Among the testers, pusa sawani was found to be the best general combiner for yield and most other characters, whereas pusa. Moench was carried out with six lines and three testers, to estimate the heterosis for ten characters. Combining ability for yield and yield components through. Introduction okra is a flowering plant of the mallow family. Prepare the bed by turning the soil under to a depth of 8 inches. Line x tester analysis for heterosis in okra abelmoschus esculentus l. Agricultural technology 2010 university for development studies, tamale. The crosses with nonsignificant standard heterosis in any given direction for total yield per plant c42, c31, c35, c25, and. Familiarizing working environment of windows 7 operating system 4. The best okra, like almost all vegetables, is young and fresh right out of the garden. Genetic diversity analysis of okra genotypes using morphological markers davinder singh, b. It is an important fruit vegetable crop cultivated in various states of india. Pdf the present investigation on line x tester analysis was conducted in okra to study the magnitude of heterosis for thirteen plant traits including. Moench is one of the important springsummer and rainy season vegetable crops grown chiefly for its tender green fruits for consumption.
Heterobeltiosis and combining ability for earliness in okra abelmoschus esculentus l. Okra, heterosis,and,combining,ability,analysis epub book created date. The high yielding varieties in okra has been developed by exploiting. Botany of okra bhendi okra abelmoschus esculentus l moench.
The mean squares of the genotypes were highly significant except plant height cm and pod length cm. The objective of the study was to evaluate the heterosis in okra leaf cotton hybrid f1s, which were developed by crossing two sterile near isolines and three restorer near isolines. The parents and crosses for number of fruits per plant, total yield and. Several species of the genus abelmoschus are grown in many parts of the world among them. The present investigation was carried out to study combining ability of yield and related. Download okra countdown timer that comes with support for preset time values and different colors, and allows you to shut down or restart the computer, log off the current user, lock the. Students can download bio botany chapter 9 plant breeding questions and answers, notes pdf, samacheer kalvi 12th bio botany book solutions guide pdf helps you to revise the complete tamilnadu state board new syllabus and score more marks in your examinations. Traditional and experimental article pdf available in horticultura brasileira 351. Major problem in okra cultivation is lack of high yielding. It is grown in many countries and cultivars from different countries have certain adapted distinguishing characteristics specific to the country to which they belong. Evidence of economic heterosis and genetic control of fruit. Okra is an important vegetable as its contribution to ghanas agricultural gross domestic production g. Studies on heterosis in okra abelmoschus esculentus l moench.
Maximum heterosis was observed for the cross okra x bt 28. Pdf book okra heterosis and combining ability analysis author. Higher costs have limited greater exploitation of the heterotic potential of okra hybrids and reduced seed availability for growers. Heterosis in okra hybrids obtained by hybridization of two methods. Combining ability and heterosis studies for yield and its. Okra is in the hibiscus family, and has very pretty yellow flowers. Hossain krishi vigyan kendra, uttar banga krishi viswavidyalaya, kalimpong734301, darjeeling 1 department of genetics, 2 department of seed science and technology. There has been a progressive increase in area and production of okra in pakistan. Botany of okra bhendi indian institute of technology. Issn 0975928x research article studies on heterosis in okra.
Centres of origin, plant biodiversity and its conservation. The greenish yellow edible oil has a pleasant taste and odor, and is high in unsaturated fats such as oleic acid and linoleic acid. Buy heterosis breeding in okra abelmoschus esculentus l. Study on heterosis and combining ability for earliness and yield parameters in okra abelmoschus esculentus l.
Issn 0975928x research article studies on heterosis in. Ec 329380showed high heterosis over better parent and standard check for pod yield 82. Leaf shape is an important factor affecting canopy structure, photosynthetic characteristics, and yield. Plant 34 seeds every 12 inches in rows 36 inches apart. Studies on the combining ability and heterosis in okra. The hybrid l 6 x t 2 mohanoor local x parbhani kranti and l 1 x t 3. Moench a thesis submitted to the department of nuclear agriculture and radiation processing college of basic and applied sciences university of ghana by amitaaba theophilus id. Origin of okra pdf the geographical origin of okra is disputed, with supporters of west african, ethiopian, and south asian origins.
