General combining ability gca was highly significant. The greenish yellow edible oil has a pleasant taste and odor, and is high in unsaturated fats such as oleic acid and linoleic acid. The study of heterosis would help in selection of heterotic crosses for. In okra abelmoschus esculentus l moensch, heterosis over the midparental values was manifested in all the characters studied. Studies on heterosis in okra abelmoschus esculentus l moench.
Okra as a valuable vegetable of the world 105 ratar. Okra alone is generally considered too gooey, or mucilaginous, to suit american tastes. Okra oil is a pressed seed oil, extracted from the seeds of the okra. The results revealed wide range of heterotic pattern for different traits. Only 3 to 4 days are required from the time the okra flower opens until the pod reaches harvest maturity.
It is also fried and served as a side dish or as part of a salad. Scientific communication heterosis in okra hybrids obtained by hybridization of two methods. Currently, varieties predominate over hybrid seeds in fruit production. Introduction molecular studies on okra yellow veins mosaic virus oyvmv biotypes page 1 chapter 1 introduction 1 introduction. Heterosis studies in okra abelmoschus esculentus l. Abstract medicinal plants are the natures gift to human being to have diseasefree healthy life. Okra, heterosis breeding, line x tester analysis, okra breeding okra abelmoschus esculentus l. Iorlamen3 1,3department of crop production, university of agriculture, makurdi, nigeria.
Heterosis for yield and yield components in okra abelmoschus. However, the sca variances were higher in magnitude than respective gca variances for all the characters and the potence ratio less than unity for all the characters suggested preponderance of nonadditive gene action for all the traits and emphasized the utility of hybrid breeding approach to exploit existing heterosis in okra. Studies on the combining ability and heterosis in okra abelmoschus esculentus moench l. Preserving okra extension programs and employment are available to all without discrimination. Madaria2 main oilseeds research station, junagadh agricultural university, junagadh gujarat india abstract heterosis for pod yield and its components was studied in a set of line x tester crosses of 8 lines and. File powder dried sassafras leaves that have been ground into a fine powder can be used in place of okra to thicken gumbo. Okra is an important vegetable as its contribution to ghanas agricultural gross domestic production g. It is cultivated for the pods, which are harvested in the immature stage and used in salads, soups and dishes. Major problem in okra cultivation is lack of high yielding. A set of 45 genotypes including 8 females, 4 males, their 32 resultant hybrids and one commercial check variety gao5 were sown during kharif 2012 at vegetable research scheme, regional horticultural research station, navsari agricultural university, navsari to study the magnitude of heterosis using line x tester analysis for twelve characters.
In recent years, however, it has become an important commercial crop in certain localities in the south, where thousands of tons of the pods are grown for the large soup companies. Okra is used in gumbo both for flavor and as a thickener. Estimation of hybrid vigour for fruit yield and quality traits of okra. The pods were brought to the us by ethiopian slaves. Okra is best when purchased fresh but it is available canned and frozen. I ordered ground okra on line and tried it in a gumbo along with a light roux. Jbar diallel analysis heterosis single cross maize hybrids. Introduction in india, the yield potential of okra is low with straight varieties 10. However, the exploitation of hybrid vigour in okra has been recognized. The present production is inadequate to meet the requirements of the country for both domestic and export market. However, it adds a flavor similar to root beer to the gumbo. Heterosis in okra hybrids obtained by hybridization of two methods. We evaluated fruit production per plant, fruits per plant, number of branchess per plant, superiority of hybrids relative to parents h and heterosis %. To study heterosis in okra material and method fifteen f 1 hybrids derived from 6 varieties of abelmoschus esculentus were grown during the summer of 1986.
With this information, heterosis in okra can be exploited regardless of the method used to obtain hybrid sees. The mean squares of the genotypes were highly significant except plant height cm and pod length cm. The oil content of the seed is quite high at about 40%. These advantages have heferosis been shown by others mehta et al.
Pdf heterosis and combining ability for yield traits in. The geographical origin of okra is disputed, with supporters of west african, ethiopian, and south asian origins. Okra is a multipurpose crop due to its various uses of the fresh leaves, buds, flowers, pods, stems. A field experiment was undertaken to study heterosis and combining ability studies on yield and quality parameters in okra abelmoschus esculentus l. Soil preparation work the soil only when it is dry enough not to stick to garden tools. Agronomic traits of okra cultivars under agroclimatic. Open access library journal how to cite this paper. Hamid6, abdul waheed7, syed asghar8, muhammad shirin khan9 1,5,8,9 agricultural research station, baffa, mansehra, khyber pakhtunkhwa, pakistan. Moench is important member of malvaceae and commonly known as okra in india. The key to maintaining okra production continuously throughout the summer is to harvest regularly. If you continue browsing the site, you agree to the use of cookies on this website. Line tester analysis of combiningabilitv and heterosis for some economic characters in okra. Be very careful with dried ground okra as it only takes a little bit to go a long way. Heterosis is one of the greatest practical achievements of plant breeding and has been extensively used in crop improvement in okra.
