《 農民日(ri)(ri)報 》（ 2013年12月09日(ri)(ri)   06 版）

    日(ri)本研究人員(yuan)日(ri)前發現了一(yi)種(zhong)即使不授粉也能(neng)結出漂亮果實(shi)的西(xi)紅(hong)(hong)柿新品種(zhong)，這種(zhong)西(xi)紅(hong)(hong)柿有助(zhu)減少栽(zai)培成本。

    植物有時不(bu)授粉(fen)也能結(jie)果(guo)，這(zhe)種(zhong)(zhong)(zhong)(zhong)現象稱為(wei)(wei)單(dan)(dan)性(xing)結(jie)實(shi)(shi)。西紅柿中的(de)單(dan)(dan)性(xing)結(jie)實(shi)(shi)現象還(huan)(huan)有助避免使用激素(su)。因(yin)為(wei)(wei)在(zai)種(zhong)(zhong)(zhong)(zhong)植西紅柿時，冬季(ji)低(di)溫和夏季(ji)高溫往(wang)往(wang)導致(zhi)果(guo)實(shi)(shi)狀況不(bu)佳，為(wei)(wei)解決(jue)這(zhe)個(ge)問題，農戶(hu)要花(hua)費很多精力來進行(xing)復雜的(de)激素(su)處理。為(wei)(wei)了(le)不(bu)用激素(su)處理也能結(jie)出果(guo)實(shi)(shi)，研(yan)究人(ren)員一直在(zai)培(pei)育單(dan)(dan)性(xing)結(jie)實(shi)(shi)的(de)西紅柿品種(zhong)(zhong)(zhong)(zhong)。日本(ben)筑波大學研(yan)究人(ren)員對所(suo)培(pei)育的(de)１萬多種(zhong)(zhong)(zhong)(zhong)西紅柿變(bian)異體(ti)進行(xing)了(le)分析，發(fa)現了(le)幾(ji)種(zhong)(zhong)(zhong)(zhong)單(dan)(dan)性(xing)結(jie)實(shi)(shi)的(de)品種(zhong)(zhong)(zhong)(zhong)，其中一個(ge)品種(zhong)(zhong)(zhong)(zhong)的(de)果(guo)實(shi)(shi)不(bu)會變(bian)得過于柔(rou)軟，不(bu)易(yi)破裂。研(yan)究小組將這(zhe)種(zhong)(zhong)(zhong)(zhong)不(bu)用授粉(fen)也能結(jie)出漂亮果(guo)實(shi)(shi)的(de)西紅柿品種(zhong)(zhong)(zhong)(zhong)命名為(wei)(wei)“夢(meng)幻(huan)快樂西紅柿”。研(yan)究人(ren)員還(huan)(huan)確認了(le)讓西紅柿具備這(zhe)種(zhong)(zhong)(zhong)(zhong)性(xing)質的(de)基因(yin)。         藍(lan)建中