2022-08-31 07:26:47
Estimation of various types of Heterosis
1. Average heterosis:It is the heterosis where F1 is superior to mid parent value. In otherwords superior to average of two parents.
F1 - MP
-------------- x 100
MP
Where F1 = Mean of hybrid
MP = Mid parental value.
I.e (P1 + P2) /2
This type of heterosis is of no use in agriculture since the superiority is below the better parent value
2. Heterobeltiosis:Superiority of F1 over the better parent.
F1 - BP
------------- x 100
BP
Where BP = Mean of Better Parent.
3. Economic heterosis:Superiority of the F1 compared to the high yielding commercial variety in a particular crop.
F1 - CV
--------- x 100
CV
Where CV = Mean of Commercial Variety.
4. Negative heterosis:Performance of F1 inferior to better parent / mid parent value. - e.g. Duration.
Source
#facts
#numerical
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176 viewsSourav Rout, 04:26