Genetic analysis of yield and yield contributing traits in okra (Abelmoschus esculentus L. Moench)

The generation mean analysis involving six generations (P1, P2, F1, F2, B1 and B2) was carried out to study the nature and magnitude of gene effects for seventeen characters in okra. The study was conducted at Departmental Farm of Department of Agricultural Botany, College of Agriculture, VNMKV Parbhani during Kharif-17 season.
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Genetic analysis of yield and yield contributing traits in okra (Abelmoschus esculentus L. Moench) Int.J.Curr.Microbiol.App.Sci (2021) 10(03): 1037-1047 International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 10 Number 02 (2021) Journal homepage: http://www.ijcmas.comOriginal Research Article https://doi.org/10.20546/ijcmas.2021.1003.131 Genetic Analysis of Yield and Yield Contributing Traits in Okra (Abelmoschus esculentus L. Moench) D. K. Zate1*, L. N. Jawale2, V. N. Shinde3 and A. H. Rathod1 1 Assistant Breeder, B.S.P. unit, V. N. M. K. V, Parbhani, India 2 Sorghum Breeder, SRS, V. N. M. K. V, Parbhani, India 3 Department of Horticulture, V. N. M. K. V, Parbhani, India *Corresponding author ABSTRACT The generation mean analysis involving six generations (P1, P2, F1, F2, B1 and B2) was carried out to study the nature and magnitude of gene effectsKeywords for seventeen characters in okra. The study was conducted at Departmental Farm of Department of Agricultural Botany, College of Agriculture,Okra, Generation VNMKV Parbhani during Kharif-17 season. The Mather’s individualmean analysis,Scaling test, Gene scaling tests and Cavalli’s joint scaling tests were used to detect theeffects, Epistasis presence or absence of the epistatic interactions. The results obtainedArticle Info showed the importance of additive, dominance and all three types of epistatic interactions for most of the crosses and characters viz., plantAccepted:10 February 2021 height, days to first flowering, number of branches per plant, fruit length,Available Online: fruit weight, number of fruiting nodes per plant, number of fruits per plant,10 March 2021 internodal length and yield per plant. For majority of crosses and characters duplicate epistasis was observed while for some crosses complementary epistasis was observed.Introduction as summer season crop with area 532.66 thousand hectare production 6346 thousandOkra (Abelmoschus esculentus L. Moench) is metric tonnes and productivity 12 tonnes/haconsidered as one of the most popular (Anonymous, 2018).vegetable crop grown in the tropical,subtropical, low altitude region of Asia, In this crop all the characters of economicalAfrica, America and warmer region of tropical importance are qualitatively inherited and areMediterranean basin. It is grown commercially dependent on nature and magnitude ofin most of the states of India as Kharif as well heritable variations. Yield ultimately is the 1037 Int.J.Curr.Microbiol.App.Sci (2021) 10(03): 1037-1047final product is the result of complex of distance was kept as 60 cm and 30 cm,several yield contributing traits and being respectivelygovern by polygenes are highly influence byenvironmental fluctuations. The data was recorded on five plants for parents and F1s, ten plants for backcrosses andTherefore, a breeder should have information twenty plants for F2s in each replication. Theon the mode of inheritance and genetic observations were recorded on Plant heightmakeup of yield and it’s yield contributing (cm), Internodal length (cm), Number oftraits. Information of gene actions thus enables nodes on main stem, Number of branches perthe breeder to decide the suitable breeding plant, Days to first flowering.methodology and selection strategy approachfor crop improvement programme. Days to 50% flowering, First fruiting node. Fruit length (cm), Fruit diameter (cm), FruitPartitioning the heritable variations in to weight (gm), Number of ridges per fruit,components is useful to provide information Number of fruits per plant, Marketable fruiton inheritance of these quantitative traits. yield per plant (gm) Yield per plot ( ...