Okra can grow to around 75cm wide and 120180cm tall. Not only 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. However, npk fertilizer is very expensive and therefore increases cost of production. Okra is native to the tropics of the eastern hemisphere and is widely cultivated in the tropics and subtropics of the western hemisphere. Hybrids are very much popular in this crop and the hybrid seed production is based. Pdf heterosis in okra hybrids obtained by hybridization. Agronomic traits of okra cultivars under agroclimatic conditions of baffa kpk, pakistan zobia naheed1, aftab ayyaz2, adil rehman3, noor alam khan4, sahibzada qayyum ahmad5, f. Okra fruit contains 2050, oval, smooth, dark green to dark brown seeds. For good yields, okra must grow in full sunlight in fertile, welldrained soil. Okra abelmoschus esculentus are known in many englishspeaking countries as ladys fingers or gumbo is a flowering plant in the mallow family, related to cotton and hibiscus. Varietal performance and correlation of okra pod yield and. Studies on the combining ability and heterosis in okra. Iqra ibrar1, muhammad hammad nadeem tahir2, azhar mehmood1 and muhammad rizwan bashir3 download pdf file. Okra abelmoschus esculentus l is commonly known as bhindi or ladys finger belonging to family malvaceae.
Joe masabni department of horticulture texas agrilife extension service varieties burgundy, cajun delight, clemson spineless, dwarf green long pod, emerald, lee, louisiana green velvet, silver queen soil preferences well drained sandy soils with ph 6. On the basis of his experiments beal 18771882 concluded that f 1 hybrids yield as much as 40 percent more of the parental varieties from subsequent studies on intervarietal crosses in maize, it was observed that some of the hybrids show heterosis. Advise to experiment with a measuring cup of water til you get the consistency you like before adding to gumbo. Moench with the objectives of identifying the general combining ability of parents and specific combining ability of crosses and to assess the magnitude of heterosis for yield and yield related. Estimation of heterosis in okra abelmoschus esculentus for fruit yield and its components using line. Breeding methods for vegetables, self, cross and asexually propagated crops slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Determination of heterosis through genetic analysis for some morphological and yield attributes of indian mustard brassica juncea l. Moench the results revealed that the standard heterosis for fruit yield per plant was maximum in. Evidence of noncompliance may be reported through your local extension office. Heterosis and nature of gene action in okra abelmoschus.
Literature references on common okra have to be interpreted with care because they may include information related to. Hossain krishi vigyan kendra, uttar banga krishi viswavidyalaya, kalimpong734301, darjeeling 1 department. However, despite high heterotic values, it is very difficult to produce hybrid okra. Field irrigation experiments were conducted to assess the varietal performance and correlation of pod yield and yield attributes under irrigation at the teaching and research farm, university of maiduguri, nigeria, during the 2015 and 2016 dry seasons. Okra, a herbaceous hairy annual plant of the mallow family and its edible podlike fruits. Fruits of abelmoschus esculentus are cylindrical to pyramidal, whereas fruits of abelmoschus caillei are ovoid. Moench higher costs have limited greater exploitation of the heterotic potential of okra hybrids and reduced seed availability for growers. 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. High estimates of heterosis obtain in hybrid combinations revealed considerable genetic divergence among. Muawiyah governed the geographically and politically disparate caliphate, which now spread from north africa in the west to afghanistan in the east, by strengthening the power of his allies in the newly conquered territories. The tender unripe fruits are commonly cooked as a vegetable.
Fruit is elongated, conical capsule, comprising 5 cavities containing ovules. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Moench cultivars for dry season production in the southern guinea savanna ecology of nigeria g. For this reason, okra must be harvested at least every other day. Evaluation for heterosis in okra abelmoschus esculentus l. Studies on heterosis in okra abelmoschus esculentus l. Though native of tropical africa, it is a prized vegetable of india. Pdf estimation of heterosis in okra abelmoschus esculentus for. Okra simple english wikipedia, the free encyclopedia.
Morphological characterization and agronomic evaluation of. Substitutes, ingredients, equivalents gourmetsleuth. High heterosis values can be obtained using hybrid okra seeds. Moench, 2n 2x is a fast growing annual herb the young seed pods of which are used as a common vegetable. After extraction, the seeds were placed in prelabeled kraft paper bags and stored. Darwin 1876 also reported that inbreeding in plants results in deterioration of vigour and the crossing in hybrid vigour. Azzuhri stated that muawiya led the hajj pilgrimage with the people twice during his era as caliph. Amaryl lids to download pdf you need some things, like my website and the name of the file. If you do not have file powder available, cornstarch or flour can be used in place of okra as a thickener. Okra abelmoschus beterosis belongs to the malvaceae family and originates heterosos africa. Abelmoschus esculentus nilesh jain1, ruchi jain1, vaibhav jain1 and surendra jain1 1sagar institute of research and technology pharmacy, sirt campus, ayodhya bypass road, bhopal, madhya pradesh, india.
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