Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)

The study of heterosis would help in selection of heterotic crosses for commercial exploitation of F1 hybrids in okra (Abelmoschus esculentus (L.) Moench). Forty five F1S were developed by crossing 10 elite lines of okra: P1(IC282248), P2(IC27826-A), P3(IC29119-B), P4(IC31398-A), P5(IC45732), P6(IC8...

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Autores principales:	Reddy Medagam,Thirupathi, Kadiyala,Haribabu, Mutyala,Ganesh, Hameedunnisa,Begum
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	Abelmoschus esculentus F1 hybrids half diallel crosses heterotic pattern hybrid vigour mean performance parental lines
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300003
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spelling	oai:scielo:S0718-583920120003000032018-10-01Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)Reddy Medagam,ThirupathiKadiyala,HaribabuMutyala,GaneshHameedunnisa,Begum Abelmoschus esculentus F1 hybrids half diallel crosses heterotic pattern hybrid vigour mean performance parental lines The study of heterosis would help in selection of heterotic crosses for commercial exploitation of F1 hybrids in okra (Abelmoschus esculentus (L.) Moench). Forty five F1S were developed by crossing 10 elite lines of okra: P1(IC282248), P2(IC27826-A), P3(IC29119-B), P4(IC31398-A), P5(IC45732), P6(IC89819), Py(IC89976), P8(IC90107), P9(IC99716), and P10(IC111443), in half diallel fashion during summer 2009. All 45 F1s along with their 10 parents and one standard control (Mahyco Hybrid N° 10) were evaluated in a randomized complete block design with three replicates during early kharif (June to September) 2009 at the Vegetable Research Station, Rajendranagar, Andhra Pradesh, India, for heterosis of yield and its components of okra. Significance of mean squares due to genotypes revealed the presence of considerable genetic variability among the material studied for almost all yield and yield attributes except plant height. The overall mean heterosis over mid parent and standard control for total yield per plant was 6.92 and -15.44%, respectively, while for marketable yield per plant were 6.64 and -22.18%, respectively. Negatively heterotic crosses like C19 (P3XP5) for days to 50% flowering (-4.35%) and C4(P1XP5) for first flowering and fruiting nodes (-15.22%), respectively, are important to exploit heterosis for earliness in okra. The crosses with non-significant standard heterosis in any given direction for total yield per plant C42, C31, C35, C25, and C36 (8.63, -0.08, -2.61, -3.26, and -4.57%, respectively) and marketable yield per plant C42, C31, and C36 (-5.87, -6.56, and -10.54%, respectively), were statistically on par with the standard control in their mean performance and are found to be as promising as that of the standard control. The F1 hybrid C42(P7XP10) with high yield potential has the potential for commercial cultivation after further evaluation for early kharif season.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.72 n.3 20122012-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300003en10.4067/S0718-58392012000300003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Abelmoschus esculentus F1 hybrids half diallel crosses heterotic pattern hybrid vigour mean performance parental lines
spellingShingle	Abelmoschus esculentus F1 hybrids half diallel crosses heterotic pattern hybrid vigour mean performance parental lines Reddy Medagam,Thirupathi Kadiyala,Haribabu Mutyala,Ganesh Hameedunnisa,Begum Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)
description	The study of heterosis would help in selection of heterotic crosses for commercial exploitation of F1 hybrids in okra (Abelmoschus esculentus (L.) Moench). Forty five F1S were developed by crossing 10 elite lines of okra: P1(IC282248), P2(IC27826-A), P3(IC29119-B), P4(IC31398-A), P5(IC45732), P6(IC89819), Py(IC89976), P8(IC90107), P9(IC99716), and P10(IC111443), in half diallel fashion during summer 2009. All 45 F1s along with their 10 parents and one standard control (Mahyco Hybrid N° 10) were evaluated in a randomized complete block design with three replicates during early kharif (June to September) 2009 at the Vegetable Research Station, Rajendranagar, Andhra Pradesh, India, for heterosis of yield and its components of okra. Significance of mean squares due to genotypes revealed the presence of considerable genetic variability among the material studied for almost all yield and yield attributes except plant height. The overall mean heterosis over mid parent and standard control for total yield per plant was 6.92 and -15.44%, respectively, while for marketable yield per plant were 6.64 and -22.18%, respectively. Negatively heterotic crosses like C19 (P3XP5) for days to 50% flowering (-4.35%) and C4(P1XP5) for first flowering and fruiting nodes (-15.22%), respectively, are important to exploit heterosis for earliness in okra. The crosses with non-significant standard heterosis in any given direction for total yield per plant C42, C31, C35, C25, and C36 (8.63, -0.08, -2.61, -3.26, and -4.57%, respectively) and marketable yield per plant C42, C31, and C36 (-5.87, -6.56, and -10.54%, respectively), were statistically on par with the standard control in their mean performance and are found to be as promising as that of the standard control. The F1 hybrid C42(P7XP10) with high yield potential has the potential for commercial cultivation after further evaluation for early kharif season.
author	Reddy Medagam,Thirupathi Kadiyala,Haribabu Mutyala,Ganesh Hameedunnisa,Begum
author_facet	Reddy Medagam,Thirupathi Kadiyala,Haribabu Mutyala,Ganesh Hameedunnisa,Begum
author_sort	Reddy Medagam,Thirupathi
title	Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)
title_short	Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)
title_full	Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)
title_fullStr	Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)
title_full_unstemmed	Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)
title_sort	heterosis for yield and yield components in okra (abelmoschus esculentus (l.) moench)
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300003
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Heterosis for Yield and Yield Components in Okra (Abelmoschus esculentus (L.) Moench)

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