Murthi, A N

Van Der Maesen, L J G

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Leaf variants in  pigeon pea Cajanus cajan (L.) Millsp. A. N. MVRTHI and I,. ~ J .  G. VAN UER MAESEN It~frrt~alional Crops Herearch Institutt for the Semi-Arid Tropics, I-11-256, Bt,~unrprt, Hvderubod-500016, A,] ' . ,  Ir~diu Four Iraf bhapc ni t~tnt~~s i n  f:,Ganrrs r q u n  (L.) Millsp. arc dcacribcd, two of' tt~ctn n r w  to litrratur~. 'l'hr mutarlr* w r r r  ol~\rrvrd in t11r world ~crrnplasni collrction arown nrar Hydrrahad. India. ,\ NI:MHER OF Iriif'rn~ttants in pigeon pca, Cajunus cajut~ (I,.) hlillsp., havc been reported. The first to rerortl ;In ol~cordatc mutant was the Deputy 1)irrctor of Agriculture of the erstwhile I{ydcrabad Statr,  in 1936. The sperirnrns (fro111 San~;ircddi) arc preserved in the Krw Hrrbarilr~n \vill~ copies of the correspondenre pertaining lo thcm. I t  wi~s  suggested that this lnutanl I)c drsiynatetl 'IViza~r~ lur'. S INGII  rl 01. (1942) found a mutant in (;or;ikhpur (Uttar Pradesh) having obcordate lealle~.; whirh ;~lzo 11;id hcc and filiform kvrl petals, sytr~rnrtrical wings and light yellow coln~~retl  petals. Hc drscrihcd it crroneollsly as a nrw sprcics, (,'njatrus obrordifolin Singh. Another ml1t;lnt hiiving obcordate leaflets with ~lnited krel petals \ras rrportcd by KAJJAHI (1956) at Annigeri (Karnacak;~).  PNI,IL. (1959) obsc~vcd an obcordate lrallrt plant a t  Niphad (Maharaslitra) in which one ol' the wing petals protruded beyond the starldard at 1)11(1 st;lKr. 'Round' and 'tiny' lcaf mutants have Iwen recorded by PANUYA P l  01. (1!>54) a t  Niphatl. I)IVAI(ARAN and RAMUEI,\I)RAN (1958) notctl oblong-ovate leaflets at Kovilpatti ('ramil Nadu) ant1 oval- oblong leaf mutant was desrril)etl ~ ) ~ J O G I . E K A R  :inrl I ) F . S I ~ M L I K ~ I  (1958) from Nagplrr. In thc process of recording various morpho-agronomic clliiractcrs uf the world collecti~~n of p i ~ c o r ~  pea grown during 1974 and 1975 a t  the I(:liIS:\'l' C:entre near Hyderabatl, India, f i~ur  plants wit11 extraordinary leaf shapes werc itlcntificd (Fi.cure I ) .  Tlie plants were selfed and the selfed seccls wcrc grown during subsequent seasons. T t ~ r  nutnnts wcrc forlr~d to brccd true to their types. Thia rrpnrt describes tlic mutants; inlleritancc is heing at~tdie(l ant1 will be reported later. Two mutants, 'obcordatc' and 'round leaf' (broad-rlliptic), were hilnilar to those reportetl earlier but werc obtainrd fiorrt diffcrcnt sources. The 'ol~cordate' leaf niutant was observetl in 1(:1' 5529 (T-105 frnrn Uttar 0041 32 16!79/0100Rl SO'L.00 R I  1" 1979 ' l ' r o , ~ .  . \ ~ t i r ,  ( ' ~ ~ i ~ ~ i ~ l n c l )  O b r o ~ d r ~ l r  fc,,7l,e1 I'ctiolc 2.4 10 .1.2<rn; t.:tct~i* 1.0 1,) I . , tetn;  p ~ . l i o l ~ ~ l ~ x  2 1,) Strrln. Sti],r,ll;~c: of top Ic;illrt, tr;ict.\; ofsiclr lvatlel\. I I I I  P r ~ ~ r n .  Stil)ttlec 3 1 0  ,I tnm. T.i..tl'arca 12.'Icln? i ; t v r r q r  of 20 fill1 grousn I ra \?<) .  'l'r111 I~-.lllrr ol,cr~rrlalc, 4.8 lo li.3c111 lor~y, 2.8 to 3.2crrt \\iilc; . ip rs  I ~ I I I I ( .  o r  Ips$ rlt,cl~ly eit~nrh.inate, rrlttl,ronatc; I);i\i> r o ~ t r t ~ I ~ - ~ l  lo ri~~tti(lril-c~tr~i-.~lr, Sicl~, lrallcts :~\yrri~tretric;~l, srnallrr tlian top Ii.;iflrt, 3.1% lo 5.7rrrr l o ~ ~ q ,  2.9  lo 3.ncrr1 \%i(lr: al>r.x Ir~ss c t ~ ~ : l r ~ i n a t c  t r ,  ol)lu\c or  t ~ u n c a t ~ . ,  rrlt1rrnn;tlc.; I~ahr ~ ~ o i ~ r r i l r d - a c u ~ i ~ i ~ t ; ~ t e .  It slrnul<l Ihe notvil tlrat in cv. 'N-l$l;t<-k' a t   poor^;^ rac l~ i \  I t . r ~ x t l i  way 7 , 1 ~ o ,  I . C C I I ~ I ~ ~ I L :  it1 cliyilnlely ~~l;ivrcl 1caHr.1~ (I)~.oKAR, 1976). 111 r,mK. .\. I l .  , 1')iO:. '.\ rtucl\ I~~IIII~~~II~.LIII I .  . c r ~ i ~ ~ i ,  I I .~ I~ I~ I I \ I~ ! 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Leaf variants in pigeonpea Cajanus cajan (L.) Millsp

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