineering , faculty of health, gonabad university of medical sciences, gonabad , iran. kamal a azam department of biostatistics, school of public health, tehran university of medical sciences, tehran, iran.

the purpose of this study was to assess exposure to hand-arm vibration in tiller users, forty users of tiller in northeastern provinces of iran were examined to measure hand-arm vibration parameters such as root mean square acceleration (rms), total equivalent acceleration, vibration dose value (vdv) and crest factor in three directions (x, y, and z) and various operating modes for comparing th...

Journal: :Journal of Integrative Plant Biology 2019

Journal: :Research in Agricultural Engineering 2018

Journal: :Canadian Journal of Plant Science 1987

1997
Eugene V Maas Scott M. Lesch Leland E. Francois Catherine M. Grieve

Grain yield in wheat (Triticum aestivum L. emend. Thell.) is highly dependent upon the number of spike-hearing tillers produced by each plant. Soil salinity can greatly decrease their number and productivity. Knowing the contribution of specific tillers is essential for breeding salt-tolerant genotypes and for developing wheat growth simulation models. Our objective was to determine the effects...

2015
Venla Jokela Ben Trevaskis Mervi M. Seppänen

Timothy is a perennial forage grass grown commonly in Boreal regions. This study explored the effect of vernalization and photoperiod (PP) on flowering and growth characteristics and how this related to changes in expression of three flowering related genes in accessions from different geographic origin. Large variation was found in accessions in their vernalization and PP responses. In souther...

2009
Peter B. Adler James Leiker Jonathan M. Levine

BACKGROUND Climate change directly affects species by altering their physical environment and indirectly affects species by altering interspecific interactions such as predation and competition. Recent studies have shown that the indirect effects of climate change may amplify or counteract the direct effects. However, little is known about the the relative strength of direct and indirect effect...

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