第75章 太空育种
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.转基因食品（gecomicallymodifiedfoods，gmf）就是利用现代分子生物技术，将某些生物的基因转移到其他物种中去，改造生物的遗传物质，使其在形状、营养品质、消费品质等方面向人们所需要的目标转变。更多小说ltxs520.com以转基因生物为直接食品或为原料加工生产的食品就是“转基因食品”。
转基因食品的种类一般有四种，植物性转基因食品、动物性转基因食品、转基因微生物食品和转基因特殊食品等。
而国内自20世纪80年代初开始，就已经将现代生物技术纳入科学发展计划，经过了近20年的努力，截止2000年上半年，我国进入中间试验和环境释放试验的转基因作物分别为48项和49项。
现在是99年末，整体项目还不是很多，转基因食品在国内还是属于一个刚刚发展的阶段，而张文从母巢那里得到的确实几乎完整的转基因生物技术，而且还不是局限于农业产业上的，几乎涵盖了农、林、牧、副、渔等各个方面。
太空育种：也称空间诱变育种，就是将农作物种子或试管种苗送到太空，利用太空特殊的、地面无法模拟的环境的诱变作用，使种子产生变异，再返回地面选育新种子、新材料，培育新品种的作物育种新技术。太空育种具有有益的变异多、变幅大、稳定快，以及高产、优质、早熟、抗病力强等特点。其变异率较普通诱变育种高3－4倍，育种周期较杂交育种缩短约1倍，由8年左右缩短至4年左右。
太空育种技术在地球上同样是具有相当高的科技含量的技术，目前全世界只有中、美、俄三国具备返回式卫星技术，所以在这方面中国是走在世界前列的。
虽说这样，可是太空育种技术因为本身成本的关系，所以地球技术上还是处于比较低端的程度，远远不能够与拥有着完整、系统技术的母巢相比的。
相对而言，无土栽培技术就属于比较落后一点的，可是却同样属于不能够忽视的重要科学技术。
离开地下世界的时候，张文带走了约二十多只长相极其怪异的虫子，同时他带来的那个硕大的玻璃瓶中也装满了一种叶绿色的神秘汁液。
无论什么技术，都需要经过无数的实验进行解释、论证，最好才能够运用于实践，在这一点上张文算是走在了世界的前列。
用他的话就是，“别人辛辛苦苦、累死累活的为了一个实验要准备数年的时间，可我只需要极少量的母液就搞定了。”
别小看这一瓶看起来很普通的汁液，这要是让外面的科学家发现的话，绝对是会让人疯狂的，小小的一滴估计都会让人抢疯掉。
鉴于张文实在没有人手，母巢暂时又不能够给张文提供太多的援助，就只好将原本必须要经过的过程直接省略，直接以母液的形式提供给了张文。
这种母液的构成经过了母巢对地球上存在的元素及知识结构的了解之后完成的，虽然已经是成品，可人类想要完全掌握它，还是需要用大量的实验进行论证的。
张文也是考虑到这一点，才点头同意的。
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