scholarly journals Effects of Temperature Gibberellic Acid and Indolylacetic Acid on Root and Shoot Growth of Cutting From Podocarpus Lawrencei Hook F

1968 ◽  
Vol 21 (3) ◽  
pp. 573 ◽  
Author(s):  
AG Khan
Keyword(s):  
Gibberellic Acid ◽  
Root System ◽  
Shoot Growth ◽  
Indolylacetic Acid ◽  
Root And Shoot Growth ◽  
Effects Of Temperature ◽  
Normal Feature

It has been shown (Khan 1967) that roots of Podocarpus produce nodules under sterile conditions, thus proving that nodule production is a normal feature of the root system and is not induced by the presence of any microoorganism.

Effect of restricted watering on sap flow and growth in corn (Zea mays L.)

1992 ◽  
Vol 72 (2) ◽  
pp. 361-368 ◽  
Author(s):  
J. E. Gavloski ◽  
C. R. Ellis ◽  
G. H. Whitfield
Keyword(s):  
Zea Mays ◽  
Root System ◽  
Heat Balance ◽  
Sap Flow ◽  
Shoot Growth ◽  
Zea Mays L ◽  
Control Plant ◽  
Dry Weight ◽  
Root And Shoot Growth ◽  
Root Box

The heat balance technique for measuring sap flow was used to determine how plant stress from watering various proportions of the root system in corn (Zea mays L.) affects sap flow and root and shoot growth. Sectional root-boxes were used to divide the root system into four equal compartments so that known proportions of the root system could be subjected to water stress. Results indicated that the root-box technique is useful in studying the effects of adverse growing conditions in corn. Treatments consisted of no watering and watering one, two, three, or four sections of the box. Sap flow was measured using gauges that worked on a heat balance principle, and aspects of root and shoot growth were also measured. Withholding water from two or more sections of the box for 26 d resulted in decreased sap flow and fresh and dry weight of stalks compared with plants where all four sections were watered (control). Plant height was lower in boxes where one or more sections were deprived of water compared with the control. Dry weight of roots was less when water was withheld from three or all sections of the roots, and fresh weight of roots was less when water was withheld from all four sections. Corn plants with even half the roots growing under stressed conditions resulted in decreased sap flow and shoot growth.Key words: Root-box, moisture stress

scholarly journals 353 CONTAINER SHAPE, SIZE, AND CUPRIC HYDROXIDE COATING AFFECT ROOT AND SHOOT GROWTH OF FICUS AND PEPPER TREES

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 481c-481
Author(s):  
Ursula K. Schuch ◽  
Dennis R. Pittenger
Keyword(s):  
Root System ◽  
Biomass Production ◽  
Shoot Growth ◽  
Total Biomass ◽  
Above Ground Biomass ◽  
Schinus Terebinthifolius ◽  
Ground Biomass ◽  
Root And Shoot Growth ◽  
Cupric Hydroxide ◽  
Container Shape

This study was designed to determine whether trees growing in tall, narrow containers versus regular containers of equal volume, or trees growing in containers coated with cupric hydroxide versus no coating would have a better quality root system, less circling roots, and more biomass production. Ficus (Ficur retusa L. `nitida') and pepper (Schinus terebinthifolius Raddi.) liners were grown for 6 months in the greenhouse in one-gal. containers. Cupric hydroxide coating prevented matting of roots on the side of the root ball in both species and root circling at the bottom of containers in ficus. Pepper trees growing in regular-shaped containers had a higher biomass production versus trees growing in tall containers. Subsequently, trees were transplanted to 3 or 5 gal. containers with shape or coating as described above. For pepper, cupric hydroxide coating versus no coating reduced circling and matting of roots, trees in regular versus tall containers had increased above ground biomass, and trees in 5-gal. versus 3-gal. containers grew more medium and small-sized roots and produced more total biomass.

Isolation and identification of IAA producing endosymbiotic bacteria from Gracillaria corticata (J. Agardh)

2016 ◽  
Vol 5 (12) ◽  
pp. 5179
Author(s):  
Ilahi Shaik* ◽  
P. Janakiram ◽  
Sujatha L. ◽  
Sushma Chandra
Keyword(s):  
Acetic Acid ◽  
Culture Filtrate ◽  
Indole Acetic Acid ◽  
Shoot Growth ◽  
High Salinity ◽  
Saline Soils ◽  
Bacterial Strains ◽  
Isolation And Identification ◽  
Endosymbiotic Bacteria ◽  
Root And Shoot Growth

Indole acetic acid is a natural phytohormone which influence the root and shoot growth of the plants. Six (GM1-GM6) endosymbiotic bacteria are isolated from Gracilaria corticata and screened for the production of IAA out of six, three bacterial strains GM3, GM5 and GM6 produced significant amount of IAA 102.4 µg/ml 89.40 µg/ml 109.43 µg/ml respectively. Presence of IAA in culture filtrate of the above strains is further analyzed and confirmed by TLC. As these bacterial strains, able to tolerate the high salinity these can be effectively used as PGR to increase the crop yield in saline soils.

Effect of sand grain shape on root and shoot growth of wheat seedlings

Geoderma ◽  
2016 ◽  
Vol 265 ◽  
pp. 1-5 ◽  
Author(s):  
J. Lipiec ◽  
A. Siczek ◽  
A. Sochan ◽  
A. Bieganowski
Keyword(s):  
Shoot Growth ◽  
Grain Shape ◽  
Wheat Seedlings ◽  
Root And Shoot Growth

The Use of Waste Sorbents for Surface Wastewater Treatment to Intensify Plant Growth

2021 ◽  
Vol 25 (7) ◽  
pp. 26-31
Author(s):  
M.P. Fedorov ◽  
V.I. Maslikov ◽  
A.V. Chechevichkin ◽  
V.N. Chechevichkin ◽  
L.A. Yakunin
Keyword(s):  
Root System ◽  
Surface Runoff ◽  
Shoot Growth ◽  
Animal Husbandry ◽  
Forest Resources ◽  
Test Culture ◽  
Optimal Value ◽  
Solid Municipal Waste ◽  
Plant Test ◽  
Slight Inhibition

The possibility of using sorbents from FOPS® filters, spent in the processes of purification of surface wastewater, is shown to intensify the growth of radish plants of the “French breakfast” variety. The ability of these waste sorbents, introduced into soil-ground substrates (SGS) as structure-forming additives enriched with microelements, was found to significantly stimulate the development of the root system with some slight inhibition of shoot growth. In the course of the experiments, the optimal value of the addition of sorbents spent in the processes of cleaning surface runoff (from roads) to the SGS was determined, which provides the greatest increase in the biomass of the root system of plants used as a test culture. It has been established that the accumulation of heavy metals (HMs) in the leaves and roots of a plant test culture increases with an increase in their content in the spent sorbents, but the actual concentrations of HMs in plants do not exceed the standards for their content in robust feed for animal husbandry. An assessment was made of the use of sorbents spent in water purification processes to create soil used in the reclamation of landfills for the placement of solid municipal waste, industrial dumps, road slopes, as well as in the restoration of forest resources and soil remediation.

Circadian regulation of grapevine root and shoot growth and their modulation by photoperiod and temperature

2018 ◽  
Vol 222 ◽  
pp. 86-93 ◽  
Author(s):  
Kare P. Mahmud ◽  
Bruno P. Holzapfel ◽  
Yann Guisard ◽  
Jason P. Smith ◽  
Sharon Nielsen ◽  
...  
Keyword(s):  
Shoot Growth ◽  
Circadian Regulation ◽  
Root And Shoot Growth
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