Effect of Indoleacetic Acid on Root Growth of X-Irradiated Peas

1952 ◽  
Vol 113 (3) ◽  
pp. 285-293 ◽  
Author(s):  
Edward S. Mika
Keyword(s):  
Root Growth ◽  
Indoleacetic Acid

Propionate as the preferred carbon source to produce IAA in B. subtilis: comparative flux analysis using five carbon sources

2021 ◽  
Author(s):  
Freddy Castillo Alfonso ◽  
Juan Gabriel Vigueras Ramírez ◽  
Luis Manuel Rosales Colunga ◽  
Alberto del Monte Martínez ◽  
Roberto Olivares Hernández
Keyword(s):  
Carbon Source ◽  
Root Growth ◽  
Crop Yield ◽  
Indoleacetic Acid ◽  
Plant Root ◽  
Carbon Sources ◽  
Flux Analysis ◽  
Genus Bacillus

3-indoleacetic acid (IAA) is a phytohormone that promotes plant root growth, improving the use of nutrients and crop yield and it is been reported that bacteria of the genus Bacillus...

Root and Shoot Development on Cuttings of Basswood (Tiliaamericana L.) as Affected by Auxin Treatments and Size of Cuttings

1974 ◽  
Vol 4 (2) ◽  
pp. 246-249 ◽  
Author(s):  
W. A. G. Morsink ◽  
V. G. Smith
Keyword(s):  
Aqueous Solution ◽  
Root Growth ◽  
Aqueous Solutions ◽  
Indoleacetic Acid ◽  
Shoot Development ◽  
Naphthaleneacetic Acid ◽  
Distilled Water ◽  
Water Control ◽  
Indolebutyric Acid

A population of saplings of basswood was studied to determine the effect of size of cutting and a 2-min basal dip in an aqueous solution of either indolebutyric acid (IBA), indoleacetic acid (IAA), or naphthaleneacetic acid (NAA) on root and shoot development of softwood cuttings grown under intermittent mist. Cuttings were 12–60 cm long, and treatments were: distilled water control; and aqueous solutions of auxin at levels of 1000, 5000, 10 000, and 20 000 p.p.m. Significant increases in the growth of roots were obtained with 5000 and 10 000 p.p.m. of IBA. Significant increases in root growth were also obtained with increasing sizes of cuttings.

Cadmium and copper change root growth and morphology of Pinus pinea and Pinus pinaster seedlings

1994 ◽  
Vol 92 (4) ◽  
pp. 675-680 ◽  
Author(s):  
Iduna Arduini ◽  
Douglas L. Godbold ◽  
Antonino Onnis
Keyword(s):  
Root Growth ◽  
Pinus Pinaster ◽  
Pinus Pinea

Genetic variation for rate of establishment in caucasian clover

1998 ◽  
pp. 213-217
Author(s):  
K.H. Widdup ◽  
T.L. Knight ◽  
C.J. Waters
Keyword(s):  
Genetic Variation ◽  
Root Growth ◽  
Seedling Growth ◽  
White Clover ◽  
Seedling Emergence ◽  
Red Clover ◽  
Dry Weight ◽  
Cool Season ◽  
Trifolium Ambiguum ◽  
Root Dry Weight

Slow establishment of caucasian clover (Trifolium ambiguum L.) is hindering the use of this legume in pasture mixtures. Improved genetic material is one strategy of correcting the problem. Newly harvested seed of hexaploid caucasian clover germplasm covering a range of origins, together with white and red clover and lucerne, were sown in 1 m rows in a Wakanui soil at Lincoln in November 1995. After 21 days, the caucasian clover material as a group had similar numbers of emerged seedlings as white clover and lucerne, but was inferior to red clover. There was wide variation among caucasian clover lines (48-70% seedling emergence), with the cool-season selection from cv. Monaro ranked the highest. Recurrent selection at low temperatures could be used to select material with improved rates of seedling emergence. Red clover and lucerne seedlings produced significantly greater shoot and root dry weight than caucasian and white clover seedlings. Initially, caucasian clover seedlings partitioned 1:1 shoot to root dry weight compared with 3:1 for white clover. After 2 months, caucasian clover seedlings had similar shoot growth but 3 times the root growth of white clover. Between 2 and 5 months, caucasian clover partitioned more to root and rhizome growth, resulting in a 0.3:1 shoot:root ratio compared with 2:1 for white clover. Both clover species had similar total dry weight after 5 months. Unhindered root/ rhizome devel-opment is very important to hasten the establishment phase of caucasian clover. The caucasian clover lines KZ3 and cool-season, both selections from Monaro, developed seedlings with greater shoot and root growth than cv. Monaro. KZ3 continued to produce greater root growth after 5 months, indicating the genetic potential for improvement in seedling growth rate. Different pasture estab-lishment techniques are proposed that take account of the seedling growth characteristics of caucasian clover. Keywords: establishment, genetic variation, growth, seedling emergence, Trifolium ambiguum

Root growth and proline content in drought sensitive and tolerant maize (Zea maysL.) seedlings under different water potentials

2005 ◽  
Vol 33 (4) ◽  
pp. 697-704 ◽  
Author(s):  
Adriana Sánchez-Urdaneta ◽  
Cecilia Peña-Valdivia ◽  
Carlos Trejo ◽  
J. Aguirre R. ◽  
Elizabeth Cárdenas S.
Keyword(s):  
Root Growth ◽  
Proline Content ◽  
Water Potentials

Lupane Type Triterpene Isolated from the Leaves of Thecacoris Annobonea (Euphorbiaceae)

2013 ◽  
Vol 12 (10) ◽  
pp. 695-701
Author(s):  
Herve Martial Poumale Poumale ◽  
Alphonsine Nkapwa Guedem ◽  
Louis Pergaud Sandjo ◽  
Bonaventure Tchaleu Ngadjui ◽  
Yoshihito Shiono
Keyword(s):  
Antimicrobial Activity ◽  
Root Growth ◽  
Betulinic Acid ◽  
Aristolochic Acid ◽  
2D Nmr ◽  
Aristolochic Acid I

A new lupane type triterpene (1), together with betulinic acid (2), friedelin (3), aristolochic acid I (4), alpinumisoflavone (5) and 4’-O-methylepinumisoflavone (6) have been isolated from the leaves of Thecacoris annobonea. The structure of the new compound was elucidated on the basis of 1 and 2D NMR experiments. The isolated compounds were evaluated for their phytotoxicity and antimicrobial activity. 1 exhibited significant antimicrobial activity at 30 μg/ml and compounds 1, 2, 3, 4, 5 and 6 inhibited root growth lettuce at 100 μg/ml. 

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