International Journal of Plant Sciences

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Study of Heterosis for Seed Cotton Yield, Yield Contributing Traits in Desi Cotton (Gossypium arboreum L.)


Affiliations
1 Department of Agriculture Botany, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), India
     

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Cotton crop is mainly cultivated for its fibre and hence yield is important in cotton. Cotton crop is highly amenable to both heterosis and recombination breeding as it is often cross pollinated. The present investigation on heterosis studies for yield and yield contributing traits in desi cotton (Gossypium arboreum L.) was undertaken with the objectives to study the extent of heterosis over mid parent (Average heterosis), better parent (Heterobeltiosis) and standard checks (Standard heterosis). In present investigation four lines were crossed with six testers to obtain 24 hybrids in line x tester design. Data were recorded on yield and yield contributing traits. Analysis of variance for means revealed significant differences for all the characters studied. The magnitude of heterosis, heterobeltiosis and standard/economic heterosis for all the characters in the present study were highly appreciable. Among all the characters, the magnitude of heterosis was highest for number of sympodia per plant measuring to the extent of 55.56 %, 47.37 % and 43.59 % over standard check PKVDH 1, PKV Suvarna and NACH 12 in the cross PA 734 x CNA 1016. It was followed by seed cotton yield per plant (48.77 %, 47.44 % and 33.49 %) in the cross PA 734 x ARBAS 1301 over standard check PKVDH 1, PKV Suvarna and NACH 12, respectively.

Keywords

Heterosis, Standard Heterosis, Micronaire, Staple Length, Heterobeltiosis.
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  • Study of Heterosis for Seed Cotton Yield, Yield Contributing Traits in Desi Cotton (Gossypium arboreum L.)

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Authors

K. S. Thombre
Department of Agriculture Botany, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), India
V. N. Chinchane
Department of Agriculture Botany, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), India
D. B. Deosarkar
Department of Agriculture Botany, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), India
S. B. Borgaonkar
Department of Agriculture Botany, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), India

Abstract


Cotton crop is mainly cultivated for its fibre and hence yield is important in cotton. Cotton crop is highly amenable to both heterosis and recombination breeding as it is often cross pollinated. The present investigation on heterosis studies for yield and yield contributing traits in desi cotton (Gossypium arboreum L.) was undertaken with the objectives to study the extent of heterosis over mid parent (Average heterosis), better parent (Heterobeltiosis) and standard checks (Standard heterosis). In present investigation four lines were crossed with six testers to obtain 24 hybrids in line x tester design. Data were recorded on yield and yield contributing traits. Analysis of variance for means revealed significant differences for all the characters studied. The magnitude of heterosis, heterobeltiosis and standard/economic heterosis for all the characters in the present study were highly appreciable. Among all the characters, the magnitude of heterosis was highest for number of sympodia per plant measuring to the extent of 55.56 %, 47.37 % and 43.59 % over standard check PKVDH 1, PKV Suvarna and NACH 12 in the cross PA 734 x CNA 1016. It was followed by seed cotton yield per plant (48.77 %, 47.44 % and 33.49 %) in the cross PA 734 x ARBAS 1301 over standard check PKVDH 1, PKV Suvarna and NACH 12, respectively.

Keywords


Heterosis, Standard Heterosis, Micronaire, Staple Length, Heterobeltiosis.

References