Evaluation of Different Growing Media and Nitrogen Fertilizer on Some Morphological Traits in Spathiphyllum wallisii L.
محورهای موضوعی : مجله گیاهان زینتیSeyyed Fazel Fazeli Kakhki 1 , Ali Reza Sharifian 2 , Nasser Beikzadeh 3
1 - Khorasan Razavi Agricultural and Natural Resources Research and Education Center, AREEO, Mashhad, Iran
2 - PhD student in Ornamental Plants, Azad University of Arak, Iran
3 - Khorasan Razavi Agricultural and Natural Resources Research and Education Center, AREEO, Mashhad, Iran
کلید واژه: Root dry weight, Leaf number, Shoot dry weight, Length of petiole,
چکیده مقاله :
In order to evaluate different growing media and nitrogen fertilizer (urea) on some morphological traits of Spathiphyllum, an experiment was carried out in a split-plot arrangement based on a completely randomized block design in three replications in greenhouse conditions in 2018. The main plot was assigned to different growing media including T1: leaf-mold, T2: vermicompost, and T3: a mixed growing medium (peat moss 20% + cocopeat 50% + perlite 30%) and the subplot was assigned to urea fertilizer at different rates of 0, 1, 2, 3 and 4 g/L. Results showed that the mixed growing medium plus 2 g/L urea fertilizer had significant positive effects on all traits. According to the results for the interaction effects, the highest shoot fresh weight (26.5 g/plant), shoot dry weight (3.75 g/plant), root fresh weight (35.5 g/plant), root dry weight (4.87 g/plant), length petiole (55.1 cm), and leaf number (12.1) were obtained from the mixed growing medium plus 2 g/L urea fertilizer, while the traits were the least in all studied growing media plus 0 g/L urea fertilizer. The increase in the urea fertilizer from 0 to 2 g/L increased shoot dry weight and petiole length while the urea fertilizer at the rates of 3 and 4 g/L decreased them. The growing media with an EC of 2 dS/m, high porosity, and high water holding capacity can have significant effects on improving morphologic traits of Spathiphyllum plants.
به منظورمطالعه بسترهای مختلف کشت و کود ازته با منشا اوره بر برخی صفات مورفولوژیکی گیاه زینتی اسپاتی فیلوم، آزمایشی بهصورت طرح کرتهای خرد شده بر پایه طرح بلوکهای کامل تصادفی در سه تکرار و در شرایط گلخانه در سال 1397 اجرا شد. پلات اصلی شامل محیط کشتهای خاک برگ، ورمیکمپوست و یک محیط رشد مخلوط (مرکب از 20 درصد پیت موس، 50 درصد کوکوپیت و 30 درصد پرلیت) بود و پلات فرعی نیز مقادیر مختلف کود اوره (شامل 0، 1، 2، 3 و 4 گرم در لیتر) بود. نتایج نشان داد که محیط رشد مخلوط به علاوه دو گرم در لیتر کود اوره، اثر مثبت معنیداری بر تمام صفات دارد. با توجه به نتایج اثرات برهمکنش، بیشترین وزن تر ساقه (5/26 گرم در هر بوته)، وزن خشک ساقه (75/3 گرم در هر بوته)، وزن تر ریشه (5/35 گرم در هر بوته)، وزن خشک ریشه (87/4 گرم در هر بوته)، طول دمبرگ (1/55 سانتیمتر) و تعداد برگ (1/12) از محیط رشد مخلوط به علاوه دو گرم در لیتر کود اوره حاصل شد در حالی که مقدار این صفات در تمام محیطهای رشد بدون کود اوره، حداقل بود. افزایش کود اوره از صفر به دو گرم در لیتر، باعث افزایش وزن خشک ساقه و طول دمبرگ شد در حالی که استفاده از سه و چهار گرم در لیتر کود اوره، مقدار این صفات را کاهش داد. محیطهای رشد با هدایت الکتریکی دو دسی زیمنس در متر، تخلخل بالا و ظرفیت نگهداری بالای آب میتواند اثرات قابل ملاحظهای بر بهبود صفات موفولوژیکی گیاه اسپاتیفیلوم داشته باشد.
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