Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch

ZHU Haijun, LIU Guangqin, CAO Fuliang, ZANG Xu, ZHOU Beibei, SHENG Jingya

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (04) : 75-78.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (04) : 75-78. DOI: 10.3969/j.jssn.1000-2006.2012.04.015

Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch

  • ZHU Haijun1,2, LIU Guangqin1, CAO Fuliang2*, ZANG Xu3, ZHOU Beibei1, SHENG Jingya1
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Abstract

Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch were investigated using the one year-old seedling of C. illinoensis as the research object. Results showed that the seedling growth was promoted by spraying ZnSO4 with a low concentration. In contrary, the seedling growth was inhibited by ZnSO4 with a high concentration. The similar trend was also observed under nut-presoaking treatment. Leaf chlorophy Ⅱ content presented a trend “declining-increasing-declining rapidly” with ZnSO4 rate increasingly. The ratio of zinc in pecan seedlings was significantly increased after leaf zinc spraying. It was found that the highest amount of zinc was detected in pecan leaves, whereas roots gathered the lowest. However, zinc content was the highest in shoot, the lowest in root when used nut-presoaking method. Summarily, 0.4% of foliar applied ZnSO4 is recommended in Zn fertilization of pecan.

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ZHU Haijun, LIU Guangqin, CAO Fuliang, ZANG Xu, ZHOU Beibei, SHENG Jingya. Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2012, 36(04): 75-78 https://doi.org/10.3969/j.jssn.1000-2006.2012.04.015

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