| تعداد نشریات | 284 |
| تعداد نشریات سازمان | 82 |
| تعداد شماره‌ها | 3,044 |
| تعداد مقالات | 34,047 |
| تعداد مشاهده مقاله | 46,439,695 |
| تعداد دریافت فایل اصل مقاله | 77,507,495 |
اثرات فاصله ردیف و مدت زمان کنترل علف های هرز روی عملکرد ،اجزای عملکرد و میزان روغن کلزا | ||
| دانش علف‌های هرز ایران | ||
| مقاله 9، دوره 5، شماره 2، اسفند 1388، صفحه 79-90 اصل مقاله (213.72 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| مریم رجبیان1؛ جعفر اصغری1؛ سید محمد رضا احتشامی1؛ محمد ربیعی2 | ||
| 1دانشگاه گیلان | ||
| 2موسسه تحقیقات برنج | ||
| چکیده | ||
| 1 به منظور بررسی اثرات فاصله ردیف کاشت و مدت کنترل علف‌های هرز بر عملکرد، اجزای عملکرد و درصد روغن کلزا، آزمایشی در سال زراعی 88-1387 به صورت فاکتوریل در قالب طرح بلوک های کامل تصادفی در 3 تکرار در موسسه تحقیقات برنج کشور واقع در شهرستان رشت به اجرا درآمد. فاکتورهای آزمایشی شامل فاصله ردیف در 2 سطح (25 و 35 سانتی متر) و کنترل علف های هرز در 7 سطح (شامل وجین دستی تا پایان مراحل سبز شدن، 2 برگی، 4 برگی، 8 برگی و ظهور (تشکیل) جوانه های گل) بود. پس از این مراحل، به علف های هرز اجازه رقابت با گیاه زراعی داده شد. دو تیمار تداخل و کنترل کامل نیز به عنوان شاهد در نظر گرفته شدند. صفات ارزیابی شده شامل تعداد خورجین در بوته، تعداد دانه در خورجین، وزن هزار دانه، عملکرد دانه، درصد (مقدار) روغن و عملکرد روغن بود. نتایج نشان داد که فاصله ردیف های کاشت مختلف اثر معنی داری بر تمامی صفات به جز درصد روغن داشت. افزایش فاصله ردیف کاشت با افزایش تعداد خورجین در بوته و وزن هزاردانه همراه بود. سایر صفات با افزایش فاصله ردیف کاشت، به طور معنی داری کاهش یافتند. علاوه بر این، افزایش مدت کنترل علف های هرز، تمامی صفات به جز درصد روغن را به طور معنی داری افزایش داد. برهمکنش فاصله ردیف × مدت کنترل علف های هرز نیز بر تمامی صفات به جز درصد روغن و وزن هزار دانه معنی دار بود. بر اساس نتایج، بیشترین مقدار عملکرد دانه و روغن مربوط به فاصله ردیف 25 سانتی متر در تیمار کنترل کامل بوده و کمترین میزان این صفات نیز به فاصله ردیف 35 سانتی متر در تیمار تداخل کامل اختصاص داشت. | ||
| کلیدواژه‌ها | ||
| فاصله ردیف؛ مدت کنترل علف های هرز؛ عملکرد دانه؛ میزان روغن؛ کلزا | ||
| عنوان مقاله [English] | ||
| Effects of Row Spacing and Weed Control Duration on Yield, Yield Components and Oil Content of Canola | ||
| نویسندگان [English] | ||
| maryam radjabian1؛ jafar asghari1؛ mohammad ehteshami1؛ mohammad rabiee2 | ||
| چکیده [English] | ||
| In order to study the effects of row spacing and weed control duration on yield, yield components and oil content of canola, a factorial experiment was conducted using randomized complete block design with 3 replications. The factors comprised row spacing at 2 levels (25 and 35 centimeter) and weed control 4, 8 leaf stages and formation of flower buds. Weeds were permitted to grow by the crop after the above mentioned growth stages. Two check treatments as control, including weedy and weed free were also selected. Evaluated traits were number of pods.plant-1, number of grains.pod-1, 1000-grain weight, grain yield, oil content and oil yield. Results showed that different row spacing had significant effect on all traits except oil content. Increase in row spacing was significantly accompanied by increase in pod number.plant-1 and 1000-grain weight. Other traits were significantly decreased with increasing row spacing. In addition, increase in weed control duration resulted in significant increase in all traits except oil content. The interaction of row spacing × weed control duration was also significant for all traits except 1000-grain weight and oil content. Based on the results, the highest values of grain and oil yield were related to 25 centimeter row spacing on total weed free check and the lowest amounts of these traits were obtained from 35 centimeter row spacing on weedy check treatment. | ||
