In our study, 24 hybrids obtained by diallel cross between ecotypes of okra were subjected to analysis of their combining ability effects and hybrid vigor for. ABSTRACT. High heterosis values can be obtained using hybrid okra seeds. However, despite high heterotic values, it is very difficult to produce hybrid okra. Studies on Heterosis in Okra (Abelmoschus esculentus (L.) Moench) The results revealed that the standard heterosis for fruit yield per plant was maximum in.

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After pollination, the female flowers were protected with Kraft paper to avoid contamination from insect pollination Nascimento, Overall, the results discussed above indicated the fact that okra hybrid with UAE 22 has great potentialities of maximizing fruit yield while hybrid H and H have the smallest days of flowering.

A traditional method heterosiss currently used in Brazil for large scale production of hybrid okra seeds.

Three hybrid types were obtained from the two hybridization methods: Thirty-eight days after sowing, the seedlings were transplanted to the prepared and corrected soil. Estudos recentes sobre heterose. The leaf length Significant differences in production per plant PP and number of fruits per plant were observed in the different hybrids regardless of hybridization method THM and IHM Table 2.

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The species performs well in tropical regions and is hetefosis well adapted to the tropical regions of Brazil.

Studies on Heterosis in Okra (Abelmoschus esculentus (L.) Moench)

The method consists of emasculation of the female parent followed by manual crosses, leading to high production costs Nascimento, Karnataka Journal of Agricultural Sciences August 29, ; Accepted: With hetwrosis information, heterosis in okra can be exploited regardless of the method used to obtain hybrid sees.

The plants were distributed 1: Similarly, heterotic effects were also found for h of NFP Revista da Agricultura Hybridization can be more confidently confirmed by analyzing a combination of these morphological characteristics from parents and hybrids.

Featuring journals from 32 Countries: We used the expression proposed by Fehr to evaluate the heterosis. Acessado em 23 de janeiro de This strategy guarantees okra seeds of higher physiological quality than seeds produced from the initial phase Purquerio et al. Chemical induction of male sterility and histological studies in okra Abelmoschus esculentus L. This new method was adopted because of the results obtained by Malerbo-Souza et al. Hybrid seeds are extensively used because they provide one hetsrosis the fastest ways to increase productivity Paterniani, Indian Journal of Genetics Breeding Current research has also shown the heterotic potential of hybrid okra seeds in targeting greater productivity Mehta et al.

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This is an open-access article distributed under the terms of the Creative Commons Attribution License. Polystyrene trays cells were filled with a commercial coconut fiber substrate and used to produce seedlings for each line.

International Journal of Biological and Chemical Sciences

Two different methods of hybridization were used: The plants were spaced 1. The most heterotic combinations for number of fruits per plant were those including UAE 22 hegerosis their combination. This result also demonstrates the similarity in the heterosis of the hybrids regardless of hybridization method IHM or THM.

The branches were counted after the last harvest of the experiment. Currently, varieties predominate over hybrid seeds in fruit production.

The objective of this study was to evaluate an experimental methodology of hybridization for production of hybrid seeds of okra. Parents and hybrids differed significantly for gca effect.

Okra Abelmoschus esculentus belongs to the Malvaceae family and originates from Africa. Improving productivity is one of the main goals of crop breeding programs.

Data for each of the agronomic characters were submitted to analysis of variance F test.