Heterosis for yield and its components in okra [Abelmoschus esculentus (L.) Moench]

Tiwari, J N; Kumar, Sanjeev; Ahlawat, T. R.; Kumar, Akhilesh; Patel, N. H.

doi:10.15740/has/tajh/10.2/201-206

Cited by 8 publications

(5 citation statements)

References 3 publications

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“…It also revealed that number of fruits per plant, fruit weight, fruit length and fruit girth were the main contributors towards increased fruit yield. The similar results have been reported in okra by Reddy et al (2012a) [9] , Reddy et al (2013b) [10] , Solankey et al (2013) [11] , Gajera and Vaddoria (2014) [2] , Nagesh et al (2014) [5] , Tiwari et al (2015) [13] , Bhatt et al (2016) [1] , Kumar and Reddy et al (2016) [4] , Paul et al (2017a) [6] , Punia et al (2017) [8] , Gavint et al (2018) [3] and Prakash et al (2019).…”

Section: Resultssupporting

confidence: 82%

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Exploitation of hybrid vigour for fruit yield and its components in okra [Abelmoschus esculentus (L.) Moench]

An¹,

Ma²,

Dr³

2020

Int. J. Chem. Stud.

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The present investigation on "Exploitation of hybrid vigour for fruit yield and its components in okra [Abelmoschus esculentus (L.) Moench]" was conducted at the Vegetable Research Station, Junagadh Agricultural University, Junagadh during summer 2018. The experimental material comprised of 16 parents (12 lines and 4 testers) to develop 48 hybrids using line x tester mating design. The final evaluation trial was conducted with 16 patents, their 48 F1 hybrids along with one commercial check (GJOH-4) in a randomized block design (RBD) with three replications. On considering the performance of hybrids in respect of fruit yield per plant, 4 and 3 hybrids exhibited significant and positive heterosis over better parent and standard check, respectively. Significant and positive estimates of heterobeltiosis and standard heterosis for fruit yield per plant were exhibited by the crosses IC-282248 x GAO-5 (33.77%, 24.67%), IC-282248 x Pusa Sawani (22.84%, 14.30%) and IC-31398 x GO-2 (17.30%, 13.14%), respectively and could be utilized for commercial exploitation of heterosis after large scale multilocation testing. The heterosis for fruit yield per plant was also associated with the heterosis expressed by its component characters.

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Section: Resultssupporting

confidence: 82%

“…The fruit yield per plant is an attribute of economic importance which the plant breeders attempt to improve by evolving new high yielding hybrids. [9,2,5,13,1,4,6,8,3] . The results indicated that in different crosses, pathway for releasing heterotic effects varied from cross to cross.…”

Section: Resultsmentioning

confidence: 99%

Exploitation of hybrid vigour for fruit yield and its components in okra [Abelmoschus esculentus (L.) Moench]

An¹,

Ma²,

Dr³

2020

Int. J. Chem. Stud.

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“…Ten out of the 12 crosses showed signifcant positive MP heterosis and 10 crosses for BP heterosis. Similar magnitude of heterosis was also reported by [13,[33][34][35][36][37][38][39].Te best crosses, which were classifed on the basis of heterosis parameters, showed that two out of the 12 studied crosses were derived from P 4 (Line 4.1.18) as male or female parent that was classifed as a good performance for plant height, no. of pods/plant, average weight of pod, total fresh pods, weight of small pods/plot, pods length, pods diameter, and weight of medium pods.…”

Section: Discussionsupporting

confidence: 81%

Genetic Components Derived Parameters and Heterosis in Okra under Saudi Arabia Conditions

