Do you want to publish a course? Click here

\The effect of planting density on productivity and quality characters of maize (Zea mays var. Gouta 1)

تأثير الكثافة النباتية في بعض الصفات الإنتاجية و النوعية لصنف الذرة الصفراء غوطة 1

1639   0   214   0 ( 0 )
 Publication date 2014
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

The study was carried out at Abo Jarash farm, Faculty of Agriculture, Damascus University, during the growing season of 2012, where the maize cultivar "Gouta 1" was grown in three agricultural spacings (20, 30 and 40 cm between plants in the same row), with a fixed space (70 cm) between rows, according to the randomized complete block design and three replicates per treatment, in order to study the effect of the studied agricultural spacing on the following characters: plant height, length and weight of ear, number of kernel rows per ear, number and weight of kernels per ear, net percentage, hundred kernels weight, the kernel yield, the dry yield and the oil and protein contents in the kernels. Results showed a significant decrease in plant height from 155.31 to 130.10 cm, while a significant increase was observed in number of kernels per ear (from 310.05 to 373.82 kernels), in weight of kernels per ear (from 41.20 to 65.17 g) and in net percentage (from 61.61 to 91.51 %), respectively with the increase of agricultural spacing from 20 to 40 cm. However, the increase in these characters didn’t substitute the small number of plants in the vast spacing compared with the narrow spacing, which is reflected in kernel yield per unit of area that amounted to 3.19 and 2.04 tons/ha, respectively.


Artificial intelligence review:
Research summary
تُقفت الدراسة في مزرعة أبي جرش في كلية الزراعة بجامعة دمشق خلال الموسم الزراعي 2012، حيث زرعت بذور صنف الذرة الصفراء غوطة -1 على ثلاث مسافات (20، 30، و40 سم بين النبات والآخر ضمن الخط) وعلى مسافة ثابتة (70 سم) بين الخط والآخر. هدفت الدراسة إلى دراسة تأثير المسافات الزراعية على صفات ارتفاع النبات، طول العرنوس ووزنه، عدد الصفوف في العرنوس، عدد الحبوب ووزنها في العرنوس، نسبة التصافي، وزن المائة حبة، الغلة الحبية، الغلة من المادة الجافة، ونسبة الزيت والبروتين في الحبوب. أظهرت النتائج تناقص ارتفاع النبات مع زيادة المسافة بين النباتات، بينما زاد وزن الحبوب في العرنوس وعدد الحبوب ونسبة التصافي مع زيادة المسافة. ومع ذلك، لم تعوض هذه الزيادة في الصفات المذكورة قلة عدد النباتات في المسافة الواسعة مقارنة بالمسافة الضيقة، مما انعكس على الغلة الحبية في وحدة المساحة. كانت نسبة البروتين الأعلى معنويًا عند الزراعة على مسافة 30 سم بين النباتات. توصي الدراسة بزراعة صنف غوطة 1 على مسافة 20 سم بين النباتات للحصول على أعلى غلة حبية وعلى مسافة 40 سم للحصول على عرانيس كبيرة الحجم.
Critical review
دراسة نقدية: تقدم الدراسة معلومات قيمة حول تأثير الكثافة النباتية على إنتاجية ونوعية صنف الذرة الصفراء غوطة 1. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن تضمين تحليل اقتصادي لتحديد الجدوى الاقتصادية للمسافات الزراعية المختلفة. ثانيًا، لم تتناول الدراسة تأثير العوامل البيئية الأخرى مثل التربة والمناخ على النتائج، مما قد يؤثر على تطبيق النتائج في مناطق أخرى. أخيرًا، كان من الممكن استخدام تقنيات تحليلية أكثر تقدمًا لتقديم نتائج أكثر دقة وتفصيلًا.
Questions related to the research
  1. ما هي المسافات الزراعية التي تم دراستها في البحث؟

    تم دراسة ثلاث مسافات زراعية بين النباتات: 20 سم، 30 سم، و40 سم بين النبات والآخر ضمن الخط، مع مسافة ثابتة 70 سم بين الخطوط.

  2. ما هي الصفات الإنتاجية والنوعية التي تم قياسها في الدراسة؟

    تم قياس صفات ارتفاع النبات، طول العرنوس ووزنه، عدد الصفوف في العرنوس، عدد الحبوب ووزنها في العرنوس، نسبة التصافي، وزن المائة حبة، الغلة الحبية، الغلة من المادة الجافة، ونسبة الزيت والبروتين في الحبوب.

  3. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت النتائج تناقص ارتفاع النبات مع زيادة المسافة بين النباتات، وزيادة وزن الحبوب في العرنوس وعدد الحبوب ونسبة التصافي مع زيادة المسافة. ومع ذلك، لم تعوض هذه الزيادة قلة عدد النباتات في المسافة الواسعة، مما انعكس على الغلة الحبية في وحدة المساحة.

  4. ما هي التوصيات التي قدمتها الدراسة بناءً على النتائج؟

    توصي الدراسة بزراعة صنف غوطة 1 على مسافة 20 سم بين النباتات للحصول على أعلى غلة حبية، وعلى مسافة 40 سم للحصول على عرانيس كبيرة الحجم.


