نتایج جستجو برای: pollen viability

تعداد نتایج: 86028  

Journal: :Podilian Bulletin: Agriculture, Engineering, Economics 2019

Journal: :American journal of botany 2010
Yun Wang Li-Lua Meng Yong-Ping Yang Yuan-Wen Duan

UNLABELLED PREMISE OF THE STUDY Some floral traits could be selected by pollinators and nonpollinator agents, and studying the floral traits shaped by physical agents could reveal adaptive mechanisms to the environment. We explored the adaptive significance of the change in floral orientation, from pendulous flowers to erect fruits that have a persistent calyx, in Anisodus luridus, a perenni...

2014
S. Naveed M. Aslam M. A. Maqbool S. Bano Q. U. Zaman

Maize is a dynamic cereal of world’s agriculture community and is grown both in spring and autumn seasons in Pakistan. In case of spring sowing (February sowing) both pistillate and staminate flowers face high temperature stress and ultimately results in poor seed setting because of increased silk dryness and pollen desiccation. Maize accessions were identified on the basis of their performance...

2016
Qi Li Zhuyun Deng Chunyan Gong Tai Wang

Microgametogenesis is the post-meiotic pollen developmental phase when unicellular microspores develop into mature tricellular pollen. In rice, microgametogenesis can influence grain yields to a great degree because pollen abortion occurs more easily during microgametogenesis than during other stages of pollen development. However, our knowledge of the genes involved in microgametogenesis in ri...

Journal: :The Plant journal : for cell and molecular biology 2003
Byung-Ho Kang David M Rancour Sebastian Y Bednarek

Dynamin-related GTPases regulate a wide variety of dynamic membrane processes in eukaryotes. Here, we investigated the function of ADL1C, a member of the Arabidopsis 68 kDa dynamin-like protein family. Analysis of heterozygous adl1C-1 indicates that the mutation specifically affects post-meiotic male gametogenesis. Fifty percent of the mature pollen from heterozygous adl1C-1 androecia are shriv...

Journal: :Environmental Health Perspectives 1981
R A Nilan J L Rosichan P Arenaz A L Hodgdon A Kleinhofs

To utilize and exploit pollen for in situ mutagen monitoring, screening and toxicology, the range of genetic traits in pollen must be identified and analyzed. Traits that can be considered include ornamentation, shape and form, male sterility viability, intraspecific incompatibility, proteins and starch deposition. To be useful for the development of mutagen detection systems proteins should be...

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