Mefuta e hanyetsanang e Tla lokolloa Hamorao Selemong Sena ho Balemi
Litahlehelo tsa fragola ho tloha fusarium wilt e ka fetoha tšokelo e fokolang ka mor'a hore bafuputsi ba Univesithi ea California, Davis, ba sibolle liphatsa tsa lefutso tse hanyetsanang le lefu le bolaeang le bakoang ke mobu.
Se fumanoeng, se phatlalalitsoe koranteng Liphatsa tsa lefutso tsa Theory le Applied, ke sehlohlolo sa mosebetsi oa lilemo tse ’maloa, ’me ho sibolloa ho tla thusa ho sireletsa khahlanong le tahlehelo ea maloetse, ho boletse Steve Knapp, motsamaisi oa Lenaneo la ho Hōlisa Strawberry ho UC Davis.
"Seo re se finyeletseng mona se bohlokoa ebile se bohlokoa bakeng sa indasteri mme se tla sireletsa balemi," ho boletse Knapp.
Fragole ke sejalo sa bohlokoa California, moo hoo e ka bang liponto tse libilione tse 1.8 tsa litholoana tse matlafatsang li lengoang selemo se seng le se seng, tse etsang hoo e ka bang 88% ea se kotuloang United States.
Ho fumana liphatsa tsa lefutso ho ka thibela a fusarium lefu la seoa.
"Boloetse bona bo se bo qalile ho hlaha hangata ho ea holimo le tlase seterekeng," ho boletse Glenn Cole, morui le molaoli oa masimo ka Lenaneo la Ts'ebetso ea Strawberry. Hang ha semela se kena, semela sea soahlamana. O na le lefu ka ho feletseng. "
Ho batla khanyetso
Bo-rasaense ba UC Davis ba ile ba hlahloba limela tse likete tsa fragola ka har'a sebaka sa bana sa College of Agricultural and Environmental Sciences 'me ba nka lisampole tsa DNA. Eaba ba sebelisa tlhahlobo ea liphatsa tsa lefutso le ho hlahisa tlhahlobo ea DNA ho khetholla liphatsa tsa lefutso tse hanyetsanang le peiso ea mantlha ea fusarium batla.
"Liphatsa tsa lefutso li 'nile tsa phaphamala ka har'a likokoana-hloko tsa fragola ka lilemo tse likete," Cole o itse, empa ha ho motho ea ileng a sebetsa ho li khetholla.
Khatelo-pele ena ea morao-rao e tlisa "fragola lekholong la bo21 la lilemo mabapi le ho rarolla bothata bona," ho boletse Knapp.
Ho sireletsa lijalo tse tlang
Mosebetsi ona o bolela hore bahlahisi ba ka hlahisa mofuta o hanyetsanang le mefuta e tlang ea fragola. Hoetla hona lenaneo le tla lokolla mefuta e mecha e nang le fusarium wilt resistance gene. 'Me lisebelisoa tsa tlhahlobo ea DNA li tla thusa balisa ho arabela ho tse ncha fusarium mefuta e sa tšoaneng ea wilt e hlahang.
"Ho tla ba le litšokelo tse ncha 'me re batla ho itokisetsa tsona," ho boletse Knapp. "Re batla ho utloisisa hore na sena se sebetsa joang ka fragole e le hore ha litšokelo tse ncha li hlaha, re ka li rarolla kapele kamoo ho ka khonehang."
“Haeba ha o na fusarium khanyetso, u felile, ”ho boletse Cole. "Lefu lena le ka ba teng ho feta kamoo u nahanang."
fusarium wilt e ne e se bothata ka moetlo, empa ha fumigant methyl bromide e felisoa ka 2005, lintho li ile tsa fetoha. Lefu lena le ne le le mobung, 'me ntle le mouoane, liketsahalo tsa ho bola li ile tsa eketseha, haholo-holo libakeng tseo lijalo li neng li sa fetoloe.
Ho hlahisa mefuta e mecha
Knapp le Cole ba tsebisitse indasteri ka mefuta ea hona joale ea fragola e nang le khanyetso e le hore ba ka khetha limela tse nang le tšireletso e eketsehileng. Mefuta e mecha e hanyetsanang e hlahang hamorao selemong sena e tla ba e loketseng linako tse 'maloa tsa ho hola.
"Ke taba e kholo," ho boletse Cole. "Ntho e 'ngoe le e' ngoe e ea eketseha ho tsalisoeng ha limela, empa ke taba e kholo."
Bo-rasaense ba limela esale ba ikatisa fragole ho UC Davis ho tloha ka bo-1930, 'me ba lokolotse mefuta e fetang 60 e nang le tokelo ea molao ka lenaneo la sechaba la ho ikatisa.
Mosebetsi oohle o etsahetse UC Davis. Dominique Pincot, Mitchell Feldmann, Mishi Vachev, Marta Bjornson, Alan Rodriguez, Randi Famula le Gitta Coaker ba tsoang Lefapheng la Plant Sciences, le Thomas Gordon oa Lefapha la Plant Pathology ba kentse letsoho phuputsong ena, joalo ka Michael Hardigan le Peter Henry, ea ileng a etsa lipatlisiso. hona joale ba Lefapheng la Temo la U.S. Tšebeletso ea Lipatlisiso tsa Temo, le Nicholas Cobo, ea leng Univesithing ea La Frontera e Chile.
Patlisiso ena e tšehelitsoe ka lichelete ke UC Davis le lithuso tse tsoang Setsing sa Naha sa USDA sa Lijo le Temo Specialty Crop Research Initiative.
Mohloli: https://www.ucdavis.edu