Some Relationships Between Environmental Reliability and Seed Dormancy in Desert Annual Plants

1983 ◽  
Vol 71 (1) ◽  
pp. 211 ◽  
Author(s):  
K. E. Freas ◽  
Paul R. Kemp
Keyword(s):  
Seed Dormancy ◽  
Annual Plants ◽  
Desert Annual ◽  
Desert Annual Plants

Effects of Different Patterns of Supplemental Water and Nitrogen Fertilization on Productivity and Composition of Chihuahuan Desert Annual Plants

1988 ◽  
Vol 119 (2) ◽  
pp. 336 ◽  
Author(s):  
Julio R. Gutierrez ◽  
Oswaldo A. Da Silva ◽  
Maria I. Pagani ◽  
Danforth Weems ◽  
Walter G. Whitford
Keyword(s):  
Nitrogen Fertilization ◽  
Chihuahuan Desert ◽  
Annual Plants ◽  
Desert Annual ◽  
Desert Annual Plants

IN MEMORIAM—MICHAEL EVENARI AND HIS DESERT SEED DISPERSAL AND GERMINATION STRATEGIES OF SPERGULAR DIANDRA COMPARED WITH SOME OTHER DESERT ANNUAL PLANTS INHABITING THE NEGEV DESERT OF ISRAEL

1994 ◽  
Vol 42 (4) ◽  
pp. 261-274 ◽  
Author(s):  
Yitzchak Gutterman
Keyword(s):  
Position Effect ◽  
Seedling Emergence ◽  
Survival Strategies ◽  
Annual Plants ◽  
Sinai Peninsula ◽  
Late Professor ◽  
Large Numbers ◽  
In Memoriam ◽  
Desert Annual ◽  
Desert Annual Plants

The late Professor Michael Evenari was a leader and agreat scientist with a very wide view and varied interests. Throughout the 26 years that I studied desert plants with Professor Evenari in the deserts of Israel and the Sinai Peninsula, he liked to summarize the seasonal field observations of seedling emergence with the words, “this particular year is a very special year.” What are the reasons for such species' diversity, and what are the survival strategies of desert annuals'? Some species are common and others emerge only once in several years under unpredictable seasonal precipitation and massive seed consumption by ants. Escape dispersal strategies after maturation of the tiny, long-living seeds, and partial “opportunistic” germination strategies after only 10 mm of rain, are found in some common annuals such as Schismus arabicus and Spergularia diandra. Day lengthing seed maturation, and light and temperatures during seed wetting and germination, also affect their germinability. In S. diandra, nine types of seeds have been found (3 genotypes and 3 color phenotypes), which differ in coat structure, color, and germinability, and in Mesembryanthemum nodiflorum a position effect was found (3 groups of seeds in a capsule). The more opportunities for a small portion of seeds from the seed bank to germinate after several rainfalls, the greater the chances to germinate at suitable rain distribution. This enables these plants to develop and produce large numbers of seeds, even after a number of small rainfalls.

scholarly journals Responses of Desert Annual Plants to Ozone and Water Stress in anin situExperiment

JAPCA ◽  
1988 ◽  
Vol 38 (9) ◽  
pp. 1145-1151 ◽  
Author(s):  
A. Bytnerowicz ◽  
D. M. Olszyk ◽  
C. A. Fox ◽  
P. J. Dawson ◽  
G. Kats ◽  
...  
Keyword(s):  
Water Stress ◽  
Annual Plants ◽  
Desert Annual ◽  
Desert Annual Plants

A general method for estimating seed dormancy and colonisation in annual plants from the observation of existing flora

2018 ◽  
Vol 21 (9) ◽  
pp. 1311-1318 ◽  
Author(s):  
Matthieu Pluntz ◽  
Sebastian Le Coz ◽  
Nathalie Peyrard ◽  
Roger Pradel ◽  
Rémi Choquet ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Annual Plants ◽  
General Method

Pre-germination seed vernalization and secondary seed dormancy in winter annual plants

2004 ◽  
Vol 49 (Supplement) ◽  
pp. 36-37
Author(s):  
T. Yoshioka ◽  
S. Satoh ◽  
T. Enomoto ◽  
M. Fenner
Keyword(s):  
Seed Dormancy ◽  
Annual Plants ◽  
Winter Annual
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