Temperature Effects on Seed Germination of Cordia boissieri A. DC. (Boraginaceae)

1992 ◽  
Vol 37 (2) ◽  
pp. 197
Author(s):  
Timothy E. Fulbright
Keyword(s):  
Seed Germination ◽  
Temperature Effects

Quantifying water stress and temperature effects on camelina (Camelina sativa L.) seed germination

2021 ◽  
Vol 186 ◽  
pp. 104450
Author(s):  
Fatemeh Hosseini Sanehkoori ◽  
Hemmatollah Pirdashti ◽  
Esmaeil Bakhshandeh
Keyword(s):  
Water Stress ◽  
Seed Germination ◽  
Temperature Effects ◽  
Camelina Sativa

Temperature Effects on MgO Nanoparticles: Prepared by Green Route Method and Application of Seed Germination

2015 ◽  
Vol 4 (4) ◽  
pp. 290-294
Author(s):  
CH. Ashok ◽  
K. Venkateswara Rao ◽  
CH. Shilpa Chakra ◽  
K. Ganapathi Rao
Keyword(s):  
Seed Germination ◽  
Temperature Effects ◽  
Mgo Nanoparticles ◽  
Green Route

Temperature Effects on the Seed-Germination of 10 Kwongan Species From Eneabba, Western-Australia

1990 ◽  
Vol 38 (5) ◽  
pp. 451 ◽  
Author(s):  
SM Bellairs ◽  
DT Bell
Keyword(s):  
High Temperature ◽  
Seed Germination ◽  
Western Australia ◽  
Low Temperatures ◽  
Temperature Effects ◽  
Perennial Species ◽  
Wetting And Drying ◽  
High And Low Temperatures ◽  
Western Australian

The germination responses of 10 species (Acacia blakelyi, A. pulchella, Allocasuarina humilis, Beaufortia elegans, Conostylis neocymosa, Eucalyptus tetragona, Kennedia prostrata, Leptospermum spinescens, Melaleuca acerosa and Xanthorrhoea drummondii) to constant temperatures ranging from 5 to 35� C were studied. These Western Australian perennial species had optimum germination percentages between 15 and 20�C, except Eucalyptus tetragona which had an optimum at 25�C and Leptospermum spinescens which had an optimum at 10�C. Seeds were transferred from high and low temperatures to 15�C to determine whether high or low temperatures induced dormancy. Low temperatures tended not to affect subsequent germination but high temperature decreased subsequent germination for some species. Wetting and drying stimulated the germination of Acacia blakelyi, A. pulchella and Kennedia prostrata seeds.

scholarly journals Dry after-ripening, light, cold stratification and temperature effects on seed germination of Primula poissonii from Yunnan, China

2019 ◽  
Author(s):  
Deli Peng ◽  
Xiaojian Hu ◽  
Hang Sun ◽  
Zhimin Li
Keyword(s):  
Seed Germination ◽  
Temperature Gradient ◽  
Temperature Effects ◽  
Southwest China ◽  
Alpine Region ◽  
Wild Plant ◽  
Cold Stratification ◽  
Light Requirement ◽  
Alternating Temperature ◽  
Improve Seed Germination

Primula poissonii, an attractive wild plant growing in the subalpine/alpine region of southwest China, has low seed germination in cultivation. This study attempted to improve seed germination by testing the effect of several treatments including dry after-ripening (DAR), light, cold stratification (CS) and temperature gradient treatments. DAR increased germination at 15/5 and 25/15°C, as compared with fresh seeds. DAR seeds germinated significantly better (> 80%) at higher temperatures (20-28°C) than at lower (10°C, < 20%; 15°C, < 30%) and extreme high temperatures (30°C, < 55%; 32°C, 0%). Incubation at alternating temperature (25/15°C) did not significantly improve germination; whereas at 15/5°C germination increased significantly, compared with the corresponding constant temperature (20 and 10°C, respectively). DAR seeds had a strict light requirement at all temperatures. As DAR and CS are sufficient to break seed dormancy, the seeds of P. poissonii appear to have non-deep PD. For non-dormant cold-stratified seeds, the estimated Tb and thermal time (θ50) were 2.3°C and 74.1°Cd, respectively.

scholarly journals Temperature effects on Cuscuta campestris Yunk. seed germination

2013 ◽  
Vol 28 (3) ◽  
pp. 187-193 ◽  
Author(s):  
Marija Saric-Krsmanovic ◽  
Dragana Bozic ◽  
Danijela Pavlovic ◽  
Ljiljana Radivojevic ◽  
Sava Vrbnicanin
Keyword(s):  
Seed Germination ◽  
Weed Control ◽  
Sulphuric Acid ◽  
Temperature Effects ◽  
Room Temperature ◽  
Biological Characteristics ◽  
Cuscuta Campestris ◽  
Different Temperatures ◽  
C 30 ◽  
Germinated Seeds

Studies of biological characteristics of seeds and conditions for their germination have a major importance for planning and executing rational measures of weed control. The aim of this study was to investigate the effect of different temperatures on germination of C. campestris seeds. Three treatments (T1- storage at room temperature; T2 - exposure to 4?C for 30 days; T3 - scarification by concentrated sulphuric acid) differing in manipulation with seeds before germination were tested at different temperatures (5?C, 10?C, 15?C, 20?C, 25?C, 30?C, 35?C, 40?C, 45?C). Germinated seeds were counted daily for ten days and the length of seedlings was measured on the last day. The results showed that differences in germination of C. campestris seeds were very prominent between temperatures, as well as between treatments T1, T2 and T3. Seeds failed to germinate at 5?C and 45?C in all treatments (T1, T2, T3). Germination ranged from 6.25 at 10?C to 96.88%, the highest percentage, achieved at 30?C.

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