References used
Acciares, H.A. and M. S. Zuluaga, 2006. Effect of plant row spacing and herbicide use on weed aboveground biomass and corn grain yield. Planta Daninha, 24 (2): 287 – 293
Akcin, A., B. Sade, M. Mulayin, A. Topal, and A. Tamkoc, 1994. Effect of different cycocel application dates and rates and different plant densities on grain yield components, crude protein and some morphological character of maize hybrid TTM-813. Doga, Turk Tarmve Ormacilsik Dergisi, 17:1097- 1111
El-Metwally, H. F., I. M. Abouziena, and E. R. El- Desoki, 2008. Effect of plant spacing and weed control treatments on maize yield and associated weed in sandy soils. American-Eurasian J. Agric. And Environ. Sci., 4 (1): 09-17
rate research

Read More

This study was carried out in the farm of the Faculty of Agriculture University of Damascus during the growing season 2014, to study the productivity of the maize cultivar ("Gouta 82) and the hybrids (Basel 1 and Basel 2) under the influence of tw o plant densities 17.53 thousand plant. ha-1 (70x20cm) and 53.11 thousand plant. ha-1 (70x40cm).
Objective of this work was to investigate how plant density and nitrogen rate affects the growth , yield and its components in maize (Bassel 2 hybrid). The experiment was carried out, at the agricultural research centre in Snoubar Jableh, during t he 2008 and 2009 seasons, included 12 treatments which were the combination three plant population densities 71428/ha, 57142/ha, and 47619/ha and four N rates (0, 60, 120 and 180 kg/ha). The experimental design was a split-plot, with different densities as main plots, randomized in three complete blocks, and the fertilization as subplots. The data were analyzed by using “Mstat” statistical package. Increasing planting population density delayed anthesis and silking date, increased the anthesis-silking interval, plant height, ear height, grain yield, agronomic nitrogen efficiency and nitrogen use efficiency, but decreased ear leaf area, chlorophyll content, 1000 seed weight, number of grains/ear, shelling percentage (%), and grain protein content. Nitrogen fertilizer decreased tassilling and silking date, and nitrogen use efficiency, increasing plant and ear height, ear leaf area, chlorophyll content, number of grains/ear, ear weight,1000-grains weight, Shelling percentage, grain yield up to 120 kg N/ha, agronomic nitrogen efficiency and grain protein content.
The lack of information about the cultivation of coriander plant in Syria prompted us to study the effect of four plant densities (33.33،10، 13.33 and 20 plant/m2)، and four levels of phosphate fertilization (0107.2،160.8، and 214.4 of Superphospha te 46%) on some productive and quality traits of the coriander plant. This study was carried out in Tartous province during the growing season 2014، using Randomized Complete Block design with a Split Plot arrangement of treatments. The Results revealed that there were significant differences between the treatments for the whole traits، in addition to a significant interaction between density and phosphate fertilization. Although the densities (10، 13.33 and 20 plant/m2) varied in their effect، they had superiority upon the control(33،33)plant/m2، and the density 10 plant/m2 had more important effect in terms of increasing each of: branches number/plant، seed weight/plant، seeds number/inflorescence، protein content in plants and seeds and beta carotene and chlorophyll. However، the level 160.8k.g/h of P2O5 increased the number of inflorescences/plant، number of fruits/plant and seed weight/ inflorescence.
This study was conducted in Abu-Jarash farm at the Faculty of Agriculture, Damascus University during the main season 2013 to evaluate the effect of soil solarization and organic fertilization treatments on the productivity of some maize genotypes (Basel 1, Basel 2, Ghouta 1, Ghouta 82 and Local White). The experiment was laid out according to split-split plot design with three replications. The statistical analysis results clearly indicated to the existence of variability in the response of studied maize genotypes to soil solarization and organic fertilization treatments. The genotype Ghouta 82 surpassed in the traits of plant height, leaf area index, 100-kernel weight and grain yield (150.25 cm, 2.84, 28.10 g and 7.99 ton.ha-1) respectively, as compared to other studied genotypes and was closely followed by the genotype Basel 2 which recorded the highest number of rows per ear (13.83 row/ear). Soil solarization for 45 days before sowing and applying organic manures at the rate of 20 ton.ha-1 encouraged the traits of plant height, leaf area index, number of rows and grains per ear, 100-kernel weight which was reflected on grain yield. Therefore we can grow variety Ghouta 82 or hybrid Basel 2 to get higher yield of maize.
Six population seeds of three yellow maize hybrids were formed at Agricultural Research Center, Homs, during 2008 and 2009 growing seasons. Their plants were evaluated in 2010. The present work aims to determine the genetic parameters in six populati ons (P1, P2, F1, F2, BC1, and BC2). Mean square results showed significant differences among mean values for all traits in all crosses. Significant heterosis values were positive and relative comparing to mid and better parent for most traits. The potence ratios exceeded (+1) in all traits and crosses except ear height, indicating thus over-dominance. In breeding, depression values were significant in most traits for Cross-1, while their values were non- significant in all traits for Cross-2 except plant height, and also in Cross-3 except plant height and grain yield per plant. In most traits epestasis or dominance gene action occupied the first rank in the genetic effects in order of importance to cross, with the exception of number of rows per ear, number of kernels per row and grain yield per plant where additive gene action occupied the first rank for Cross-2 and Cross-1 respectively. Therefore, it could be suggested that selection for most studied traits in the subsequent generations will be relatively more effective than in the early generations.

suggested questions

comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا