Influence of Shading, GA3 and NPK fertilizer on the growth and development of Myrtle Myrtus communis plants.

Tikrit journal for agricultural sciences Pub Date : 2024-03-31 DOI:10.25130/tjas.24.1.4

Hizrat Mohammed Qasim, Y. Hammo

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Abstract

This study was conducted during the period between 23th September 2021 to 1st July 2022, in the nursery of Duhok University, Kurdistan region, Iraq. Aiming to evaluate effect of the Shade (0 and 50) %, Gibberellic acid (0, 250, and 500) mg.l-1 and three levels of NPK fertilizer control (0, 0, 0), low (150, 100, 75), and high (300,200,150) mg.l-1 on the growth and development for Myrtle (Myrtus communis) plants. This experiment was performed by use randomized complete block design (RCBD). The best results include the following: 50% shade significantly increased the plant height (36.21) cm, leaf area (4.41) cm2, total chlorophyll (57.41) spad, vegetative dry weight (14.62) gm, plant growth index (9230) cm3 and number of premier tricussate shoots (14.37) branch/plant compared with 0%. spray with 500 mg.l-1 GA3 significantly increased plant height (35.58) cm, number of branches, leaf area (2.84) cm2, total chlorophyll (57.28) spad, dry weight (13.67) gm, plant growth index (8098) cm3, number of premier tricussate shoots (14.37) branch/plant. Also used NPK fertilizer caused significantly increase in all these traits, the best interaction treatment among the three factors include 50% shade with 500 mg.l-1 GA3 and (300,200,150) mg.l-1 NPK that gave the highest significant values for the plant height (43.53) cm, leaf area (4.53) cm2, total chlorophyll (64.57) spad, vegetative dry weight (20.27) gm, plant growth index (15580) cm3 and number of premier tricussate shoots (20.67) branch/plant compared with control (0 shade, 0 GA3, (0,0, 0) mg.l-1) .

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遮光、GA3 和氮磷钾肥对桃金娘植物生长发育的影响

本研究于 2021 年 9 月 23 日至 2022 年 7 月 1 日期间在伊拉克库尔德斯坦地区杜胡克大学的苗圃中进行。目的是评估遮光率（0 和 50）%、赤霉素（0、250 和 500）毫克/升以及氮磷钾肥对照（0、0、0）、低（150、100、75）和高（300、200、150）毫克/升三种水平对桃金娘（Myrtus communis）植株生长发育的影响。该实验采用随机完全区组设计（RCBD）。最佳结果如下与 0% 遮荫率相比，50% 遮荫率明显增加了株高（36.21）厘米、叶面积（4.41）平方厘米、叶绿素总量（57.41）spad、无性系干重（14.62）克、植物生长指数（9230）立方厘米和每株首生三叉枝数量（14.37）。喷施 500 毫克/升 GA3 能显著增加株高（35.58）厘米、分枝数、叶面积（2.84）平方厘米、叶绿素总量（57.28） spad、干重（13.67）克、植株生长指数（8098）立方厘米、三叶一枝花分枝数（14.37）/株。使用氮磷钾肥料也会使所有这些性状显著增加，三个因子中最好的交互处理包括 50%遮光与 500 毫克/升 GA3 和（300,200,150）毫克/升氮磷钾，其植株高度（43.53）厘米、叶面积（4.53）平方厘米、叶绿素总量（64.57） spad、无性系干重（20.27）克、植株生长指数（15580）立方厘米和三叉首芽数（20.67）枝/株。

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Tikrit journal for agricultural sciences

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0.10

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