The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to purchase fresh hybrid seed every year because.
A. hybridvigour is not long-standing due to inbreeding depression
B. they are not allowed to grow their own seed
C. it is always associated with increased heterozygosity
D. always associated with increased homozygosity
Answer:C
The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to purchase fresh hybrid seed every year because.
A. hybridvigour is not long-standing due to inbreeding depression B. they are not allowed to grow their own seed C. it is always associated with increased heterozygosity D. always associated with increased homozygosity