Abdelkader,

Mahmoud,

Diyasty

et al. 2024

Genetics Research

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Four parental genotypes of okra were crossed in complete diallel design to study the direction and extent of relative heterosis and heterobeltiosis for yield and its associated traits for utilization of existing genetic diversity to develop heterotic F1 hybrids in okra. The additive genetic component (D) was significant in all studied traits except average pod weight. Nonadditive (H1 and H2) components were found to be significant in all studied traits. However, the values of the dominant effect (H1) were smaller than the D components for no. of nodes/plant, no. of pods/plant, weight of medium pods, weight of large pods, and total fresh pod yield. The maximum significant MP heterosis in the desirable direction (149.9%) was recorded for the weight of large pods/plot. The maximum significant heterobeltiosis in the desirable direction (120.1%) was recorded for the weight of small pods/plot followed by total fresh pod yield (107.4%), the weight of large pods/plot (104.9%), weight of medium pods/plot (92.1%), average pod weight (51.8%), number of pods/plant (38.4%), and plant height (34.3%). It could be concluded that plant height, average pod weight, and the number of branches could be considered for the development of elite hybrids (heterosis breeding) or inbred lines (pure line selection) in succeeding generations. Therefore, these parameters can be considered for selecting genotypes to improve the pod yield of okra. The superior crosses identified through heterosis analysis were Egyptian Balady × Line 4.1.18 (30.8 ton/ha), Line 4.1.18 × Egyptian Balady (29.8 ton/ha), Dwarf Green Long Pod × Line 4.1.18 (28.3 ton/ha), and Egyptian Balady × Dwarf Green Long Pod (27.6 ton/ha) as these crosses had high performance as well as significant and higher estimates of heterobeltiosis for fruit yield per plant and yield attributing other characters.

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“…The existence of less good general combiners, especially for yield and its contributing traits, emphasised the identi cation of appropriate genotypes for further breeding programme to develop superior hybrids in subsequent generations. Tiwari et al (2016) 13 discovered VRO-6 to be a good general combiner for yield per plant, as well as other traits such as rst owering node, days to rst owering, days to 50 per cent owering, days to rst picking, internodal length, days to last picking, number of fruits per plant, and number of branches per plant. Patel et al (2021) 14 discovered just one parent as a good combiner for yield per plant, but Narkhede et al (2021) 15 discovered two.…”

Section: Methodsmentioning

confidence: 99%

“…Das et al (2020) 16 identi ed three lines and one tester as good combiners for total sugar and two lines and one tester for total phenols. Tiwari et al (2016) 13 identi ed three cross combinations as good speci c combiners for yield per plant, number of fruits per plant, ascorbic acid, average fruit weight, days to rst owering, and fruit diameter. The chosen okra genotypes exhibited substantial variability in all of the traits evaluated in this study.…”

Section: Methodsmentioning

confidence: 99%

Exploitation of heterosis and combining ability potential for improvement in okra (Abelmoschus esculentus L.)

Ranga,

Vikram,

Kumar

et al. 2024

Preprint

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The experiment was conducted from 2021 to 2022 at Experimental Farm and Quality Analysis Laboratory, Department of Vegetable Science, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, India to estimate heterosis and combining ability in Okra (Abelmoschus esculentus L.). Okra is an often cross-pollinated crop; therefore, exploiting heterosis is advantageous. The experimental material consisted of an F1 population of 30 crosses obtained from of 10 parental lines crossed with three testers in a Line × Tester mating design, plus a standard check (Punjab-8). Estimates of heterosis (heterobeltiosis and standard heterosis) of the cross combinations UHFO-6 × Pusa Bhindi-5, UHFO-6 × Arka Anamika and UHFO-9 × Arka Anamika were high for majority of the horticultural traits. Significant combining ability effects (GCA and SCA) were resulted from UHFO-6 and UHFO-9 among the parents and UHFO-2 × Pusa Bhindi-5, UHFO-10 × Hisar Unnat and UHFO-2 × Arka Anamika among cross combination. In future, after multi-location trials, these parents and crosses can be released to replace existing okra cultivars (hybrids/varieties).

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Heterosis for yield and its components in okra [Abelmoschus esculentus (L.) Moench]

Cited by 8 publications

References 3 publications

Exploitation of hybrid vigour for fruit yield and its components in okra [Abelmoschus esculentus (L.) Moench]

Exploitation of hybrid vigour for fruit yield and its components in okra [Abelmoschus esculentus (L.) Moench]

Genetic Components Derived Parameters and Heterosis in Okra under Saudi Arabia Conditions

Exploitation of heterosis and combining ability potential for improvement in okra (Abelmoschus esculentus L.)

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