硫硼营养对烟叶石油醚提取物合成的影响

硫素和硼素营养对烟叶石油醚提取物的合成起着重要作用。通过田间试验研究硫素、硼素营养对与烟叶石油醚提取物合成有关的6-磷酸葡萄糖脱氢酶、异柠檬酸裂解酶、磷脂酸磷酸酯酶活性的影响及提高石油醚提取物含量的实际效果。试验结果表明,适量的硫、硼营养配合施用对于提高烟叶中石油醚提取物含量有一定的促进作用,当硫素和硼素分别为75、3 kg/hm2时,烤烟不同生育期石油醚提取物含量最高,烘烤后烟叶中部叶石油醚提取物含量为7.84%;6-磷酸葡萄糖脱氢酶、异柠檬酸裂解酶、磷脂酸磷酸酯酶的活性最强。

Influence between sulfur nutrition boron nutrition and the synthesis of flue cured tobacco petroleum extract

Sulfur nutrition and boron nutrition are closely related with the synthesis of flue-cured tobacco petroleum extract.The experiment was conducted to study the activities of glucose-6-phosphate dehydrogenase,isocitrate lyase,phosphatidate phosphatase related to tobacco petroleum extract with sulfur nutrition and boron nutrition and the actual effect of improving the content of petroleum extract.The results indicated that,proper sulfur nutrition and boron nutrition fertilization would help to improve the content of tobacco petroleum extract.When the fertilization with 75 kg/hm2 sulfur nutrition and 3 kg/hm2 boron nutrition,the content of flue-cured tobacco petroleum extract was the highest during different developmental stages,the content of cental foliage petroleum extract after baking was 7.84%;The activities of glucose-6-phosphate dehydrogenase,isocitrate lyase,phosphatidate phosphatase were the highest.