【摘要】 本文应用灰色关联度分析方法，对中早熟玉米杂交种主要农艺性状间的相关性及其对产量的影响进行了分析，结果表明：产量与10个性状的关联序依次为稳长r₆＞千粒重r₁₀穗粗r₇＞行粒数r₉＞生育日数r₁＞株高r₄＞德位高r₅＞出苗一抽丝天数r₂＞抽丝一成熟天数r₃＞穗行数r₈与产量形成关系密切的性状主要是德长，千粒重、穗粗、行粒数、生育目数和株高，并明确了各性状之间的相互关系，为玉米育种和高产栽培提供了理论依据。更多还原

【Abstract】 The correlation of main agronomic characters and their effect on yield of mid - earlyripening maize hybrids were studied by grey correlative degree analysis in this paper. The results showedthat the yield was closely related to ear length, 1000 - kernel weight, ear wide and kernel numbers/row.Next to them are days of growing Period and plant height. But row numbers/ear and days from silking toripening affected on it slghtly. The relationship among other traits was discussed, too. And the auther Putforward a primp principle on selection and screening of mid - early maize hybrid.更多还原