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首页> 外文期刊>Agrivita: journal of agricultural science >ROLES OF CALCIUM AND MAGNESIUM AS SELECTION FACTORS IN SWEET CORN QUALITY IMPROVEMENT ON ACIDIC RED-YELLOW PODSOLIC SOIL
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ROLES OF CALCIUM AND MAGNESIUM AS SELECTION FACTORS IN SWEET CORN QUALITY IMPROVEMENT ON ACIDIC RED-YELLOW PODSOLIC SOIL

机译：钙和镁作为选择因子在酸性红黄壤土改良甜玉米品质中的作用

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摘要

The cultivation of sweet corn (Zea mays L. spp. saccharata {Sturt.} Bailey) on acidic red-yellow podsolic (RYP) soil in Lampung, Indonesia was hampered by the low fertility and pH of the soil. Soil amendment with Ca and Mg would improve growth and development of the sweet corn cultivars, as well as differentiating environments in selecting for adaptive cultivars. Aglime, dolomite, Portland cement, and a mixture of 3 aglime: 2 dolomite (w/w) were applied on LASS Yellow-Round (Y-R), LASS Yellow-wrinkle (Y-w), Bicolor and LAS Yellow-wrinkle (Y-w). The results indicated that the kinds of Ca and the doses apllication were capable to differentiate the sweet corn cultivars. Aglime 400 kg ha-1 was the best treatment to modify plant environment as selection factor followed by cement 400, dolomite 200 and aglime-dolomite mixture 400 kg ha-1. They improved the growth of the cultivars as well. The characters of interest of the cultivar had complied with those of commercial standard, except for plant height, ear diameter, and kernel-rows ear-1. However, since the genetic variation and broad-sense heritability values for those characters were essentially zero, the subsequent improvement would require genes from the outside populations.
机译：印度尼西亚楠榜在酸性红黄色裸露土壤（RYP）上种植甜玉米（Zea mays L. sac。saccharata {Sturt。} Bailey）受到土壤低肥力和低pH值的阻碍。用钙和镁进行土壤改良将改善甜玉米品种的生长和发育，以及在选择适应性品种方面的差异化环境。将Aglime，白云石，波特兰水泥以及3种Aglime的混合物：2白云石（w / w）涂在LASS Yellow-Round（Y-R），LASS Yellow-Wrinkle（Y-w），Bicolor和LAS Yellow-Wrinkle（Y-w）上。结果表明，Ca的种类和用量可以区分甜玉米品种。 Aglime 400 kg ha-1是改变植物环境的最佳处理方法，其次是水泥400，白云石200和400kg ha-1的aglime-白云石混合物。它们也改善了品种的生长。除植物高度，穗直径和籽粒行ear-1以外，该品种感兴趣的特性均符合商业标准。但是，由于这些字符的遗传变异和广义的遗传力值基本上为零，因此后续的改进将需要来自外部种群的基因。

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