Germination Ecology of the Facultative Biennial Arabis laevigata variety laevigata

1990 ◽  
Vol 124 (2) ◽  
pp. 214 ◽  
Author(s):  
Charles T. Bloom ◽  
Carol C. Baskin ◽  
Jerry M. Baskin
Keyword(s):  
Germination Ecology ◽  
Facultative Biennial

Studies on germination ecology and seedlings characteristics of Cleome viscosa as affected by various environmental factors

2020 ◽  
Vol 52 (6) ◽  
Author(s):  
Muhammad Mansoor Javaid ◽  
Zaigham Abbas ◽  
Hasnain Waheed ◽  
Athar Mahmood ◽  
Tasawer Abbas ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Germination Ecology ◽  
Cleome Viscosa

Germination ecology of the weed Parthenium hysterophorus in eastern Ethiopia

2002 ◽  
Vol 140 (3) ◽  
pp. 263-270 ◽  
Author(s):  
T TAMADO ◽  
W SCHUTZ ◽  
P MILBERG
Keyword(s):  
Parthenium Hysterophorus ◽  
Eastern Ethiopia ◽  
Germination Ecology

Germination Ecology of Chinese Sprangletop (Leptochloa chinensis) in the Philippines

Weed Science ◽  
2008 ◽  
Vol 56 (6) ◽  
pp. 820-825 ◽  
Author(s):  
Bhagirath S. Chauhan ◽  
David E. Johnson
Keyword(s):  
The Philippines ◽  
Germination Ecology

Seed germination ecology of Sumatran fleabane (Conyza sumatrensis) in relations to various environmental parameters – CORRIGENDUM

Weed Science ◽  
2021 ◽  
pp. 1-1
Author(s):  
Gulshan Mahajan ◽  
Ashneel Prasad ◽  
Bhagirath Singh Chauhan
Keyword(s):  
Seed Germination ◽  
Environmental Parameters ◽  
Germination Ecology

Morphophysiological dormancy and germination ecology in diaspores of the subtropical palm Phoenix canariensis Chabaud

Botany ◽  
2021 ◽  
Author(s):  
Lanlan He ◽  
Ganesh K. Jaganathan ◽  
Baolin Liu
Keyword(s):  
Seed Dormancy ◽  
Seedling Emergence ◽  
Primary Root ◽  
Germination Percentage ◽  
Early Summer ◽  
Germination Ecology ◽  
Phoenix Canariensis ◽  
Morphophysiological Dormancy ◽  
Cotyledonary Petiole ◽  
Seed Dormancy And Germination

The timing of germination is a crucial event in a plant’s life cycle. Seed dormancy and germination mechanisms are important factors regulating seedling emergence. Since detailed experimental evidence for germination pattern of Phoenix canariensis colonizing sub-tropical climate is scarce, we investigated seed dormancy and germination ecology of P. canariensis. We found that the embryo is underdeveloped at the time of dispersal and doubles in size before the cotyledonary petiole (CP) protrudes through the operculum. The primary root and plumule emerge from the elongated CP outside the seed. In light/dark at 30/25°C, the CP emerged from 8% of the diaspores within 30 days and from 76% within 14 weeks. Thus, 8% of the diaspores have MD and the others MPD. Removal of the pericarp and operculum resulted in 100% germination within 5 days in light/dark at 30/25°C. Cold and warm stratification as well as treatment with GA3 significantly increased the germination speed, but the final germination percentage was not significantly increased. Seed germination was synchronized in early summer when seed dormancy was released by cold stratification in the soil over winter. A remote-tubular germination type and intricate root system provide an ecological advantage to the seedling establishment.

Understanding dormancy breakage and germination ecology of Cynara cardunculus (Asteraceae)

Weed Research ◽  
2018 ◽  
Vol 58 (6) ◽  
pp. 450-462 ◽  
Author(s):  
H R Huarte ◽  
F Borlandelli ◽  
D Varisco ◽  
D Batlla
Keyword(s):  
Cynara Cardunculus ◽  
Germination Ecology

Comparative seed germination ecology ofAustrostipa compressaandEhrharta calycina(Poaceae) in a Western AustralianBanksiawoodland

1999 ◽  
Vol 24 (1) ◽  
pp. 35-42 ◽  
Author(s):  
MARTIN A. SMITH ◽  
DAVID T. BELL ◽  
WILLIAM A. LONERAGAN
Keyword(s):  
Seed Germination ◽  
Germination Ecology

Fire and flood: Soil-stored seed bank and germination ecology in the endangered Carrington Falls Grevillea (Grevillea rivularis, Proteaceae)

2003 ◽  
Vol 28 (2) ◽  
pp. 128-136 ◽  
Author(s):  
Melinda Pickup ◽  
Keith L. McDougall ◽  
Robert J. Whelan
Keyword(s):  
Seed Bank ◽  
Germination Ecology

scholarly journals Seed germination ecology of Conyza stricta Willd. and implications for management

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0244059
Author(s):  
Safdar Ali ◽  
Fakhar Din Khan ◽  
Rehmat Ullah ◽  
Rahmat Ullah Shah ◽  
Saud Alamri ◽  
...  
Keyword(s):  
Seed Germination ◽  
Osmotic Potential ◽  
Cropping Systems ◽  
Seedling Emergence ◽  
Management Strategies ◽  
Conservation Agriculture ◽  
Weed Species ◽  
Seed Burial ◽  
Germination Ecology ◽  
Tillage Practices

Numerous cropping systems of the world are experiencing the emergence of new weed species in response to conservation agriculture. Conyza stricta Willd. is being a newly emerging weed of barley-based cropping systems in response to conservational tillage practices. Seed germination ecology of four populations (irrigated, rainfed, abandoned and ruderal habitats) was studied in laboratory and greenhouse experiments. The presence/absence of seed dormancy was inferred first, which indicated seeds were non-dormant. Seed germination was then recorded under various photoperiods, constant and alternating day/night temperatures, and pH, salinity and osmotic potential levels. Seedling emergence was observed from various seed burial depths. Seeds of all populations proved photoblastic and required 12-hour light/dark period for germination. Seeds of all populations germinated under 5–30°C constant temperature; however, peak germination was recorded under 17.22–18.11°C. Nonetheless, the highest germination was noted under 20/15°C alternating day/night temperature. Ruderal and irrigated populations better tolerated salinity and germinated under 0–500 mM salinity. Similarly, rainfed population proved more tolerant to osmotic potential than other populations. Seeds of all populations required neutral pH for the highest germination, whereas decline was noted in germination under basic and alkaline pH. Seedling emergence was retarded for seeds buried >2 cm depth and no emergence was recorded from >4 cm depth. These results add valuable information towards our understanding of seed germination ecology of C. stricta. Seed germination ability of different populations under diverse environmental conditions suspects that the species can present severe challenges in future if not managed. Deep seed burial along with effective management of the emerging seedlings seems a pragmatic option to manage the species in cultivated fields. However, immediate management strategies are needed for rest of the habitats.

Seed Germination Ecology in Rupestrian Grasslands

2016 ◽  
pp. 207-225 ◽  
Author(s):  
Flávia Peres Nunes ◽  
Roberta L. C. Dayrell ◽  
Fernando A. O. Silveira ◽  
Daniel Negreiros ◽  
Denise Garcia de Santana ◽  
...  
Keyword(s):  
Seed Germination ◽  
Germination Ecology
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