A biochar application protects rice pollen from high-temperature stress
Shah Fahada, Saddam Hussaina b, Shah Saudc, Mohsin Tanveera, Ali Ahsan Bajwad, Shah Hassane, Adnan Noor Shaha, Abid Ullahf, Chao Wua, Faheem Ahmed Khang, Farooq Shaha h, Sami Ullahi, Yajun Chenj, Jianliang Huanga k l✉
- aNational Key Laboratory of Crop Genetic Improvement, MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
- bCollege of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, China
- cDepartment of Horticulture, Northeast Agricultural University, Harbin 150030, China
- dDepartment of Agronomy, University of Agriculture, Faisalabad, Pakistan
- eDepartment of Agricultural Extension, Agricultural University Peshawar, Khyber Pakhtunkhwa, Pakistan
- fNational Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
- gKey Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Wuhan, 430070, China
- hDepartment of Agriculture, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
- iDepartment of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
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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.
TL;DRThe pollen of plants treated with biochar + P were more resistant to heat induced stress, and further studies are needed to test the ability of biochar to ameliorate the effects of different abiotic stresses in rice and other crops. (Semantic Scholar)