Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8354741 | Plant Physiology and Biochemistry | 2015 | 24 Pages |
Abstract
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.
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Authors
Shah Fahad, Saddam Hussain, Shah Saud, Mohsin Tanveer, Ali Ahsan Bajwa, Shah Hassan, Adnan Noor Shah, Abid Ullah, Chao Wu, Faheem Ahmed Khan, Farooq Shah, Sami Ullah, Yajun Chen, Jianliang Huang,