Line X Tester Analysis for Combining Ability and Heterosis Breeding in Bottle Gourd (Lagenaria Siceraria (Molina) Standl.]

Abstract

The present invc~tigation "Line " Tesrer unulysis ror combining abili!) nod hctcru\h breeding in bollle gourd [Logeuorio Slcuuria (Molina) Standi.(" \\35 conducred 10 lind out gene action. combining ability variance nnd eflect heterosis. variobilit) hc:ntabolll), genetic ad\~nce. correlation :md path cvci.lkocnt anal~'i' The abo\e paramete/"\ "ere \\Orked out through Ltne \ te~ter anal}"is in,ohmg 10 Line' \i.t.VR-1. VR-2. \'R-J ,\R-4, \'R-5. \' R-6. \'R-7. \'R-8. VR-9, VR-1 0 and S I esler- iz.lo~A SHIGA:O.:GA.PBOG-IOSarcndra r.l\mo. pu~a na\ccn. All the 50F, hybrids \\ilh parents "ere gro"n in a Randomized 131ocl\ Design (RBO) ''ith three replication at flonkuhure Research Cemer. Sardar Vallabhhhai Patel Univer,it} of Agricullurc &Tech nolo!!.). Meerur. ri~e planrs "ere random I} sele.:tcd lor rc:cordinj! ohscl\ation in each parent and I • h)brids. The spacing \\U> m.1intaincd ar one meter bc:I\\C:cn plant to plam and two meter on ro\\ to ro\\ The dara "ere recorded tor ten quanlitativc churocters naonel; Days to gcm1inution. Day~ '" fruit sening. fruir lcngrh ("n). Fruit diamc:tc1 (em). Number of branche~ per plant, Vine lcngth(m). \lumhcr of seed' per fruit. \lumber of fruits per plant. Days to maturit) and fruit )'ield per plan! lhe ma\imum negative direct cflect of days to germinarion on fruil ) oeld per plant \\ih vb~"cd. I he: residual elli:ct of0.1).144 C:\pressed thai onl) IC" characrer. \\C:re best tbr ''ud) in me p.1rent \Jriabilizali\10. lne path coenicienl anal)sb phenot)pic lc:\el revealed ma\imum po>~tl\c direct efii:cl ol da)S to fruit >ening and the ma\imum negative direct dli.-.;r of d•l}' lo germinarion. lhc combining abilil) highl} signilkanr am1>ng temales in g.:a tor ~II mctri, tr.urs c\cept ~umber ofbranchc> per planr an.J Vine lenglh(ml. \ariancc among male p.1rc111' in re>pe\:t to gca was highl) signilic:u11 for Days to germmalion. Da)s t<' fruit sening. Fn1it lcnglh,(cm) rruir diameter(cm). Number ot ~ecoh per fruil. Da}> to matur>t) ~n.J Fru>l \o,·ld per plant. rhe be'l heterosis response: li>r lruot )oeld and other 'ignilicanr oncn:asc mer hulh hener and mid parent. These cross coonbin;llion VR-2XI'US1\ NA VEEN. VR-2.'( Pl..,\ NAVCEN. the ba,is of mean and 'pecilic ~ombonong abilll} eHec1. tl1c cr'"' combonJIInn namt:I)VR-SXIHBG-J.\'R-10\NAREI\DR.-\ an.J VR-7:\ PlSA NAVECN 1\(tc tound hc'l combiner> lor truit yield p~r plant. The cro"r' like VR-7\ h..·\SIIIGA:'\C. \. \ R I\ h.N.,III G.-\NGA.VR·5X KASHIGANG'\. VR-6:\ f'liS•\ NAVLIN and VR-:?X Pll'> \:\\VII' "ere also identified superior combination lor yici.J as \\ell u' lor other chatJCit'r> .olso 1hu,, best eros~ combination rna) be utilized b3> commercial h) brid ufler further c\aluali<'n.