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当前许多国家都进行大量工作来培育秆矮不倒伏,产量高,抗病虫的新品种。但直到目前为止,为测定小麦品种和杂种的株高,在大田和实验室条件下都还是在直接用尺测量茎基到穗顶的长度,但这就要等植物抽穗后才能测量,而测定植株数多时要花费大量人力和物力。为此曾探讨了小麦器官发生第二阶段早期诊断小麦矮秆性的方法。找出与小麦株高相关的性状,从多年对小麦器官发生的观察表明,由种粒到分蘖节之间的地下节间长度就属此种性状。这就有可能制定和提出根据地下节间长度对株高作早期诊断的新方法。
Much work is currently under way in many countries to cultivate new breeds of stubborn, high-yielding, pest-resistant culms. However, up to now, in order to determine the plant height of wheat cultivars and hybrids, the length of the stem base to the panicle top was measured directly in the field and in laboratory conditions, but this should be measured after the plants have been heading. However, Plant a long time to spend a lot of manpower and material resources. To this end, the second stage of wheat organogenesis was explored in the early diagnosis of wheat dwarfness. Identifying the traits associated with plant height in wheat, observations from many years of wheat organ development indicate that the length of the internode internodes from the seed to the tillering node belongs to this trait. This makes it possible to develop and propose new methods for early diagnosis of plant height based on the length of underground internodes.