不同玉米品种苞叶性状比较研究
首发时间:2019-06-10
摘要:试验于2017-2018年在河北农业大学清苑试验站进行。采用14个不同熟性的玉米品种为材料,在3个密度(6.0万株/hm2,7.5万株/hm2,9.0万株/hm2)下系统分析了不同品种生长发育和穗粒重情况,并对果穗苞叶性状进行了比较研究。结果表明:不同品种和密度间单株干物质和穗粒重均差异达极显著水平;苞叶质量、苞叶层数和苞叶面积差异亦达到极显著水平,苞叶长度和宽度差异未达到显著水平。本研究对进一步明确不同品种玉米果穗苞叶性状的差异性及其选育适合机收籽粒的玉米品种有一定的参考价值。
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Comparative study on husk characters of different maize varieties
Abstract:The experiment was conducted at Qingyuan experimental station of Hebei Agricultural University in 2017 - 2018. 14 maize varieties with different maturity were used as materials, the growth and development and grain weight per plant of different varieties were analyzed systematically under three densities (6.0×104, 7.5×104, and 9.0 ×104plants /ha), and the characteristics of husk in ear were compared. The results showed that there were significant differences in plant dry weight and grain weight per ear between different varieties and densities. The differences of husk dry matter, number of husk layers and husk areas were also extremely significant, while the differences of husk length and width were not significant. This study has certain reference value for further clarifying the difference of husk characters of different maize varieties and selecting maize varieties suitable for grain harvesting mechanically.?????
Keywords: maize husk characters varieties grain weight per ear dry weight?????
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