期刊
PLANT PHYSIOLOGY AND BIOCHEMISTRY
卷 96, 期 -, 页码 281-287出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2015.08.009
关键词
Anther dehiscence; Biochar; High temperature; Phosphorus fertilization; Pollen fertility
资金
- Key Technology Research & Development Program of China [2012BAD04B12]
- MOA Special Fund for Agro-scientific Research in the Public Interest of China [201103003]
The influences of high temperature and fertilization with biochar and phosphorus (P) on the pollen characteristics of two rice cultivars (IR-64 and Huanghuazhan) were examined in controlled growth chambers. Temperature treatments included high daytime temperature (HDT), high nighttime temperature (HNT) and ambient temperature (AT). The fertilization treatments were control, biochar alone, P alone and biochar + P. High temperature severely reduced pollen fertility, anther dehiscence, pollen retention and pollen germination of both rice cultivars, with HNT more destructive than HDT. The Huanghuazhan cultivar performed better than IR-64 under high temperature, with higher pollen fertility, better anther dehiscence and greater pollen retention and germination rates. In both cultivars, the pollen of plants treated with biochar + P were more resistant to heat induced stress. Further studies are needed to test the ability of biochar to ameliorate the effects of different abiotic stresses in rice and other crops. (C) 2015 Elsevier Masson SAS. All rights reserved.
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