Fruit development in tomato: the role of temperature

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.

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.


2013 ◽  
Vol 40 (1-2) ◽  
pp. 5-14 ◽  
Author(s):  
Piotr M. Piszczek ◽  
Marek Jerzy

Inhibition of the growth of young tomato plants took place under the influence of vibrational stress. The response of the plants was stronger in winter than in summer. The results of the mechanical stress treatment depended on the dosage: small doses of stress given repeatedly slowed down the growth of the transplant much more effectively than larger single doses given every day or every several days. The fresh weight of the shoots decreased under the influence of the stress, as did the dry weight, but to a smaller degree, thus the percentage of dry weight increased. The chlorophyll content in the leaves of plants treated with mechanical stress also increased.


Planta ◽  
2000 ◽  
Vol 210 (4) ◽  
pp. 668-676 ◽  
Author(s):  
M. D. Brownleader ◽  
J. Hopkins ◽  
A. Mobasheri ◽  
P. M. Dey ◽  
P. Jackson ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document