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本文系1957—1979年间,根据多次田间调查春小麦品种对麦秆蝇抗性机制研究的结果。麦秆蝇有趋向遮荫较差麦田的习性,卵散产,主要产在叶片正面近基部处。研究结果表明,春小麦品种对麦秆蝇的抗性,主要是由此虫产卵对不同品种的选择性决定的。影响产卵选择性的特性已证明有生育期、叶面茸毛性、叶片宽度及叶片与茎秆间交角。抽穗愈早、叶面茸毛密而长、叶片狭或叶片与茎秆间交角大,则着卵较少。统计分析这些差异都是显著的。此外,有一年的田间调查表明叶色深的品种着卵较少,叶色深浅与着卵量有显著的负相关。但这需要进一步验证。还有,品种生育期的长短与幼虫入茎成活率,已证明有显著的正相关,因此品种生育期也起一定的抗生作用。
In this paper, from 1957 to 1979, according to several field surveys of spring wheat varieties on the resistance of wheat straw flies results. Straw flies have a tendency to poorly shady wheat field habits, egg production, mainly produced in the front of the leaf near the base. The results showed that the resistance of spring wheat varieties to wheat flies was mainly determined by the selective selection of different varieties by spawning the insects. The characteristics that affect the selectivity of spawning have been shown to have growth periods, leafy hairiness, leaf width, and angle between leaf and stem. Ear sooner, leaves dense hairy and long, narrow leaves or stem and leaf angle between the large, then the eggs less. Statistical analysis of these differences are significant. In addition, a year of field surveys showed that the leaves with darker color had fewer eggs and the leaf color had a significant negative correlation with the amount of eggs laid. But this needs further verification. Also, the variety of the length of growth and survival of larvae into the stem has proven to have a significant positive correlation, so breed growth stage also play a role in antibiotics.