杂交种子与传家宝种子
在本周的节目中,他们将谈论蔬菜种子以及杂交种子、传家宝种子和转基因种子的区别。他们首先将传家宝种子定义为那些早在20世纪初就代代相传的种子。传家宝植物是开放授粉的,这意味着种子可以保存下来,用于来年的作物。一些传家宝在当地进行了改造,以应对某些疾病或虫害的压力,这当然是一种优势。格雷格坚信,传家玉米比杂交玉米具有更多的抗病、防虫和抗旱能力。关于传家宝种子的一个误解是,传家宝种子比杂交种子味道更好。他们说,与传家宝不同,杂交品种更多的是为了产量而不是味道。格雷格和特拉维斯认为这不是百分百正确的。虽然传家宝可能有更独特的形状,但许多现代杂交种子提供了与传家宝媲美的卓越风味。人工选择和自然选择有两种不同的含义。 Artificial selection or hybridizing means that humans have been involved and they had control in selecting things to happen. Natural selection has to do with nature taking its own course of action without any human interaction with it. They talk about hybrid seeds being the result of a cross-breeding between two related varieties. With hybrids, all of the first generation (F1) plants are the same. However, hybrid seeds cannot be reliably saved because the F2 individuals will not be true to variety. Hybrid seeds are great because they usually offer increased disease or pest-resistance and increased productivity. Hybrids allow you to get a certain selection done that have a particular outcome of the varieties. Finally, they discuss how GMO seeds are manufactured and address the ecological ramifications of seeds that allow the widespread use of non-selective herbicides. Genetically modified organism (GMO) is when you take a gene from an unrelated species or nonplant organism and isolate that gene based on the trait you are looking for. Then, you take that gene and insert it into the plant so that plant carries the same trait.
展示和讲述环节
在节目和讲述环节,特拉维斯有一个黄油紧缩生菜他那天早些时候收获的他提到黄油头莴苣是他的最爱,因为它质地光滑,味道浓郁。黄油头莴苣非常适合做虾、鸡肉或猪肉卷。格雷格一直在菜园里摘萝卜。如果你不喜欢萝卜的辣味,很多人喜欢炒萝卜而不是生吃。他有一个西瓜萝卜它有一个小裂缝,这可能是由于水太多或者它们长得太大造成的。在储存萝卜的时候,你可以把叶子掰下来,放在一个小袋子里,它们可以很好地储存在冰箱里。特拉维斯有一些彩菜白菜长出漂亮的小脑袋,味道很好。
观众问题部分
在问答环节,他们回答了关于磨刀和杂交种子成本的问题。格雷格提到皮条是他磨刀最喜欢的工具。只要刀刃不是非常钝,它可以工作,相当容易塑造皮革带和锐化化合物。特拉维斯提到,杂交种子通常更贵,因为它们的生产成本更高。它们通常也是质量更好的种子,因为它们是为了抗病或高产而培育的。

