查询词典 dwarfness
- 与 dwarfness 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The per unit area yield of rice in China has been increased significantly since the rice breeding for dwarfness was extended and hybrid rice was bred and applied from 1960-1970's.
自20世纪60-70年代推行矮化育种和杂交水稻选育与推广以来,我国水稻单产水平有了大幅提高。
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Since curly leaf hybrid could be recognized at early stage,and displayedobvious dwarfness,choosing"Zha′ai 76"as paternal parent not only raised thehybrid-selecting efficiency from the pollinated progenies,but also raised thebreeding efficiency of apomctc dwarf roostock of apple.
鉴别宽叶型杂种较难、需时较长(2-3年生时)并需与染色体倍性鉴定法相结合,因其形态变化较小而生长势又与平邑甜茶无融合生殖苗无明显差异;鉴别光叶型杂种因父本染色体组的影响加大而从形态上容易些,但也需过氧化物同工酶法或染色体倍性鉴定法相配合;皱叶型杂种因在苗期刚出1-2片真叶时就表现明显的标志性状、能从叶片形态上准确鉴别出来,毋须染色体倍性鉴定等复杂方法;因皱叶型杂种能早期鉴别,又表现明显的矮生性,因而选用"扎矮76"做父本不仅大大提高了平邑甜茶授粉后代中选择杂种的效率,而且提高了苹果无融合生殖型实生矮砧育种的效率。
- 推荐网络例句
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Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination
中国人的传统美德是谦虚谨慎,对别人的恭维和夸奖应是推辞。如
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We bought this house on the never-never.
我们以分期付款的方式买下这座房子。
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If they did move, and saved the penalty, the referee could insist on the penalty being retaken. In a Scottish 1945 game between Kilmarnock and Partick Thistle, Tommy White had to take a penalty seven times!
如果移动了,而且救出了点球,之前的点球可以视为无效,并重新再罚一次点球。1945年在 Kilmarnock 对阵Partick Thistle 的苏格兰联盟杯比赛中,判给其队的一次任意球,Tommy White却踢了7次。