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Evaluation for heterosis in okra (Abelmoschusesculentus L. Moench)

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Title Evaluation for heterosis in okra (Abelmoschusesculentus L. Moench)
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Creator Prakash Kerure and M. Pitchaimuthu
 
Subject Abelmoschusesculentus, Mean performance, Standard Heterosis, Half diallel
 
Description Not Available
Abstract
The present investigation was conducted in okra to study the magnitude of heterosis and to identify potential parents and
superior cross combinations for twelve plant traits including fruit yield and its component traits. Forty five F1s were
developed by crossing 10 elite lines of okra in half diallel fashion during summer 2016. All 45 F1s along with their 10
parents and one standard check (Nunhems hybrid Shakti) were evaluated in a randomized complete block design with three
replications during late kharif (July to October) 2016 at ICAR- KrishiVigyan Kendra, Babbur Farm, Hiriyur, Chitradurga,
Karnataka. The results revealed wide range of heterotic pattern for different traits. For first fruit producing node, heterosis
over standard control ranged from -9.03 to 43.32, respectively. For days to 50% flowering, heterosis over standard control
ranged from -8.70 to 0.72, respectively and for total yield per plant, heterosis over standard control ranged from -0.13 to
168.55,respectively.The overall maximum positive significant heterosis for total yield per plant was observed in cross IIHR 875 x IIHR-478 (168.55%) over standard heterosis. Negatively heterotic crosses like IIHR-562 x IIHR-444 for days to 50%
flowering (-8.70%) and IIHR-567 x IIHR-107 for fruiting nodes (-9.03%) respectively, are important to exploit heterosis for
earliness in okra. Out of 45 F1s, 44 F1s crosses exhibit significant standard heterosis in any given direction for total yield per
plant except cross IIHR-604 x IIHR-107 (-0.13%). The F1 hybrid IIHR-875 x IIHR-478 with high yield potential has the
potential for commercial cultivation after further evaluation for late kharif season of Karnataka.
Not Available
 
Date 2021-08-19T06:51:59Z
2021-08-19T06:51:59Z
2019-03-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/58810
 
Language English
 
Relation Not Available;
 
Publisher Not Available