| کلیدواژه‌ها [English] | ||
| row spacing, weed control duration, Grain yield, Oil content, Canola | ||
| مراجع | ||
|
Abadian, H., Latifi, N., Kamkar, B. and Bagheri, B. 2008. The effect of late sowing date and plant density on quantitative and qualitative characteristics of canola (RGS-003) in Gorgan. Journal of Agricultural Sciences and Natural. Resources 15:78-87 (In Persian with English summary). Abdolrahmani, B. 2003. Effects of plant density on yield and agronomic traits of sunflower cv. Armavirsky under dryland condition in Maragheh. Iranian Journal of Crop Sciences 5:216-224 (In Persian with English summary). Aghaalikhani, M., Yaghoobi, S. R. 2008. Critical period of weed control in winter canola (Brassica napus L.) in a semi-arid region. Pakistan Journal of Biological Sciences 11:773-777. Ali, Y., Ahsanul Hag, M., Tahir, G. R. and Ahmad, N. 1999. Effect of inter and intra row spacing on the yield and yield components of chickpea. Pakistan Journal of Biological Sciences 2:305-307. Ball, R. A., Purcell, L. C. and Vories, E. D. 2000. Optimizing soybean plant population for a short-season production system in the southern USA. Crop Science 40:757-764. Eftekhari, A., Shirani Rad, A. H., Rezai, A. M., Salehian, H. and Ardakani, M. R. 2005. Determining of critical period of weed control in soybean (Glycine max L.) in Sari region. Iranian Journal of Crop Sciences. 7: 347-364 (In Persian with English summary). Eilkaee, M. N., Emam, Y. 2003. Effect of plant density on yield and yield components in two winter oilseed rape (Brassica napus L.) cultivars. Iranian Journal of Agricultural Sciences 34:509-515 (In Persian with English summary). Faraji, A. 2005. Evaluation of the effect of sowing date on grain and oil yield and yield components of four canola genotypes in
Gonbad. Iranian Journal of Crop Sciences 7:189-202 (In Persian with English summary). Fathi, G., Banisaidy, A., Siadat, S. A. and Ebrahimpoor, F. 2002. Effect of different levels and plant density on grain yield of rapeseed , cultivar pf 7045 in Khuzestan conditions. The Scientific Journal of Agriculture 25:43-58. Fernando, H. A., Calvino, P., Cirilo, A. and Barbieri. P. 2002. Yield responses to narrow rows depend on increased radiation interception. Agronomy Journal 94:975-980. Haddadchi, G. R., Gerivani, Z. 2009. Effects of phenolic extracts of canola (Brassica napus L.) on germination and physiological responses of soybean (Glycine max L.) seedlings. International Journal of plant production, 3:1.63-74. Hamzei, J., Dabbagh Mohammady Nasab, A., Rahimzadeh Khoie, F., Javanshir, A. and Moghaddam, M. 2007. Critical period of weed control in three winter oilseed rape (Brassica napus L.) cultivars. Turkish Journal of Agriculture. 31:83-90. Keramati, S., Pirdashti, H., Esmaili, M. A., Abbasian, A. and Habibi, M. 2008. The critical period of weed control in soybean (Glycine max (L.) Merr.) in north of Iran conditions. Pakistan Journal of Biological Sciences. 11:463-467. Khoshnam, M. 2007. Effect of planting distances on critical period of weed control in canola (Brassica napus L.) . M.Sc. Thesis. Faculty of Agriculture College, Guilan University. Iran. Pp:86. (In Persian with English summary). Leach, J. E., Stevenson, H. J., Rainbow, A. J. and Mullen, L. A. 1999. Effects of high plant populations on the growth and yield of winter oilseed rape (Brassica napus L.). Journal of Agricultural Science 132:173-180. Majnon Hosseini, N., Alizade, H. M. and Malek Ahmadi, H. 2006. Effects of plant density and nitrogen rates on the competitive ability of canola (Brassica napus L.) against weeds. Journal of Agricultural Science and Technology 8:281-291. Ozer, H. 2003. The effect of plant population densities on growth, yield and yield components of two spring rapeseed cultivars. Plant and Soil Environment. 