HETEROSIS IN OKRA PDF


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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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The plants were distributed 1: Bangladesh Journal of Agricultural Research Data for each of the agronomic characters were submitted to analysis of variance F test. Parents and hybrids differed significantly for gca effect.

International Journal of Biological and Chemical Sciences

Improving productivity is one of the main goals of crop breeding programs. This is an open-access article distributed under the terms of the Creative Commons Attribution License. Indian Journal of Agricultural Science We used the expression proposed by Fehr to evaluate the heterosis.

August 29, ; Accepted: After extraction, the seeds were placed in pre-labeled Kraft paper bags and stored. In fact, there is little research on economical ways of producing hybrid okra seeds. The method consists of emasculation of the female parent followed by manual crosses, leading to high production costs Nascimento, Genetic important yield components in bhindi.

Study on heterosis and combining ability for earliness and yield parameters in okra Abelmoschus esculentus L. Desafios e perspectivas para hetrosis cadeia brasileira do tomate para processamento industrial.

The new hybridization method IHM consisted of emasculating the female flowers and then allowing pollination to occur via insects that were naturally present at the experiment site. Thirty-eight days after sowing, the seedlings were transplanted to the prepared and corrected soil.

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These inbred lines were obtained from three selection cycles. Before transplanting, the soil was plowed and harrowed twice and analyzed and corrected for specific crop requirements. An understanding ookra the morphological characteristics of parents male and female and the consequent hybrids is useful in plant breeding.

Two different methods of hybridization were used: A traditional method is currently used in Brazil for large scale production of hybrid okra seeds. Conversely, mean fruit diameter High heterosis values can be hererosis using hybrid okra seeds.

Chilean Journal of Agricultural Research Hybridization can be more confidently confirmed by analyzing a combination of these morphological characteristics from parents and hybrids. The five treatments were sown on November 21, ookra Chemical induction of male sterility and histological studies in okra Abelmoschus esculentus L.

Heterosis in okra hybrids obtained by hybridization of two methods: traditional and experimental

At the end of the cycle, morphological characterizations was done of the leaves pubescence, length and width and fruit length, diameter and shape.

Hybrid seeds are more expensive than varieties; however, hybrid plants are more productive and produce greater income Medagam et al. Traditional hybridization method THM consisted of emasculating the female parent flowers to expose the flower stigma before anthesis and eliminate the presence of pollen.

Abstract In our study, 24 hybrids obtained by heterosos cross between ecotypes of okra were subjected to analysis of their combining ability effects and hybrid vigor for different important traits for producers and consumers. The number of branches per plant was statistically different between the genotypes evaluated in our study. Higher costs have limited greater exploitation of the heterotic potential of okra hybrids and reduced seed availability for growers.

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Studies in Hibiscus esculentus Okra I. Heterosis for yield and yield components in okra.

Studies on Heterosis in Okra (Abelmoschus esculentus (L.) Moench) [2010]

However, despite high heterotic values, it is very difficult to produce hybrid okra seeds. Twelve plants were planted per plot and spaced 1 m between plants and 1. Services on Demand Journal. Revista da Agricultura In fact, the hybrids obtained in this study showed superiority to their parents regardless of the hybrid seed production method Table 2.

The fruits were harvested every three days from February 2, until June 27,totalling 41 harvests. These advantages have already been shown by others Mehta et al. This new method was adopted because of the results obtained by Malerbo-Souza et al.

Chromossome and pollen studies. The leaf length This experiment was set up in randomized blocks design RBD hetterosis four replications and used the following statistical model: Featuring journals from 32 Countries: The plants were spaced 1. Indian Journal Agriculcural Sciences Log in or Register to get access to full text downloads. The objective of this study was to evaluate an experimental methodology of hybridization.

Polystyrene trays cells were filled with a commercial coconut fiber substrate and used to produce seedlings for each line. The highest depression non heterobeltiosis was observed in hybrids with combination including H19 for number of seeds per fruit. Production per plant