糯玉米杂交种主要农艺性状及籽粒营养成分的研究

利用区域试验资料,对糯玉米杂交种主要农艺性状及籽粒营养成分进行了研究。结果表明,育成品种以中秆、中早熟杂交种为主;果穗以中穗类型居多,籽粒多为中间型;不同类型间鲜穗和干粒产量存在明显差异。不同品种最佳采收期和成熟期籽粒的营养成分有不同变化,成熟期籽粒的蛋白质、粗纤维、可溶性糖的含量较采收期降低,总淀粉和粗脂肪的含量则提高。不同品种之间果皮厚度存在明显差异。

Studies on Chief Agronomy Characteristics and Kernel Nutrient Component of Waxy-grained Maize Hybrids

Comparing analysis on the main agronomic characters and nutrients content in grains of different kinds of waxy-grained maize hybrids were made according to data from regional tests. The results showed that the dominant species of hybrid in ripe were those charactering with mean height and early- or medium-maturing; the medium types dominated the spikes and grains; and the significant difference lied in the yielding of fresh spikes and dried grains. Different changes in nutrients content of grains of different types had been determined during optimum gathering and maturing stages. The content of protein, coarse cellulose, soluble sugar in grains at the stage of maturing were decreased comparing with the stage of optimum gathering but the content of total starch and coarse fat increased in reverse. The significant difference still lied in the thickness of grain peels.