Varietal resistance kuspinachi downy mildew yava imwe yenzira dzakakosha dzekusarudza mukusarudza kwakasiyana-siyana kune varimi vane mazvikokota veku UK, sekureva kwaSyngenta leafy salad nyanzvi, Rosemary Atwood.
Kuziviswa kwemijaho miviri mitsva yespinachi downy mildew pathogen (Peronospora effusa) mwaka uno inowedzera dambudziko kuindasitiri uye kutarisisa zvirongwa zvekupfuya.
Mujaho uchangobva kuziviswa wePe:18 wakawanikwa kwakawanda muEurope, nerudzi rwePe:19 kunyanya muUS. Zvisinei, International Working Group on Peronospora in sipinachi (IWGP), yakazivisa kuti: 'madzinza ose ari maviri anotyisidzira zvikuru indasitiri yepinashi munzvimbo dzese dzepasi, uye kuramba marudzi matsva aya kwakakosha'.
"Tiri kuramba tichiona kukosha kwekudzivirira kwemhando dzakasiyana-siyana mukubatsira kudzivirira zvinogoneka zvinogona kukanganisa kubuda kwe downy mildew," akadaro Rosemary.
"Chakanyanya kukosha, varimi vedu vanga vachitarisa kukura kwehutachiona muEurope mumakore achangopfuura, saka vakatosarudza mhando dzekurwisa mijaho mitsva, sechikamu chezvese zvakazara downy mildew resistance package."
Akataura kuti maitiro ekucherechedzwa zviri pamutemo kwemujaho we downy mildew anosanganisira kuvepo munzvimbo yakakura uye nemwaka unoteedzana, pamwe nekusiyana nemakwikwi aripo.
"Izvi zvinoreva kuti takakwanisa kuyedza mhando nyowani, dzakaita seEl Lucio, El Furio, El Bravo neEl Halo, tichipesana nedzvinyiriro yechirwere chemuno, uye tinogona kuva nechivimbo mukuramba kwavo kwakasimba." Ese aya marudzi eSyngenta anoshingirira kumarudzi matsva Pe:18 nePe:19 kuvarimi veku UK nekuEurope.
Kunyange zvazvo mamwe marudzi echinyakare che downy mildew angave asisawande, Rosemary inotsigira marudzi anogona kuratidza kusawirirana nemarudzi akawanda anogona kuva akavimbika.
"Chokwadi, kune mamwe akawanda majaho ehunyoro ari kutenderera muEurope yese kupfuura ayo anozivikanwa zviri pamutemo, pamwe padanho renzvimbo kana kungobuda kweapo neapo. Kusarudza mhando dzakaberekerwa mamiriro eEurope nemusika, uye dzakaedzwa munzvimbo yese, zvinopa mukana wakanyanya wekudzikisa njodzi kubva kuchirwere chinokuvadza. "
Akasimbisa iyo Syngenta renji ine yakazara downy mildew kuramba inovhara mwaka wese wekukura, neEl Bravo ichiita zvakanaka mukukura kwemugero uye kugadzirwa kwemwaka wekutanga, ichiteverwa neEl Furio kusvika mukupera kwechirimo ine ruvara rwakasvibira uye mashizha akasimba anokodzera. processing. Kuburikidza nehunyengeri hwepakati-chirimo mwaka El Halo yaita zvakasarudzika yakavimbika pakurwisa bolting. Kupedzisa mwaka varimi vanogona kudzokera kuEl Furio uye pakupedzisira El Bravo, akawedzera.
"Iye zvino tine varimi vari kushandisa marudzi ese ari matatu muchirongwa chavo, kuti vawane kusimba kwekurima mumwaka wese," akadaro. Mamwe marudzi matsva ari kuunzwa gore rino anoratidzawo kushingirira pakurwisa mhando itsva uye mamwe marudzi e downy mildew muEurope. Chikwata chekupfuya sipinachi cheSyngenta European, icho zvino chinotungamirwa naRinse Jaarsma kuEnkhuizen kuHolland, chiri kushingaira kubatanidza kurwisa stemphylium musumo itsva yekambani.
Rosemary akawedzera kuti zvinoramba zvakakosha kuronda uye kutsvaga chero mijaho mitsva ye downy mildew. "Izvi zvinoreva kuti tinogona kuyedza mhando nyowani kutyisidzira dzinogona kuitika mune remangwana uye, kana ikasimbiswa zvakakwana mudunhu rese, kuti igoiswa semujaho wepamutemo."
Uko varimi vanoona kunyuka kwechirwere chedawny mildew mumhando dzemhando dzinoshingirira, Rosemary anovakurudzira kuti vapinde muchirongwa cheindasitiri chekuti zviongororwe nekurekodhwa - izvo Syngenta iri kushanda nesimba mukubatsira.
Kuchinja kwemamiriro ekunze kuri kuwedzera kukonzeresa nguva dzekupisa nekunyorova kwenguva refu izvo zvinonyanya kukonzeresa downy mildew, akayambira.
"Zvakakosha kuti varimi vave nemidziyo yese iripo yenzira yakabatana yekudzivirira kurasikirwa kwevhu. Izvi zvinotanga nekusiyana-siyana uye zvinotsigirwa nechirongwa chekurima chinoshanda,” akadaro Rosemary. Kukura sipinachi pamwe chete nechirongwa chakanaka chefungicide kunogona kubatsira kuchengetedza kukosha kweiyo varietal resistance mukufamba kwenguva, nekudzikisira kukura kwehutachiwana hutsva.
Mavara emashizha eSipinachi anogona kukonzerwa nehuwandu hwezvirwere zvakasiyana siyana, kusanganisira Peronospora effusa, Stemphylium marudzi., Cladosporium variabile uye Colletotrichum dematium. Aya utachiona haagari achitariswa nevakuru veEU.
Syngenta yakaratidza kupikisa kwakanyanya (HR) mumitsara yekambani yemajini kune imwechete Stemphylium mhando yakaonekwa uye yakaparadzaniswa kubva kune akawanda leafspot samples mumakore achangopfuura uye nenyika dzakasiyana dzeEU.
Kuti uwane mamwe mashoko,
Rosie Atwood
Syngenta UK
Nharembozha : (+44) 07776 997416
Email: rosemary.atwood@syngenta.com