Impact of improved sorghum cultivars on genetic diversity and yield stability
2011
n k rao | p j bramel | b v s reddy | u k deb | m c s bantilan
U K Deb et al., 'Impact of improved sorghum cultivars on genetic diversity and yield stability', International Crops Research Institute for the Semi-Arid Tropics, vol. 1(1), pp.225-234, International Crops Research Institute for the Semi-Arid Tropics, 2011
Показать больше [+] Меньше [-]The genetic diversity of a crop species is fundamental to its improvement and survival. Low levelsof genetic diversity in cultivars increasingly render them vulnerable to unexpected pests anddiseases, resulting in major production losses. History has been witness to numerous epidemicscaused by low levels of nuclear and cytoplasmic genetic diversity. These include the blight thataffected temperate potatoes in the northern hemisphere in the 1840s and the southern corn leafblight epidemic of maize in the USA in 1970 (McIntyre et al. 1997)
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