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以香型杂交稻培杂软香为材料,采用盆栽试验,研究了施用镧(La)肥对植株各器官香气含量以及稻米品质、产量性状等的影响。结果表明,施用镧肥能提高培杂软香齐穗后籽粒和茎秆的香气含量,提高齐穗后7 d和14 d茎秆中的游离脯氨酸和总游离氨基酸含量以及籽粒中的脯氨酸氧化酶和吡咯啉乙酰基转移酶活性;施用镧肥还有利于提高结实率和千粒重,促进产量增加,改善稻米品质。
A pot experiment was conducted to study the effects of lanthanum (La) fertilizers on the aroma content of plant organs and the quality and yield traits of rice plants. The results showed that the application of lanthanum fertilizer could increase the aroma content of kernels and stalks after harvesting panicle head and improve the content of free proline and total free amino acids in the stalks on the 7th and 14th day after heading, Acid oxidase and pyrroline acetyltransferase activity. The application of lanthanum fertilizer is also beneficial to improve seed setting rate and 1000-grain weight, promote the increase of yield and improve the quality of rice.