HETEROSIS IN OKRA PDF

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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Conversely, mean fruit diameter The branches were counted after the last harvest of the experiment. Chromossome and pollen studies. The objective of this study was to evaluate an experimental methodology of hybridization for production of hybrid seeds of okra. The leaf length Ten plants per plot were evaluated.

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

After extraction, the seeds were placed in pre-labeled Kraft paper bags and stored. The plants were distributed 1: Higher costs have limited greater exploitation of the heterotic potential of okra hybrids and reduced seed availability for growers. Genetic important yield components in bhindi. Combining ability in okra.

This is an open-access article distributed under the terms of the Creative Commons Attribution License. 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. This strategy guarantees okra seeds of higher physiological quality than seeds produced from the initial phase Purquerio et al.

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The five treatments were sown on November 21, Before transplanting, the soil was plowed and harrowed twice and analyzed and corrected for specific crop requirements. After pollination, the female flowers were protected with Kraft paper to avoid contamination from insect pollination Nascimento, Two different methods of hybridization were used: Similarly, heterotic effects were also found for h of NFP How to cite this article.

Studies in Hibiscus esculentus Okra I. Log in or Register to get access to full text downloads. Novo manual de olericultura. Indian Journal Agriculcural Sciences Revista da Agricultura Scientific communication Heterosis in okra hybrids obtained by hybridization of two methods: With this information, heterosis in okra can be exploited regardless of the method used to obtain hybrid sees.

Santa Cruz 47 is the cultivar most commonly used by Brazilian growers. Thus, the traditional and more labor intensive okra seed hybridization method THM can be reliably replaced by the less labor intensive method IHM without any loss in heterosis.

Indian Journal of Agricultural Science Production per plant A traditional method is currently used in Brazil heterois large scale production of hybrid okra seeds.

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

Twelve plants were planted per plot and spaced 1 m between plants and 1. The regional climate is humid temperate with hot summers and dry winters. Some reports show that the number of fruits per plant is related to the action of other types of gene actions such as epistatic additive x additive that allow transgressive segregation Kulkarni et al. The method consists of emasculation of the female parent followed by manual crosses, leading to high production costs Nascimento, Some studies show that gametocides can induce male sterility Deepak et al.

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This new method was adopted because of the results obtained by Malerbo-Souza et al.

Hybrid seeds are extensively used because they provide one heteroeis the fastest ways to increase productivity Paterniani, Three hybrid types were obtained from the two hybridization methods: High heterosis values can be obtained using hybrid okra seeds. The fruits were harvested every three days from February 2, until June 27,totalling 41 harvests.

International Journal of Biological and Chemical Sciences

The number of branches per plant was statistically different hetersois the genotypes evaluated in our study. This experiment was set up in randomized blocks design RBD with four replications and used the following statistical model: We used the expression proposed by Fehr to evaluate the heterosis.

Bangladesh Journal of Agricultural Research Karnataka Journal of Agricultural Sciences The Asian Journal of Horticulture 3: Despite the superior genetic potential of hybrid okra seeds, seed production remains an obstacle. Thus, the entire experiment covered ookra 2. Next, pollen from the male parent was moved by hand to the stigma of the previously emasculated female flower.

Apis melifera was the most common insect present during flowering.