Approaches to Evaluate the Abortion of Hot Pepper Floral Structures Induced by Low Night Temperature

被引：1
作者：
Tarchoun, N. [1 ]
M'Hamdi, M. [1 ]
Teixeira da Silva, Jaime A. [2 ,3 ]
机构：
[1] Higher Agron Inst Chott Mariem, Sousse 4042, Tunisia
[2] Kagawa Univ, Fac Agr, Miki, Kagawa 7610795, Japan
[3] Kagawa Univ, Grad Sch Agr, Miki, Kagawa 7610795, Japan
来源：
EUROPEAN JOURNAL OF HORTICULTURAL SCIENCE | 2012年 / 77卷 / 02期
关键词：
Capsicum annuum; abortion; flower buds; low temperature regime; STRESS; FLOWER; ABSCISSION; FRUIT; SUCROSE; SUSCEPTIBILITY; METABOLISM; PLANTS; ACID; SET;
D O I：
暂无
中图分类号：
S6 [园艺];
学科分类号：
0902 ;
摘要：
The abortion of buds and flower buds induced by low night temperature stress is an important constraint to the production of pepper (Capsicum annuum L.) grown in unheated greenhouses during winter. The abortion of floral structures was investigated in two local hot pepper varieties ('Beldi and 'Baklouti') grown in a growth chamber at a day/night temperature regime of either low night temperature (25/10 degrees C, LNT) or optimum night temperature (25/20 degrees C, ONT as a control). The negative effect of LNT on the differentiation of floral structures, expressed by the percentage abortion, was recorded for both varieties. LNT affected pepper floral structures early: buds and flower bud stages were more sensitive than flowers at the anthesis stage. The percentage abortion of these structures was less pronounced in 'Beldi' (41.5 %) than in 'Baklouti' (49.6 %) after 5 d of the treatment.
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页码：78 / 83
页数：6
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