The characteristics of inheritance of the main indices for raw cotton and lint

Popova, P.Ja.; Popova, P.Ja

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The characteristics of inheritance of the main indices for raw cotton and lint

Popova, P.Ja.

Cotton genetics. (Problems of heredity, variability and embryology), Akademija Nauk Uzbekskoj SSR Institut Eksperimental'noj Bio-logii Rastenij, Fan, Taskent., 77-102

1969

Accession: 014721045

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Summary

A report is given of the results of ten crosses between forms of Gossypium hirsutum. Heterosis occurred in all F1 hybrids, some of which had higher numbers of bolls or larger bolls, though in most, large bolls were dominant. Long lint was also dominant, as were high ginning outturn and lint index, little or no difference being observed in reciprocal crosses; lint strength and thickness were intermediate. In crosses of parents differing in time of maturity, the hybrids were intermediate; when there was little difference, they were equal to the earlier parent or still earlier. Segregation in the F2 was greatest in crosses between different ecotypes but even in these, constancy for boll weight, lint length and other properties was usually attained by the F6. Though lower than in the F1, yield in the F2 often exceeded that of the parents; later generations often surpassed the parents in yield before the onset of frosts. Some hybrids were equal to G. barbadense in lint qualities, while in some, boll weight was twice that of 5904I. Several hybrids demonstrated the possibility of breaking negative correlations such as that between earliness and large bolls or long lint or between lint length and ginning outturn.

The characteristics of inheritance of the main indices for raw cotton and lint

Popova, P.Ja.

Cotton genetics. (Problems of heredity, variability and embryology), Akademija Nauk Uzbekskoj SSR Institut Eksperimental'noj Bio-logii Rastenij, Fan, Taskent., 77-102

1969

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