Root-Zone Temperature Effects on the Vascular Development of Adventitious Roots in Zea mays

1966 ◽  
Vol 127 (2/3) ◽  
pp. 153-158 ◽  
Author(s):  
Eric Beauchamp ◽  
D. J. Lathwell
Keyword(s):  
Zea Mays ◽  
Temperature Effects ◽  
Adventitious Roots ◽  
Root Zone ◽  
Vascular Development ◽  
Root Zone Temperature ◽  
Zone Temperature

EMERGENCE AND SEEDLING GROWTH OF INBRED LINES OF CORN AT SUBOPTIMAL ROOT-ZONE TEMPERATURES

1987 ◽  
Vol 67 (2) ◽  
pp. 409-415 ◽  
Author(s):  
A. MENKIR ◽  
E. N. LARTER
Keyword(s):  
Zea Mays ◽  
Seedling Growth ◽  
Root Zone ◽  
Seedling Emergence ◽  
Correlation Coefficients ◽  
Dry Weight ◽  
Inbred Lines ◽  
Root Zone Temperature ◽  
Emergence Percentage ◽  
Zone Temperature

Based on the results of an earlier paper, 12 inbred lines of corn (Zea mays L.) were evaluated for emergence and seedling growth at three controlled root-zone temperatures (10, 14, and 18 °C). Low root-zone temperatures, 10 and 14 °C, were detrimental to emergence, seedling growth, and root growth of all inbred lines. Differential responses of inbred lines were observed within each temperature regime. The differences in seedling emergence among lines became smaller with increasing root-zone temperature, while the reverse was true for seedling dry weight. Simple correlation coefficients showed a significantly (P = 0.05) negative association between emergence percentage and emergence index (rate). Neither of these two emergence traits was significantly correlated with seedling dry weights. Seedling dry weights were significantly (P = 0.01) and positively associated with root dry weights. Two inbred lines exhibited good tolerance to low root-zone temperatures, viz. CO255 and RB214. A significant and positive correlation existed between emergence percentage at a root-zone temperature of 10 °C and field emergence in test with the same genotypes reported earlier. Selection at a root-zone temperature of 10 °C for a high percentage of seedling emergence, therefore, could be effective in identifying genotypes capable of germinating in cool soils. Furthermore, the significantly (P = 0.01) positive relationship between seedling dry weights at all root-zone temperatures and those from the field test suggest that strains with vigorous seedling growth in the field could be identified using low root-zone temperature regimes.Key words: Zea mays, root-zone temperature, cold tolerance

Root zone temperature effects on potted Dahlia production

2019 ◽  
pp. 111-116
Author(s):  
C.T. Miller ◽  
K. Schneck ◽  
N. Martini
Keyword(s):  
Temperature Effects ◽  
Root Zone ◽  
Root Zone Temperature ◽  
Zone Temperature

Root-zone temperature effects on the early development of maize

1967 ◽  
Vol 26 (2) ◽  
pp. 224-234 ◽  
Author(s):  
Eric G. Beauchamp ◽  
D. J. Lathwell
Keyword(s):  
Early Development ◽  
Temperature Effects ◽  
Root Zone ◽  
Root Zone Temperature ◽  
Zone Temperature

ROOT-ZONE TEMPERATURE EFFECTS ON PEAT-BAG-CULTURED GERBERAS

1987 ◽  
Vol 67 (2) ◽  
pp. 585-587 ◽  
Author(s):  
M. J. TSUJITA ◽  
R. G. DUTTON
Keyword(s):  
Temperature Effects ◽  
Root Zone ◽  
Stem Length ◽  
Gerbera Jamesonii ◽  
Greenhouse Production ◽  
Root Zone Temperature ◽  
Heated Soil ◽  
Zone Temperature

Three cultivars of Gerbera jamesonii H. Bolus ex Hook. f. planted in peat bags were grown in greenhouses at 16 °C/12.5 °C/12.5 °C or 16 °C/12.5 °C/22 °C day/night/root-zone temperatures. The yield and stem length of the three gerbera cultivars were substantially enhanced by root-zone heating (16 °C/12.5 °C/22 °C). Placing peat bags on heated soil was effective in maintaining the root-zone temperature for Gerbera production.Key words: Gerbera jamesonii, greenhouse production

Sign in / Sign up

Export Citation Format

Share Document