Role of extensin peroxidase in tomato ( Lycopersicon esculentum Mill.) seedling growth

Planta ◽  
2000 ◽  
Vol 210 (4) ◽  
pp. 668-676 ◽  
Author(s):  
M. D. Brownleader ◽  
J. Hopkins ◽  
A. Mobasheri ◽  
P. M. Dey ◽  
P. Jackson ◽  
...  
1983 ◽  
Vol 61 (4) ◽  
pp. 1258-1265 ◽  
Author(s):  
V. K. Sawhney

The role of different temperature regimes (low, 18 °C day: 15 °C night (LTR); intermediate, 23 °C day: 18 °C night (ITR); and high, 28 °C day: 23 °C night (HTR)) in the development of tomato (Lycopersicon esculentum Mill.) flowers was studied. In general, flowers produced in LTR contained significantly greater numbers of petals, stamens, carpels, and locules than did plants grown in HTR. In ITR, the number of these organs was intermediate to plants grown in LTR and HTR, but was not significantly different from them in all cases. Gibberellic acid (GA3) also induced an increase in the number of petals, stamens, carpels, and locules; however, its effect was much greater on plants grown in ITR and HTR than on LTR, implying that LTR may produce at least part of its effect through increased levels of endogenous gibberellins. The intensity of response to different temperature regimes was variable for each of the three cultivars studied.


1985 ◽  
Vol 63 (6) ◽  
pp. 1031-1034 ◽  
Author(s):  
V. K. Sawhney ◽  
P. L. Polowick

Tomato (Lycopersicon esculentum Mill.) plants grown under low (LTR), intermediate (ITR), and high (HTR) temperature regimes produced fruits which were significantly different in certain characteristics. Under LTR, fruits were larger, both in fresh weight and size, and contained a greater number of locules than the fruits produced under ITR, which were larger than those developed under HTR. Fruits from plants maintained in temperature-controlled growth chambers before and after pollination were generally larger than those transferred to a greenhouse after pollination. Some abnormalities were observed in fruits grown under LTR but not in those produced under ITR and HTR.


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