Studies on heterosis in okra abelmoschus esculentus l. Cotton is the most important economic plant belonging to the mallow family. The mean squares of the genotypes were highly significant except plant height cm and. Pdf heterosis in okra hybrids obtained by hybridization. A line x tester analysis in okra abelmoschus esculentus l. P1ic282248, p2ic27826a, p3ic29119b, p4ic398a, p5ic45732, p6ic89819, pyic89976, p8ic90107, p9ic99716. Relationship between phenotypic and marker distances. Download mathematical theory of nonblocking switching networks the 2nd edition 5. This hybrid recorded high standard heterosis for all the characters except number of branches perplant and individual. The results revealed that the standard heterosis for fruit yield per plant was maximum in the hybrid mdu 1 xhissar unnath, with a value of 65. It is perennial plant but mostly cultivated as annual its immature green seed pods is eaten as a vegetable it is known in many englishspeaking countries as ladies fingers or ochro. High heterosis values can be obtained using hybrid okra seeds. Heterobeltiosis, standard heterosis, line x tester and okra introduction okra abelmoschus esculentus l. Hossain krishi vigyan kendra, uttar banga krishi viswavidyalaya, kalimpong734301, darjeeling 1 department.
Troubleshooting computer viruses by using an antivirus software 5. Genetic variability and diversity in okra abelmoschus. Okra is one of the most popular vegetables in late 20th century japanese cuisine. The heterosis over better parent for yield per plant was mainly due to longer and thicker fruits coupled with more number of fruits per plant. Moench the results revealed that the standard heterosis for fruit yield per plant was maximum in. Okra slices show the pentagonal crosssection of the fruit. Line x tester analysis for heterosis in okra abelmoschus. Okra is native to the tropics of the eastern hemisphere and is widely cultivated in the tropics and subtropics of the western hemisphere.
Andhra pradesh, west bengal, bihar, orissa, maharashtra, and gujarat are important okra producing states. The present production is inadequate to meet the requirements of the country for both domestic and export market. This hybrid recorded high standard heterosis for all the characters except number of branches per. Evidence of economic heterosis and genetic control of fruit yield and yellow vein mosaic virus disease severity traits of okra ten diverse genotypes of cultivated and wild species were crossed in half diallel fashion to produce 45 f1 hybrids to determine mode of gene action, extent of economic heterosis and dominance effect, and to estimate combining ability for eight quantitative traits. Level with a rake to remove clumps of grass and stones. Emasculation and pollination processes are easier due to large flower and monoadelphous stamens. Introducing okra leaf shape is considered an important strategy in cotton heterosis breeding. Evidence of economic heterosis and genetic control of. Heterosis breeding in okra abelmoschus esculentus l. Fiber okra contains is a valuable nutrient for intestine microorganisms. 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. The tender unripe fruits are commonly cooked as a vegetable. Gumbo is believed to be a corruption of a portuguese corruption, quingombo. These promising crosses could be used for constitution of okra hybrids.
Jan 18, 2019 heterosis in okra hybrids obtained by hybridization of two methods. This is an often crosspollinated crop showing 419% cross pollination. However, the exploitation of hybrid vigour in okra has been recognized. Pdf book okra heterosis and combining ability analysis. Estimation of heterosis in okra abelmoschus esculentus for fruit yield and its components using line. Genetic diversity analysis of okra genotypes using.
Evidence of economic heterosis and genetic control of fruit yield. Moench is one of the most important vegetable crops grown extensively throughout the country during both summer and rainy. Heterobeltiosis, inbreeding depression and heritability study in okra. Sreeparvathy department of genetics and plant breeding, faculty of agriculture, annamalai university, annamalai nagar608002. Okra ensures recovery from psychological and okra is. Gumbo is also the name of a stew that usually contains okra okra grows in an elongated, lantern shape vegetable. With hetwrosis information, heterosis in okra can be exploited regardless of the. Sow okra seeds in full sun and average, wellworked soil after danger of frost.
Okra is one of the important vegetables grown in india during both summer and rainy seasons. However, overdominance was observed only for days to first flowering, fruit length, plant height, fruit weight and yield per plant. An experiment was carried out with twelve parental lines of okra viz. Jaiprakashnarayan r, prashanth sj, mulge r, madalageri mb 2008. Heterosis for yield and yield components in okra abelmoschus. Heterosis in yield, fiber quality, and photosynthesis of okra. Samacheer kalvi 12th bio botany solutions chapter 9 plant. Heterosis studies in okra abelmoschus esculentus l. Pdf heterosis study in okra abelmoschus esculentus l. Okra ensures recovery from psychological and okra is an effective remedy for ulcers and joint.
Okra, a herbaceous hairy annual plant of the mallow family and its edible podlike fruits. Numerous studies have aimed at assessing the relationships between i distances computed from phenotypic data, ii distances computed from marker data and iii heterosis, for pairs of. Studies on the combining ability and heterosis in okra abelmoschus esculentus moench l. Self incompatibility and male sterility, their classification and application in crop improvement principles of breeding in selfpollinated crops, pure line selection, mass selection, heterosis breeding, hybridization. Okra leaves may be cooked in a similar manner as the greens of beets or dandelions.
