Bueil, H

Dwivedi, S L

Nagabhushanam, G V S

Nigam, S N

Ranga Rao, D V

Ranga Rao, G V

Reddy, D V R

Wightman, J A

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Development of Improved Cultivars wit.h Multiple Resistance to Insect Pests and llud Necrosis Virus and its Vector S.L. Dwive<ii, (;.v. 1{f1llga RUIl, C.V.S. Nagabhushanam, J.A. Wi�h(Il1:IJl, n.v. Rang .. Rao, n.V.R. Reddy, II. Budl, aud S.N. Nigam' OmUnd1l111 kaf llI iner (Ap/'(J{/('f('J//lI modicd/a), tobacco caterpillar (S"oi/o}Ju'l'f/ lillm/), ilphids (At,/Ii.\' rnJl'� ci\'(J/'{I), jassiLls (I:'/JIj}OIl.\"I"If kl'I'ri), thrips (Thrill.l· I'II/mi), and Icnlljle,� arc the major illSl'ct pests Illal CilU!>!.: suhsllIIllial dUluagc !O [he grollllllntH crop. Thrips flalmi is the vcc!Or of hud ncl.:l"Osis virus alld A. cmccil'oI"C1 is till! vector or gnllllldml [ nl.�cllc v i ru,� ill Arrica. M ul [ipl c resistance [0 Illri p,� I .ills:;;](is, tIlld lCrlllilCS (pod scarl Ilc<I­lioli) has bt:cu illc\\\ilicd ill ICOs 2T/ \, 50<10, 5043, 5044, ant15045. lIig,h IC\lCIs or resist alice III ilphids have been fOlllld ill leG 52·10 ,lIld leG 5725. Tolefall!:C' 10 lear miner was IOL:;lIed in a roliilf discase-resistant gcnnphlslIl Iinc, ICG 1697. Thc�c lilll::-; IBm.' beC'1I Lro��cd willi :icvera! high-yidding btll :iusccptibk gCIILJtYPC1i. MlKlcrll!c levels or rcsiS\HH!:C to jassilb and thrips have heel! transfcrred. jllio high-yielding varieties. These vllricties have shown yield iIllv:mlilgcs r;mgitlg betwecn 117 and JJ()fXI cOlllpan:d 10 rel'iistill1t p:m::n[s. 1\ Ihrips .and jil.ssid- . resis\lItH varielY, ICCiV X60JI, bas also shown tolerance 10 lear lIlillcr ami Spodo/J{em. I I hi also rcsistmH tu hut.! necros.is virus. Hcsistance \0 kal' m ill!!r and Spot/Ol'rl'f"lI, 'located ill scveral wild species, is 10 be exploiteu 10 improve Iile leve! of rcsislililce in tile L'ullivalcd types. Groundllu! cultivars witli lIlultiple resisliIJlec 10 insect pests arc likely III hc included as a component in Integrn!cd Pest ManilgelllcH! (IPM) s\m\i.es. Transferring multiplc rcsis\:II)l:t! inlD early"maluring typcs is i\ priorily ill breeding prugrams. Genetic studies UII i:lplikl resistallcc is in progress. Ocveloppement de cultivars ameliorcs a resistance multiple aux inscctes ravageurs et au virus de la necrose des jeunes pousses et a son veeteur Ljl l1Iillell�C des fcuillcs de I'araehide (AI'/"()(/t'r('l1/t/ lIIoclicd/a), Iii chcnille tlu t;tbac (S!'Ot!O/l(('f(/ Jilllrll), JC5 aphides (A/1IJiS crtl£'cil'(ml). les jassidces (Fm/wII.H·1t kl'JTi), les lhrips (Thrips IM/mi), cl Ic.� lerlllilcs sont les principaux insc!:It.:.� ravOlt!clIrs qui e'UI.�enl des degals importants a la culture ;.Inlcllidicre. nU'ips (lalllli cst Ie vcelcur'dtl virlls tic la Illk'rose des pOllsses etll. crlIccil'om est Ie vee-leur till virus de Ii] rosellc de I'arachidc en Arrique, Unc resislance llIultiple aux lhrip.�, ,lUX jassides el aux termite!) (scOlriricalioll des gUlIs:,;cs) iI CIC idcntilicc chez Icav 2271, 5040, S043, 50'1'1, ct 5045. Dcs niveaux cleves de resislant:e all.\; aphides olll ete IfUllves chez ICG 52110 el leG 5725. L;I tolerancc i'] la mincllsc de Ceuillcs a etc IUL',disce dans lIIIC ligllcc rcsislillllC :11" llJillildie roli,lirc, leG 1(197. CC!\ lignec.:s Dil  ele croisees ;IVCc.: dilTcrellts gClIolypc.:S;1 haUl rClIllcJ]]clIl mais scnsibles. De.� niveall.'i Illodercs de resistance au,\; jassides c! aux thrips onl CIC tralisfel'CS a des variclcs a halll rcndClllcnl. Ccs val" ictCl:i 0111 manifeslc de:.; avalllagcs dc remlcUlclH ,dlanl de 117 i\ JJ{)I,Yr, de rcndclllclll, ell L'olllparai.mn avec les parenls resistants. Ulle var icle resistClnle aux lhrip:.; c{ aux jas.sitles, ICG �W()J I. II cgalclllcnl manifcstc dl.' la tolerancl: a 1<1 llIiUCllSL' lies fcuillcs ct a la -"pm/of,tenl. Elle cst 'l\Is�i I:CSiSI,\\Ilc i\ Iii IICCnlS<: (ll'S POIISSl:S. Lll rCSiSI<lIlL'C i\ lei minensc de!) J'cuillcs cl i\ Iii Spor/opfcrll, qui sc lrollvc' dans plusictlJ's esprL'L's I:i!'Q!!!;!!J.G":.Ly_,-t _c\.J�ce.x I ,JoiICl.:_pnlJJ� ill IlCliOl:CL Ie. _ II iycau_dc _1:t�sislaIIL·C. clie!. les types !,'ull iv(-.�, ·Les -clIll i ViiI'S d'ilruchidc i\ resislillll.:e multiple illlX insecles ravageurs sClllblclIl pouvoir eln� illL'lus l'()]llI11C clcmenls tics eludes Sllf III defense illlcgrce des L'lll!ures. Lc lr;lllsfcn de resi!-;/aIH.:e IlIl1ltiplt: d'lllS des Iypt'!':i i\ 1l1:11tlrilC pn��(JL'c ��I U]IC prinrilc des pmgl"illlllllCS de selccli"l!. De!\ Clllllt:.� gCllcliqlll'S Sill' lil rc!\iSlallCe allx aphid,:s SOl II ell L'IHJrS. I. I'lmll Breeder, f!1l1Il1noll gisi. I{c�eilrch A��()ci;llc, I'rim:ipal EUIUII\III\IJ,liS]. Hcseardl ASMlI:hIlL'. 1''i'i;,ciJ all'lam Villliligisi. ]{c.�ealdl Sdl{lIOlr. Illltll'rineiplIll'lulIl ilree!\cr. hllcrn,lIimutl Crops lk� c:lrch II lSlilulC r\lr Ihe Semi·Aril  Tmpb (/Cltl�AT). l'al;Ull'hcrll. AlIdhr.l t'nulcJ;h �02 .12-1. lfllli:l. . '�II 

Development of improved cultivars with multiple resistance to insect pests and bud necrosis virus and its vector

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Development of improved cultivars with multiple resistance to insect pests and bud necrosis virus and its vector

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