نتایج جستجو برای: hardseededness

تعداد نتایج: 20  

Journal: :Annals of botany 2010
F R Hay R D Smith R H Ellis L H Butler

BACKGROUND AND AIMS Using two parental clones of outcrossing Trifolium ambiguum as a potential model system, we examined how during seed development the maternal parent, number of seeds per pod, seed position within the pod, and pod position within the inflorescence influenced individual seed fresh weight, dry weight, water content, germinability, desiccation tolerance, hardseededness, and subs...

Journal: :Frontiers in agronomy 2021

Ensiling, a lactic acid fermentation process, is mainly used to preserve biomass. In addition, it has been shown affect seed viability of some plant species. The extent which this makes ensiling suitable as weed control measure, however, not yet determined. Both the range controllable species and parameters an process that safely kills seeds are still undefined. We aimed determine effect varyin...

Journal: :Plant Methods 2021

Abstract Background Water uptake is essential for seed germination. However, Gleditsia sinensis seeds have a water-impermeable coat, which beneficial its adaption to the environment, but prohibits germination without treatment. This feature may be associated with structure of coat. Thus, aim this research was identify and describe initial water site movement determine relationship between coat ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Maofeng Chai Chuanen Zhou Isabel Molina Chunxiang Fu Jin Nakashima Guifen Li Wenzheng Zhang Jongjin Park Yuhong Tang Qingzhen Jiang Zeng-Yu Wang

Physical dormancy of seed is an adaptive trait that widely exists in higher plants. This kind of dormancy is caused by a water-impermeable layer that blocks water and oxygen from the surrounding environment and keeps embryos in a viable status for a long time. Most of the work on hardseededness has focused on morphological structure and phenolic content of seed coat. The molecular mechanism und...

2013
Nacer Bellaloui James R. Smith Anne M. Gillen Daniel K. Fisher Alemu Mengistu

The cause of poor seed quality (germination) of soybean produced in the Early Soybean Production System in the midsouth USA is still not completely understood. Temperature, solar radiation, and soybean genotype may all be important factors involved. The objective of this research was to evaluate seed composition, mineral level, and nitrogen assimilation in high and low germinability soybean pla...

Ali Ashraf Jafari Masoomeh Izadpanah

Medicago spp. is the most important forage crop in many regions of the world.Annual medics have distinct advantages over perennial Medicago. These species have fastergrowth rate in cultivation year, higher crude protein percentage, tolerance to pests and morevigorous seedlings. Morphological and physical aspects of pod and seeds of annual medicsplay a major role in the tolerance of the plants t...

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