Seed Longevity and Seeding Strategies Affect Sagebrush Revegetation

2002 ◽  
Vol 55 (2) ◽  
pp. 188 ◽  
Author(s):  
D. Terrance Booth
Keyword(s):  
Seed Longevity

Comparisons of soil seed bank classification systems

2003 ◽  
Vol 13 (2) ◽  
pp. 101-111 ◽  
Author(s):  
Péter Csontos ◽  
Júlia Tamás
Keyword(s):  
Seed Bank ◽  
Soil Seed Bank ◽  
Plant Ecology ◽  
Classification Systems ◽  
Seed Longevity ◽  
Individual Species ◽  
Ecological Knowledge ◽  
Main Factor

AbstractSince 1969, ten soil seed bank classification systems have been published. Among these systems, the number of recognized seed bank categories varies from three to twelve. Seed longevity is the main factor used for distinguishing categories, but dormancy and germination types are also important. Systems considering relatively few seed bank categories have been the most commonly proposed in contemporary plant ecology. In contrast, systems involving high numbers of categories have received limited interest because the detailed ecological knowledge of individual species required for their successful categorization is usually missing. A comprehensive table on the main features of seed bank classification systems is provided.

scholarly journals Seed longevity of maize conserved under germplasm bank conditions for up to 60 years

2021 ◽  
Author(s):  
Filippo Guzzon ◽  
Maraeva Gianella ◽  
Jose Alejandro Velazquez Juarez ◽  
Cesar Sanchez Cano ◽  
Denise E Costich
Keyword(s):  
Seed Germination ◽  
Plant Genetic Resources ◽  
Seed Viability ◽  
Storage Conditions ◽  
Seed Longevity ◽  
Germplasm Bank ◽  
Significant Difference ◽  
Different Temperatures ◽  
Germination Experiments

Abstract Background and Aims The long-term conservation of seeds of plant genetic resources is of key importance for food security and preservation of agrobiodiversity. Nevertheless, there is scarce information available about seed longevity of many crops under germplasm bank conditions. Methods Through germination experiments as well as the analysis of historical monitoring data, we studied the decline in viability manifested by 1000 maize (Zea mays subsp. mays) seed accessions conserved for an average of 48 years at the CIMMYT germplasm bank, the largest maize seedbank in the world, under two cold storage conditions: an active (–3 °C; intended for seed distribution) and a base conservation chamber (–15 °C; for long-term conservation). Key Results Seed lots stored in the active chamber had a significantly lower and more variable seed germination, averaging 81.4 %, as compared with the seed lots conserved in the base chamber, averaging 92.1 %. The average seed viability detected in this study was higher in comparison with that found in other seed longevity studies on maize conserved under similar conditions. A significant difference was detected in seed germination and longevity estimates (e.g. p85 and p50) among accessions. Correlating seed longevity with seed traits and passport data, grain type showed the strongest correlation, with flint varieties being longer lived than floury and dent types. Conclusions The more rapid loss of seed viability detected in the active chamber suggests that the seed conservation approach, based on the storage of the same seed accessions in two chambers with different temperatures, might be counterproductive for overall long-term conservation and that base conditions should be applied in both. The significant differences detected in seed longevity among accessions underscores that different viability monitoring and regeneration intervals should be applied to groups of accessions showing different longevity profiles.

BOTANY: Patience Yields Secrets of Seed Longevity

Science ◽  
2001 ◽  
Vol 291 (5510) ◽  
pp. 1884-1885 ◽  
Author(s):  
K. Brown
Keyword(s):  
Seed Longevity

Seed Longevity and Its Association with Agronomic Traits in Soybean [Glycine max (L.) Merrill]

2021 ◽  
Author(s):  
Shreya Singh ◽  
Rajesh Kanwar ◽  
R.K. Kapila ◽  
K.C. Dhiman
Keyword(s):  
Agronomic Traits ◽  
Strong Association ◽  
Selection Criterion ◽  
Germination Percentage ◽  
Indirect Selection ◽  
Seed Longevity ◽  
Oilseed Crop ◽  
Ambient Conditions ◽  
Time Period ◽  
Poor Seed

Background: Soybean is an important oilseed crop but it has poor seed longevity. Studies on seed longevity are very complex and hence, an indirect selection criterion should be identified. In this study, seed longevity and its association with agronomic traits of seven soybean varieties was evaluated in the year 2019-2020.Methods: Seed were kept for storage under ambient conditions for a period of 16 months (January 2019 to May 2020). Their germination was recorded at bimonthly intervals and seed longevity was inferred as the time period in months up to which the seed maintains its germination percentage above IMSCS.Result: Accordingly, Palam Early Soya 1 and Him Palam Hara Soya were classified as having short seed longevity (12 months). Hara Soya, Shivalik, Him Soya and Palam Soya were classified as having medium seed longevity (14 months). Whereas, PS 1556 was classified as having long seed longevity ( greater than 16 months). Further, it was found that seed longevity was positively associated with number of pods per plant and seed yield, and negatively associated with number of branches per plant and 100-seed weight. This study presents an indirect selection criterion based on some easily accessible parameters which have strong association with seed longevity.

Association analysis of seed longevity in rice under conventional and high-temperature germination conditions

2013 ◽  
Vol 300 (3) ◽  
pp. 389-402 ◽  
Author(s):  
Gang Li ◽  
Young-Wang Na ◽  
Soon-Wook Kwon ◽  
Yong-Jin Park
Keyword(s):  
High Temperature ◽  
Association Analysis ◽  
Seed Longevity

scholarly journals Seed longevity phenotyping: recommendations on research methodology

2018 ◽  
Author(s):  
Fiona R Hay ◽  
Rocel Valdez ◽  
Jae-Sung Lee ◽  
Pompe C Sta. Cruz
Keyword(s):  
Research Methodology ◽  
Seed Longevity

scholarly journals Further Evidence That the Genebank Standards for Drying Orthodox Seeds May Not Be Optimal for Subsequent Seed Longevity

2018 ◽  
Vol 16 (5) ◽  
pp. 327-336 ◽  
Author(s):  
Katherine J. Whitehouse ◽  
Olorunnisola F. Owoborode ◽  
Olufemi O. Adebayo ◽  
Olaniyi A. Oyatomi ◽  
Amudalat B. Olaniyan ◽  
...  
Keyword(s):  
Seed Longevity ◽  
Orthodox Seeds
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