Low temperature tolerance at early growth stage of maize hybrids released in 1970s ‐ 2000s

2021 ◽  
Author(s):  
Chenchen Xu ◽  
Yujun Cao ◽  
Song Tian ◽  
Haoxing He ◽  
Kuan Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Growth Stage ◽  
Temperature Tolerance ◽  
Early Growth ◽  
Early Growth Stage ◽  
Maize Hybrids ◽  
Low Temperature Tolerance

scholarly journals Exploitation of variability for salinity tolerance in maize hybrids (Zea mays L.) at early growth stage

2016 ◽  
Vol 11 (42) ◽  
pp. 4206-4213 ◽  
Author(s):  
Qayyum Abdul ◽  
Muhammad Saeed Hafiz ◽  
Hanif Mamoona ◽  
Noor Etrat ◽  
Malik Waqas ◽  
...  
Keyword(s):  
Zea Mays ◽  
Salinity Tolerance ◽  
Growth Stage ◽  
Zea Mays L ◽  
Early Growth ◽  
Early Growth Stage ◽  
Maize Hybrids

scholarly journals Root temperature and short term accumulation of carbohydrates in two maize hybrids at early growth stage

Agronomie ◽  
1989 ◽  
Vol 9 (10) ◽  
pp. 941-947 ◽  
Author(s):  
J.-S. Frossard ◽  
J.-F. Friaud ◽  
B. Saint-Joanis
Keyword(s):  
Growth Stage ◽  
Early Growth ◽  
Root Temperature ◽  
Short Term ◽  
Early Growth Stage ◽  
Maize Hybrids

Photoinhibition of Photosynthesis and Its Recovery in Two Maize Hybrids Varying in Low Temperature Tolerance

1989 ◽  
Vol 16 (2) ◽  
pp. 189 ◽  
Author(s):  
DH Greer ◽  
AK Hardacre
Keyword(s):  
Low Temperature ◽  
Temperature Tolerance ◽  
O2 Evolution ◽  
Photoinhibition Of Photosynthesis ◽  
Temperature Dependent ◽  
Maize Hybrids ◽  
Low Temperature Tolerance ◽  
Temperature Regimes ◽  
Subsequent Exposure ◽  
Time Courses

Photoinhibition of photosynthesis was induced in intact leaves of two maize hybrids that differed in low temperature tolerance by exposing the leaves to a photon irradiance (PI) of 1500 �mol m-2s-1 at temperatures of 10, 15 and 20°C. Hybrid A665 × H99 (CBD) is adapted to the U.S.A. Corn Belt and is intolerant of cool conditions, while NZlA × 5-113 (CT) is of high-altitude tropical origin and tolerant of low temperatures. Each hybrid was grown at two temperature regimes of 22/18 and 16/14°C at a PI of 700 �mol m-2s-1. Recovery from photoinhibition was followed at the same temperatures and at a PI of 20�mol m-2s-1. In either case the time-courses of photoinhibition and recovery were monitored by measuring chlorophyll fluorescence at 692 nm and 77K and the photon yield of photosynthetic O2 evolution. Chronic photoinhibition resulting from growth at the moderate PI and at 16/ 14°C was apparent in both hybrids but was more severe in the CBD hybrid. Additional photoinhibition, induced by subsequent exposure to high light, was highly temperature-dependent with increasing severity at lower temperatures. The CT hybrid was more susceptible to this photoinhibition but photoinhibition in the CBD hybrid was more temperature-dependent than in the CT hybrid. Susceptibility to photoinhibition was, therefore, not apparently related to the degree of low temperature tolerance in these maize hybrids. Induced photoinhibition was readily reversible though recovery was temperature-dependent with the most recovery at the higher temperature. Recovery in these hybrids was not impeded by temperatures as low as 10°C as it is in other species and there was no difference between the hybrids in their ability to recover. However, differences in chronic rather than induced photoinhibition conformed to a greater extent with the ability of these maize hybrids to tolerate low temperature.

scholarly journals Low temperature tolerance of human embryonic stem cells

2006 ◽  
pp. 124-129 ◽  
Author(s):  
Boon Chin Heng ◽  
Kumar Jayaseelan Vinoth ◽  
Hua Liu ◽  
Manoor Prakash Hande ◽  
Tong Cao
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Low Temperature ◽  
Human Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Temperature Tolerance ◽  
Low Temperature Tolerance
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