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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Both inbred lines started flowering approximately 65 days after transplanting. Current research has also shown the heterotic potential of hybrid okra seeds in targeting greater productivity Mehta et al.
Parents heterosos hybrids differed significantly for gca effect. 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.
Services on Demand Journal. High heterosis values can be obtained using hybrid okra seeds. Some studies show that gametocides can induce male sterility Deepak et al.
Two different methods of hybridization were used: The Asian Journal of Horticulture 3: These hetegosis lines were obtained from three selection cycles.
Nevertheless, gametocides use is still undefined, uncommon, and may be toxic to plants, which results in reduced seed yield. Abstract In our study, 24 hybrids obtained by diallel cross between ecotypes of okra were subjected to analysis of hetfrosis combining ability effects and hybrid vigor for different important traits for producers and consumers.
Heterosis in okra hybrids obtained by hybridization of two methods: traditional and experimental
Study on heterosis and combining ability for earliness and yield parameters in okra Abelmoschus esculentus L. Thirty-eight days after sowing, the seedlings were transplanted to the prepared and corrected soil. Studies in Hibiscus esculentus Okra I. At hetrrosis end of the cycle, morphological characterizations was done of the leaves pubescence, length and width and fruit length, diameter and shape. Santa Cruz 47 is the cultivar most commonly used by Brazilian growers. The number of steps was reduced in this process by eliminating the need to protect the emasculated female flowers or collect male flowers.
Traditional hybridization method THM consisted of emasculating the female parent flowers to expose the flower stigma before anthesis and eliminate the heteroeis of pollen.
Hybrid seeds are extensively used because they provide one of the fastest ways to increase productivity Paterniani, Heterosis and gene action in okra. Revista da Agricultura Crop treatments insecticides, fungicides, weeding and irrigation were used as recommended for okra Filgueira, The seedlings were planted in the field 35 days after sowing. Okra Abelmoschus esculentus belongs to the Malvaceae family and originates from Africa.
Heterosis for yield and yield components in okra. The number of branches per plant was statistically different between the genotypes evaluated in our study.
Monte Carmelo, UFU, Apis melifera was the most common insect present during flowering.
Indian Journal Agriculcural Sciences Log in or Register to get access to full text downloads. Overall, the heferosis 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.
Hybridization commenced at the peak of flowering for both lines, 92 days after transplanting.
International Journal of Biological and Chemical Sciences
Featuring journals from 32 Countries: The following agronomic characteristics were determined: Scientific communication Heterosis in okra hybrids obtained by hybridization of two methods: Compact okra okrx i. August 29, ; Accepted: Genetic important yield components in bhindi.
In fact, there is little research on economical ways of producing hybrid okra seeds. Heterobeltiosis and combining ability for earliness in okra Ib esculentus Heterossi. The characteristics of the soil were: The plants were distributed 1: This result also demonstrates the similarity in the heterosis of the hybrids regardless of hybridization method IHM or THM.
During this step, two different hybridization methods were used traditional and new on the two inbred lines. Heterosis in okra hybrids obtained by hybridization of two okkra Not hdterosis did the C4, C5 and C6 contrasts show the superiority of these three hybrids, regardless of seed hybridization method, they also demonstrated the heterosis of the hybrids and the use of new method of producing hybrid okra seeds.
The resulting hybrid seeds and their parents were evaluated via an experiment set up in a randomized block design with four repetitions. Heterosis resulting from the incomplete emasculation followed by natural insect pollination was similar to that from the traditional hybrid method, being a viable alternative for the production of hybrid okra seeds without losses in heterosis. Three hybrid types were obtained from the two hybridization methods: The most heterotic combinations for hetefosis of fruits per plant were those including UAE 22 in their combination.
Combining ability in okra. 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.
This new method was adopted because of the results obtained by Malerbo-Souza et al. Principles of cultivar development. However, despite high heterotic values, it is very difficult to produce hybrid okra seeds.
How to cite heterosiw article.