不同不育株和可育株变异对玉米杂交种产量的影响

S. Jovanović, G. Todorović, Branka Kresovoc, R. Štrbanović, R. Stanisavljević, T. Živanović, B. Šimić
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引用次数: 0

摘要

从玉米的分布和播种面积来看,玉米都是重要的大田作物。玉米作为食品、饲料和工业加工的不同用途的可能性极大地促进了这种作物的高经济意义。所进行研究的目的是通过在一定地点进行试验,确定不同比例的可育和不育植物对产量的影响。在旱作条件下,根据随机完全区组设计,在Zemun Polje地区进行三重复试验。利用商品杂交种zpsc341的不育株和可育株的不同变异体进行杂交。统计数据处理采用随机完全区组设计进行方差分析,对杂交种ZPSC 341的籽粒产量与可育株数比例进行回归分析和相关分析,以确定籽粒产量与不育株数与可育株数比例的变化关系。结果表明,育性为80%(5%)的杂交种平均产量最高(15.472 tha -1),最低(14.046 tha -1)。相关系数表明,产量与育肥率的相关性较弱(rxy=0.101)。从决定系数看,产量与可育株数的百分比相关性较低(R²=0.010)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
EFFECTS OF DIFFERENT VARIANTS OF STERILE AND FERTILE PLANTS ON MAIZE HYBRID YIELDS
Maize is a very important field crop according to both, its distribution and sown areas. The possibility of different utilisation of maize for food, feed and industrial processing is greatly contribute to high economic significance of this crop. The aim of conducted studies was to determine the effect of various proportions of fertile and sterile plants on the yield by performing trials in a certain location. The three-replication trial was set up according to the randomised complete block design in the location of Zemun Polje under conditions dry land farming. A mixture of different variants of sterile and fertile plants of the commercial hybrid ZPSC 341 was made. Statistical data processing included the analysis of variance according to the randomised complete block design, regression and correlation analyses of grain yield and the percentage of fertile plants in the hybrid ZPSC 341, in order to determine the changes in grain yields in relation to the percentage ratio of sterile to fertile plants. Obtained results indicate that the highest (15.472 t ha -1 ), i.e. lowest (14.046 t ha -1 ) average yield was recorded in the hybrid with 80%, i.e. 5% fertility, respectively. The coefficient of correlation points to a weak dependence of the yield and the fertility percentage (rxy=0.101). Based on the coefficient of determination, the percentage dependence between the yield and the percentage of fertile plants was low (R²=0.010).
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