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凯发k8官方首页视频]墨西哥:运用生物技术 培育龙舌兰新品种

发布日期:2024-08-14 17:41:29来源:凯发k8国际浏览量:

  此外▪▼,还进行了一系列关于龙舌兰新品种的试验△▷,墨西哥目前龙舌兰的种植面积为12万公顷••▲★,

  CCTV◆○◆.com消息(国际时讯)…•●••:大屏幕中这种看着有些像剑兰的植物叫做龙舌兰•▲,由它酿造出来的龙舌兰酒可以说是墨西哥的▽▼“国酒▼▽”▪…•▲•。但是由于龙舌兰的生长期长达10年▲□▪…○,而且非常容易感染褐斑病菌☆◁…▽▽=,往往让种植者前功尽弃▷…☆•。为了提高龙舌兰的产量△△,墨西哥的科学家宣称•▽△=,他们通过多年研究◁□,生产出了一种带有抗病菌功能的新品种龙舌兰◆=☆▲-。

  导致玉米价格飚升=▷,由于墨西哥大力发展以玉米为原料的生物燃料取代汽油的计划★…▲,平均每年要生产出2亿4千万升龙舌兰酒…★△▷☆。

  最近几年▲□▷•,也使得不少墨西哥农民放弃种植龙舌兰而转向重植利润更高的玉米-◆。目前正在研究中的就包括比普通龙舌兰成长期更短的新品种□▼★▲◆。据统计☆●★◇-,罗德里格斯所在的☆□◁“哈利斯科州科学设计研究中心-=■”◇◁•=★。

  通常一株龙舌兰的成熟期长达8到12年…▽△,而且在成长过程中▪▷◆▪,其植株染上褐斑病的几率也高达40%◇▪▷◁▲。多年来种植者都是用喷洒农药的方法来解决这个问题★☆●◁★•,但这一做法也一直受到消费者的质疑●☆■▲•■。

  过去10年来◇△▲○◆,科学家罗德里格斯一直致力于研究改良龙舌兰的品种■○。最近凯发k8官方首页★-▪▪▲,他宣称研制出了具有自我抵抗褐斑病菌的龙舌兰新品种=-。

  罗德里格斯表示■★•▪◁△,他们是从龙舌兰的植物细胞中经过反复筛选挑出具有抗病菌功能的优良单细胞◁○△,然后通过生物技术不断复制这一细胞◇•,最后培植出龙舌兰幼苗•☆◇▪▪◇。他强调这一技术和转基因技术不同•▼▲◁▷…,也可以避免使用化学制剂对龙舌兰造成的伤害=□◁。

  不过△=,用这种新品种的龙舌兰酿造出来的龙舌兰酒是否风味依旧◆△…?一些业内人士仍然持保留意见△▽=▼=。品酒专家阿娜·罗梅罗表示☆□◁,要等到新一代龙舌兰酿造出酒-▷=★…,并经过品尝之后才能下结论◆△。




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