论文部分内容阅读
通过水培方式分别研究了缺镁、铁、硼处理对枳、香橙、红橘、崇义野橘4种柑橘砧木植株和根系生长及养分吸收的影响。结果表明:缺镁处理下,红橘在株高、叶片数、叶绿素含量、总根长、总根表面积及镁吸收速率等变化中表现出较强的抗缺镁特性,崇义野橘次之,枳、香橙较差;缺铁处理下,香橙在株高、叶片数、植株干样质量、总根体积、总根表面积和铁吸收速率等变化中表现出较强的抗缺铁特性,红橘次之,枳、崇义野橘较差;缺硼处理下,红橘在总根数、总根表面积、总根体积及硼吸收速率的变化中表现出较强的抗缺硼能力,而崇义野橘的地上部较耐缺硼,香橙、枳则表现出不耐缺硼。
The effects of magnesium deficiency, iron deficiency and boron treatment on the growth and nutrient absorption of four citrus rootstocks of Trifoliate orange, Orange, Red tangerine and Chongyi wild orange were studied by hydroponics. The results showed that under the magnesium deficiency treatment, the red tangerine showed strong anti-magnesium deficiency in the changes of plant height, leaf number, chlorophyll content, total root length, total root surface area and magnesium absorption rate, , Citrus aurantium and orange are worse. Under the treatment of iron deficiency, the orange shows strong resistance to iron deficiency in plant height, leaf number, dry weight of plant, total root volume, total surface area of root and iron absorption rate , Followed by red tangerine, trifoliate orange and Chongyi wild orange. Under the condition of boron deficiency, red orange showed strong resistance to boron deficiency in the changes of total root number, total root surface area, total root volume and boron absorption rate , While Chongyi wild orange more resistant to boron deficiency, orange, orange is impatient with boron deficiency.