Amaryl lids to download pdf you need some things, like my website and the name of the file. The presence of variations among four lines of okra and their hybrids for various traits was investigated in this study. All the characters studied indicated the scope for heterosis breeding in crop improvement in okra. Okra belongs to family malvaceae with 2n8x72 or 144 chromosomes and is polyploidy in. Okra grades and standards agricultural marketing service. Heterosis and nature of gene action in okra abelmoschus. Pdf downloads current agriculture research journal. Agalodiya 5 1 department of genetics and plant breeding, cpca, sdau. Breeding of vegetable tuber and spice crops icar ecourse. Larm1, ic282280, ic282337, ic 128891, ic111527, ec329380, ic 282279, vro5, ic329422, ic18537, hisar. The results revealed that the standard heterosis for fruit yield per plant was maximum in the hybrid mdu 1 x hissar unnath, with a value of 65.
Heterosis leads to increase in yield, reproductive ability. Introduction in india, the yield potential of okra is low with straight varieties 10. In okra abelmoschus esculentus l moensch, heterosis over the midparental values was manifested in all the characters studied. Sharma and yash paul mahajan department of vegetable crops, landscaping and floriculture, punjab agricultural university, ludhiana india received 5 december 1977. Shanmugasundaram and sreerangaswamy reported heterosis of 20 hybrids in blackgram which were generated from a 5 x 5 diallel analysis and revealed that out of 20 hybrids, 18 showed heterosis ranging from 34. Heterosis, heterobeltiosis, line x tester mating design, okra how to cite this paper. Okra abelmoschus esculentus l is commonly known as bhindi or ladys finger belonging to family malvaceae. In this genus belong many species of ornamental flowering hibiscus, several of which are natives of the united states. Moench 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. Pdf file from darkness to light how i encountered jesus christ 4. Okra is a multipurpose crop due to its various uses of the fresh leaves, buds, flowers, pods, stems. Jul 04, 2015 maximum heterosis was observed for the cross okra x bt 28.
High estimates of heterosis obtain in hybrid combinations revealed considerable genetic divergence among the parental lines. This hybrid recorded high standard heterosis for all the characters except number of branches perplant and individual fruit weight. The crosses with nonsignificant standard heterosis in any given direction for total yield per plant c 42, c 31, c 35, c 25, and c 36 8. Okra is a seed propagated hot weather crop sensitive to frost, low temperature, and waterlogging as well as drought conditions. Okra heterosis and combining ability analysis kindle ebook feb, 2020 alexander pushkin public library. When selecting fresh okra, be sure to choose the pods that are bright green and firm. The geographical origin of okra is disputed, with supporters of west african, ethiopian, and south asian origins. Pdf heterosis and combining ability for yield traits in. Grow okra in a different place every year to avoid problems with pests and diseases. Okra poses no threat to the organism, causes no addiction. Forty five f1s were developed by crossing 10 elite lines of okra. Okra is also known as lady fingers, gumbo and, in south asia, india, nepal and some other countries, as bhindi and, less commonly, bamia and bindi.
The oil content of the seed is quite high at about 40%. Gene action studies on yield and quality traits in okra. Evidence of economic heterosis and genetic control of fruit yield and yellow vein mosaic virus disease severity traits of okra ten diverse genotypes of cultivated and wild species were crossed in half diallel fashion to produce 45 f1 hybrids to determine mode of gene action, extent of economic heterosis and dominance effect, and to estimate. It has high nutritive value and also possesses export potential. Evidence of economic heterosis and genetic control of f. Apr 18, 2015 andhra pradesh, west bengal, bihar, orissa, maharashtra, and gujarat are important okra producing states. Download fulltext pdf download fulltext pdf download fulltext pdf heterosis and combining ability for yield traits in okra abelmoschus esculentus l. Along with roux, okra is the normal thickening agent in gumbo. Get your kindle here, or download a free kindle reading app. Scientia horticulturae, 9 1978 111118 111 elsevier scientific publishing company, amsterdam printed in the netherlands line tester analysis of combiningability and heterosis for some economic characters in okra b. The study of heterosis would help in selection of heterotic crosses for commercial exploitation of f1 hybrids in okra abelmoschus esculentus l. However, despite high heterotic values, it is very difficult to produce hybrid okra. It is unlikely that your local grocery store carries fresh okra, but it can be found more easily in specialty stores and farmers markets.
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