作者: Sangam Dwivedi , Hari Upadhyaya , Prasanta Subudhi , Chris Gehring , Vladimir Bajic
DOI: 10.1002/9780470535486.CH2
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摘要: The success of plant breeding in the 20th century led to new cultivars that, date, have provided enough food for an increasing world population (Conway and Toenniessen 1999; Mifflin 2000). results Green Revolution-led 1960s by Henry M. Beachell andNormanE. Dotlaug—resulted a dramatic increase rice wheal grain yields (Milford Runge 2007; Ortiz et al. 2007). However, abiotic stresses climate change are becoming increasingly serious threats crop production worldwide at time when staple supply will need be significantly higher meet demand growing human population. Water scarcity (Rockstrom 2007], salinity (Rengasamy 2006). low soil fertility (Sanchez Swaminathan 2005) rank among moat important worldwide. Similarly, increased climatic disturbances due global warming causing major that necessitate improvements safeguard supply, particularly developing (Kumar Hence, genetic enhancement cereal crops with respect stress tolerance essential far ensuring water-limited, hotter agricultural zones, If these conditions combine poor saline soils, prevail parts world. Crop adaptation stress-prone environments remains challenging task, not least because complexity stress-adaptive mechanisms plants crops, which most world's (Reynolds 2005}.