Flowering and stem growth in the celery-leaved buttercup, Ranunculus sceleratus

1981 ◽  
Vol 59 (8) ◽  
pp. 1386-1392 ◽  
Author(s):  
Ananda B. Samarakoon ◽  
Roger F. Horton
Keyword(s):  
Acetic Acid ◽  
Stem Growth ◽  
Subsequent Growth ◽  
Flower Stalk ◽  
Flowering Stem ◽  
Bud Initiation ◽  
Floral Bud ◽  
Indole 3 Acetic Acid ◽  
Short Days

The semiaquatic celery-leaved buttercup, Ranunculus sceleratus L. flowers under 18-h photoperiods (long days (LD)) but remains vegetative under 8-h photoperiods (short days (SD)). A minimum of 20-30 LD are required for floral bud initiation which occurs prior to the elongation of the flowering stalk. The effects of LD on flowering and the subsequent growth of the flowering stem can be mimicked with gibberellin (GA3) under SD. When plants which have been induced to flower by 28 LD are submerged, the flower stalk elongates rapidly over the next 48 h. Submergence effects can be mimicked by C2H4, but not by GA3 or indole-3-acetic acid (IAA) applications.

Changes in diffusible indole-3-acetic acid from various parts of tulip plant during rapid elongation of the flower stalk

2007 ◽  
Vol 54 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Rong-Yan Xu ◽  
Yoshiji Niimi ◽  
Yuuki Ohta ◽  
Kiyohide Kojima
Keyword(s):  
Acetic Acid ◽  
Flower Stalk ◽  
Rapid Elongation ◽  
Indole 3 Acetic Acid

scholarly journals Hormonal regulation of the growth of leaves and inflorescence stalk in Muscari armeniacum Leichtl.

2016 ◽  
Vol 69 (1) ◽  
Author(s):  
Marian Saniewski ◽  
Justyna Góraj-Koniarska ◽  
Elżbieta Węgrzynowicz-Lesiak ◽  
Eleonora Gabryszewska
Keyword(s):  
Acetic Acid ◽  
Abscisic Acid ◽  
Plant Growth ◽  
Gibberellic Acid ◽  
Growth Regulators ◽  
Hormonal Regulation ◽  
Present Experiment ◽  
Stem Growth ◽  
Flower Bud ◽  
Indole 3 Acetic Acid

It is known that chilling of <em>Muscari</em> bulbs is necessary for the growth of the inflorescence stalk and flowering, but not for the growth of leaves. Gibberellic acid (GA) accelerated stem growth and flowering in chilled <em>Muscari</em> bulbs. In the present experiment it was shown that in unchilled derooted <em>Muscari</em> bulbs the growth of leaves, but not the growth of the inflorescence stalk, was observed when bulbs were stored in water, GA at a concentration of 50 and 100 mg/L, benzyladenine (BA) at a concentration of 25 and 50 mg/L, or a mixture of GA+BA (50+25 mg/L), but abscisic acid (ABA) at a concentration of 10 mg/L greatly inhibited the growth of leaves. In chilled derooted <em>Muscari</em> bulbs the growth of leaves and inflorescence stalk was observed when bulbs were stored in water or GA, but BA and GA+BA treatments totally inhibited the growth of the inflorescence stalk without an effect on the growth of leaves. These results clearly showed that the growth of leaves and inflorescence stalk in <em>Muscari</em> bulbs are controlled by plant growth regulators in different ways. ABA totally inhibited the growth of leaves and inflorescence stalk in chilled derooted <em>Muscari</em> bulbs. It was shown that after the excision of the inflorescence bud in cultivated chilled <em>Muscari</em> bulbs, the inflorescence stalk died, but application of indole-3-acetic acid (IAA) 0.5% in the place of the removed inflorescence bud induced the growth of the inflorescence stalk. IAA applied under the inflorescence bud inhibited the development of flowers (flower-bud blasting) and induced the growth of the inflorescence stalk below the treatment site. These results are discussed with reference to hormonal regulation of stem (stalk) growth in tulip, narcissus, hyacinth, and <em>Hippeastrum</em>.

PHYTOCHROME REGULATION OF STEM GROWTH AND INDOLE-3-ACETIC ACID LEVELS IN THE lv AND Lv GENOTYPES OF Pisum

1992 ◽  
Vol 56 (5) ◽  
pp. 677-684 ◽  
Author(s):  
Friedrich J. Behringer ◽  
Peter J. Davies ◽  
James B. Reid
Keyword(s):  
Acetic Acid ◽  
Stem Growth ◽  
Indole 3 Acetic Acid

Inhibition of Adventitious Bud Initiation in Hypocotyls of Flax by Indole-3-Acetic Acid and Flax Extract

Nature ◽  
1938 ◽  
Vol 142 (3591) ◽  
pp. 398-399 ◽  
Author(s):  
GEORGE K. K. LINK ◽  
VIRGINIA EGGERS
Keyword(s):  
Acetic Acid ◽  
Adventitious Bud ◽  
Bud Initiation ◽  
Indole 3 Acetic Acid

scholarly journals The Effect of Interrupting Short Day Cycles with Day-length Extension on Floral Bud Initiation in Strawberry (Fragaria × ananasa)

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 849C-849
Author(s):  
Victoria L. Davidson* ◽  
Dean A. Kopsell ◽  
James E. Pollard
Keyword(s):  
Day Treatment ◽  
Fruit Size ◽  
Potential Effect ◽  
Day Length ◽  
Floral Buds ◽  
Short Day ◽  
Bud Induction ◽  
Bud Initiation ◽  
Floral Bud ◽  
Short Days

Experiments were conducted to investigate the potential effect on floral bud initiation in strawberry (Fragaria × ananasa, cv. Chandler) by interrupting inductive short day cycles with a day-length extension treatment. Vegetative plants were exposed to 10-, 15-, or 20-day cycles of inductive short days in growth chambers. After receiving an inductive short day treatment plants were transferred to a greenhouse where they were exposed to non-inductive long days, which stimulated panicle elongation. Dissections of apical meristems immediately following each cycle of short days revealed that cycles of 20 days resulted in detectable floral bud formation. After 15 days in the greenhouse, all short day treatments had initiated floral buds. In the greenhouse, under long days, subsequent flowering in cohorts of plants which had previously received inductive short days showed a positive correlation between interruption of short days with day length extension and reduction in the number of floral buds initiated on earliest emerging panicles. These results suggest potential for manipulation of floral bud induction and potentially fruit size in Chandler, and perhaps other cultivars by interruption of a cycle of inductive short days with a day length extension treatment.

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