【摘 要】
:
自交系是玉米杂种优势利用的基础材料。对玉米自交系的深刻认识和科学利用是玉米强优组合选配的关键。为此,不少学者曾在配合力测定、线粒体互补、同工酶分析等数量遗传和生
论文部分内容阅读
自交系是玉米杂种优势利用的基础材料。对玉米自交系的深刻认识和科学利用是玉米强优组合选配的关键。为此,不少学者曾在配合力测定、线粒体互补、同工酶分析等数量遗传和生理生化领域进行了深入的研究。取得了一定进展。用多元分析法,测定自交
Inbred lines are the basic materials for maize heterosis utilization. A deep understanding and scientific utilization of maize inbred lines is the key to maize selection. To this end, many scholars have conducted in-depth research in the field of quantitative genetic and physiological biochemistry with the determination of co-activity, mitochondrial complementarity, isozyme analysis. Some progress has been made. Multivariate analysis, self-determination
其他文献
Dimethyl formamide (DMF) is an important chemical raw material and also a solvent with excellent property.
In the week July 9th-13th, the indexes of Shanghai Stock and Shenzhen Stock increased 3.52% and 3.4% respectively, and investors confidence recovered from the n
With the rapid development of petrochemical and plastic preparations sectors after the 1990s, the output of plastic film in China surged rapidly. The output of
关于竖画的写法,在写字教学中我做出以下总结:一竖长长长中间,二竖略长长右边,三竖中间长俩边,四竖可长末笔端.
"SABIC Innovative Plastics is a global supplier of plastic resins, manufacturing and compounding polycarbonate, ABS, SAN, ASA, PPE, PC/ABS, PBT and PEI resins,
“孩子们太幼稚了,太容易被人骗了,上下学不接送,确实不放心啊!”校门口,站在寒风里等孩子下学的家长这样对记者说.
加拿大的科学家利用基因工程技术使玉米同小麦杂交获得成功,这种基因改良型的小麦是用玉米的花粉使小麦受精。显然从遗传学上来讲,这两种作物是完全不相同的,小麦为42个染色
The output has grown stablyCoal tar is a byproduct in coking. The yield is usually 2.5%-4.0% of coking dry coal and the output is closely related to the output
随着新课程改革的不断推动,教育领域发生翻天覆地的变化,在以往的中职英语教学模式中所运用到的满堂灌教学模式已经不符合新课程改革后的教学理念,因此,教师应建立在新课程改