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Strategies for Enhancement in Food Production
normal
In maize, hybrid vigour is exploited by
A
crossing of two inbred parental lines
B
harvesting seeds from the most productive plants
C
inducing mutations
D
bombarding the seeds with $DNA$
(AIPMT-2007)
Solution
(a): Hybridisation or heterosis or hybrid vigour is defined as superiority ofhybridover parents. It has been commercially exploited in different commercial crops like maize, sorghum, bajra, etc. The main steps include: selection of parents, selfing of parents, emasculation, bagging, crossing of desired and selected parents and finally seed setting and harvesting.
Standard 12
Biology
