| 赵凡,金胜利,张光全,火玉洁,李桃,汉小红.旱地全膜双垄沟播栽培条件下玉米穗部性状的数量关系研究[J].干旱地区农业研究,2011,29(6):79~85 |
| 旱地全膜双垄沟播栽培条件下玉米穗部性状的数量关系研究 |
| Study on ear characters of corn in film mulching on dulble-ridge plus furrow in dryland |
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| DOI：10.7606/j.issn.1000-7601.2011.06.15 |
| 中文关键词: 全膜双垄沟播 玉米 穗部性状 产量 回归函数 灰色关联分析 旱地 |
| 英文关键词:film mulching on dulbel-ridge plus furow corn ear character yield regression function grey corre-lation degree analysis dryland |
| 基金项目:农业部“旱作节水农业财政专项”〔农财发(2003)11号〕 |
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| 中文摘要: |
| 对在旱地全膜双垄沟播栽培条件下的47个玉米杂交种的穗部性状与单株产量及穗部性状之间的关系进行了相关和灰色关联度分析,并对灰色关联度高且相关系数显著者进行了多类型回归曲线拟合,并通过分析曲线方程的函数性质,明确了在该技术模式下,玉米穗部性状对产量的影响程度以及数量特征和关键点。提出了在纯旱地全膜双垄沟播栽培条件下高产玉米杂交种所具有的穗部性状为出籽率高,千粒重适中,穗粒数较多,秃顶短的小籽粒中等穗型的品种。即协调的性状指标为出籽率在78%以上,千粒重250 g左右,穗粒数560~580粒,穗粗5 cm左右,穗行数18~20行,秃顶低于1.4 cm的品种为宜。用相应参数和曲线图来定量描述各相关性状之间以及与产量的关系更加精确和直观,也能找出有生物学意义的关键点位置。 |
| 英文摘要: |
| Analysis was made of correlation and grey incidence order between ear characters and yield per plant of
47 hyprid corm varieties in film mulching on dulble ridge plus furrow in dryland， and regression curve ftting was also made of those with high grey correlation degree and significant correlation cofficients， so as to find out the degree of in-fluence of ear characters on corm yield. The results showed that， in this kind of culivation mode, the high yielding hy-brid corn had such ear characters as high, moderate 1000 grain weight， large number of grains per ear， short baldhead，small grain size and moderate ear size . The suitable coordinated indices of ear characters were 78% fertility， 250 g of 1000-grain weight，560~580 grains per ear, 5cm of ear diameter，18~20 rows of grains per ear and less than 1.4 cm of baldhead. It is very accurate and visual to describe quantitatively the correlation between different indicators of ear characters and their relationship with com yield with corresponding parameters and curves , meanwhile the biological key points can also be found in this way. |
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