scholarly journals Argan (Argania spinosa(L.) Skeels) seed germination under nursery conditions: Effect of cold storage, gibberellic acid and mother-tree genotype

2004 ◽  
Vol 61 (2) ◽  
pp. 191-194 ◽  
Author(s):  
Mohamed Alouani ◽  
Fouzia Bani-Aameur
Keyword(s):  
Seed Germination ◽  
Gibberellic Acid ◽  
Cold Storage ◽  
Mother Tree ◽  
Argania Spinosa

scholarly journals 346 Effects of Gibberellic Acid and Seed Location on Seed Germination of Echinacea pallida

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 503A-503
Author(s):  
Ali O. Sari ◽  
Mario R. Morales ◽  
James E. Simon
Keyword(s):  
North America ◽  
Seed Germination ◽  
Gibberellic Acid ◽  
Cold Storage ◽  
Untreated Control ◽  
Germination Rate ◽  
Storage Period ◽  
Echinacea Pallida ◽  
Total Seed ◽  
Storage Temperatures

Echinacea pallida, one of the three medicinal Echinacea species native to North America, is generally wildcrafted, and low and uneven seed germination are obstacles to its widespread cultivation. Nonstratified E. pallida seeds were treated with 2500, 3500, and 4500 mg/L GA3 to increase seed germination. Treated seeds were directly germinated at 25 °C and 25/15 °C (14/10h) or stored at 5 and 10 °C for 4, 8, and 12 weeks before germination at the same temperatures. Seed germination across treatments was higher at 25 °C (19%) than at 25/15 °C (14%). Application of 2500, 3500, and 4500 mg/L GA3 significantly increased seed germination rate and total seed germination of nonstratified seeds of E. pallida and resulted in 44%, 50%, and 63% total seed germination, respectively, while untreated control seeds germinated at only 9%. The effect of GA3 as a germination stimulant increased with cold storage, with maximum germination (83%) occurring after seeds were treated with 4500 mg/L GA3 and an 8-week cold storage period at 10 °C. The effect of cold storage periods of 4, 8, and 12 weeks and cold storage temperatures of 5 and 10 °C on seed germination were generally similar. Seeds collected from the upper rows of the seed heads germinated significantly higher (10.6%) than those collected from the lowest seed rows (2.4%).

scholarly journals Effects of soaking period and gibberellic acid addition on caper seed germination

2009 ◽  
Vol 37 (1) ◽  
pp. 33-41 ◽  
Author(s):  
B. Pascual ◽  
A. San Bautista ◽  
N. Pascual Seva ◽  
R. García Molina ◽  
S. López-Galarza ◽  
...  
Keyword(s):  
Seed Germination ◽  
Gibberellic Acid ◽  
Acid Addition

scholarly journals Effect of NaCl on seed germination in some Centaurium Hill. Species (Gentianaceae)

2007 ◽  
Vol 59 (3) ◽  
pp. 227-231 ◽  
Author(s):  
S. Zivkovic ◽  
M. Devic ◽  
B. Filipovic ◽  
Z. Giba ◽  
D. Grubisic
Keyword(s):  
Life History ◽  
Salt Tolerance ◽  
Seed Germination ◽  
Gibberellic Acid ◽  
White Light ◽  
The Other ◽  
Distilled Water ◽  
Nacl Concentration ◽  
History Of ◽  
Species Specific

The influence of high NaCl concentrations on seed germination in both light and darkness was examined in the species Centaurium pulchellum, C. erythraea, C. littorale, C. spicatum, and C. tenuiflorum. Salt tolerance was found to depend on the life history of the seeds. To be specific, seeds of all five species failed to complete germination when exposed to continuous white light if kept all the time in the presence of 100-200 mM and greater NaCl concentrations. However, when after two weeks NaCl was rinsed from the seeds and the seeds were left in distilled water under white light for an additional two weeks, all species completed germination to a certain extent. The percent of germination not only depended on NaCl concentration in the prior medium, but was also species specific. Thus, seeds of C. pulchellum, C. erythraea, and C. littorale completed germination well almost irrespective of the salt concentration previously experienced. On the other hand, seeds of C. tenuiflorum completed germination poorly if NaCl concentrations in the prior media were greater than 200 mM. When seeds after washing were transferred to darkness for an additional 14 days, they failed to complete germination if previously imbibed on media containing NaCl concentrations greater than 400 mM. However, the seeds of all species, even if previously imbibed at 800 mM NaCl, could be induced to complete germination in darkness by 1 mM gibberellic acid. .

scholarly journals Effect of Gibberellic Acid, Temperature and Embryo Culture on Seed Germination of Four Native Species of Barberry (Berberis spp.)

2016 ◽  
Vol 3 (1) ◽  
pp. 27-37
Author(s):  
Zaynab Taghinezad ◽  
Massoud Dehdari ◽  
Amin Mirshekari ◽  
Hossain Zainali ◽  
◽  
...  
Keyword(s):  
Seed Germination ◽  
Gibberellic Acid ◽  
Embryo Culture ◽  
Native Species

scholarly journals Ancymidol Drenches, Reversed Greenhouse Temperatures, Postgreenhouse Cold Storage, and Hormone Sprays Affect Postharvest Leaf Chlorosis in Easter Lily

2000 ◽  
Vol 125 (2) ◽  
pp. 248-253 ◽  
Author(s):  
Anil P. Ranwala ◽  
William B. Miller ◽  
Terri I. Kirk ◽  
P. Allen Hammer
Keyword(s):  
Gibberellic Acid ◽  
Cold Storage ◽  
Lilium Longiflorum ◽  
Early Growth ◽  
Soluble Carbohydrates ◽  
Flower Longevity ◽  
Night Temperature ◽  
Leaf Chlorosis ◽  
Easter Lily ◽  
Severe Leaf

The interactions of ancymidol drenches, postgreenhouse cold storage, and hormone sprays on postharvest leaf chlorosis and flower longevity of `Nellie White' Easter lilies (Lilium longiflorum Thunb.) were investigated. Ancymidol drenches (0.5 mg/plant twice) during early growth resulted in leaf chlorosis in the greenhouse which intensified further during postharvest. Cold storage (4 °C) of puffy bud stage plants for 2 weeks also accelerated leaf chlorosis. The combination of ancymidol treatment with cold storage resulted in the most severe leaf chlorosis. Promalin (GA4+7 and BA each at 100 mg·L-1) sprays completely prevented postharvest leaf chlorosis, whereas ProGibb (GA3 at 1000 mg·L-1) was ineffective. Cold storage reduced flower longevity and increased bud abortion, however, the degree of bud abortion varied among experiments in different years. Both ProGibb and Promalin sprays increased flower longevity. Compared to positive DIF (difference between day and night temperature) grown plants, forcing under negative DIF (-8 °C) increased the severity of postharvest leaf chlorosis. Leaves were sampled from basal, middle, and upper sections of the stem after 4 and 12 days in a postharvest evaluation room, and analyzed for soluble carbohydrates and N. Total leaf soluble carbohydrates and N concentrations were less in basal and middle sections of negative DIF-grown plants than in positive DIF-grown plants. Leaf chlorosis was associated with depletion of soluble carbohydrates and N in the leaves. Chemical names used: α-cyclopropyl-α-(p-methoxyphenyl)-5-pyrimidinemethanol (ancymidol); gibberellic acid (GA3); gibberellins A4A7 (GA4+7); N-(phenylmethyl)-1H-purine 6-amine (benzyladenine).

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