49:422-426. Ozoni Davaji, A. 2006. Effects of plant density and planting pattern on yield, yield components and growth indices of apetalous flowers and petalled rapeseed (Brassica napus L.). M.Sc. Thesis. Faculty of Agriculture College, Guilan University. Iran. Pp:133.(In Persian with English summary). Rahman, I., Ahmad, H., Serajuddin, I., Ahmad, I., Abbasi, F., Islam, M. and Ghafoor. S. 2009. Evaluation of rapeseed genotypes for yield and oil quality under rainfed conditions of district Mansehra. African Journal of Biotechnology 8:6844-6849 Roshdy, A., Shams El-Din, G. M., Mekki, B. B. and Elewa, T. A. A. 2008. Effect of weed control on yield and yield components of some canola varieties (Brassica napus L.). American-Eurasian Journal of Agricultural& Environmental Sciences 4:23-29. Safahani Langerodi, A., Kamkar, B., Zand, E., Bagherani, N. and Bagheri, M. 2008. Reaction of grain yield and its components of canola (Brassica napus L.) cultivars in competition with wild mustard (Sinapis arvensis L.) in Gorgan. Iranion Journal of Crop Sciences 9:356-370. (In Persian with English summary). Salehi, B. 2004. Effect of row spacing and plant density on grain yield and yield components in maize (cv. Sc 704) in Miyaneh. Iranian Journal of Crop Sciences. 6:383-394. (In Persian with English summary). Sedghi, M., Seyed Sharifi, R., Namvar, A., Khandan-e-Bejandi, T. and Molaei, P. 2008. Responses of sunflower yield and grain filling period to plant density and weed interference. Research Journal of Biological Sciences 3:1048-1053. Shahvardi, M., Hejazi, A., Rahimian Mashhadi, H. and Torkamani, A. 2002. Determination of the critical period weed control in sunflower (Helianthus annuus cv. Record). Iranian Journal of Crop Sciences 4:152-162. (In Persian with English summary). Shekari, F., Javanshir, A. 2000. Enhancement of canola seed germination and seedling emergence water potential by priming. Journal of Field Crop (Turkish) 5:54-60. Svecnjak, Z., Varga, B. and Butorac, J. 2006. Yield components of apical and subapical ear contributing to the grain yield responses of prolific maize at high and low plant populations. Journal of Agronomy and Crop Science. 192:37-42.
Tollenaar, M., Dibo, A. A., Aguilera, A., Weise, F. and Swanton. C. J. 1994. Effects of crop density on weed interference in maize. Agronomy Journal 81:591-595. Turgut, L., Duman, L., Bilgili, U. and Acikgoz, E. 2005. Alternate row spacing and plant density effects in forage and dry matter yield of corn hybrids (Zea mays L.). Journal of Agronomy and Crop Science 191:140-151. Yasari, E., Patwardhan, A. M., Ghole, V. S., Omid, G. C. and Ahmad. A. 2008. Relationship of growth parameters and nutrients uptake with canola (Brassica napus L.) yield and yield contribution at different nutrients availability. Pakistan Journal of Biological Sciences 11:845-853. Yazdifar, S., Amini, I., Ramea, V. 2007. Evaluation of row spacing and seed rates effects on yield, yield components and seed oil in spring canola (Brassica napus L.) cultivar. Journal of Agricultural Sciences and Natural Resources 13:58-65. (In Persian with English summary). Yazdifar, SH., Ramea, V. 2009. Effects of row spacing and seeding rates on some agronomical traits of spring canola (Brassica napus L.) cultivars. Journal of Central European Agriculture 10:115-121.
| ||
|
آمار تعداد مشاهده مقاله: 2,242 تعداد دریافت فایل اصل مقاله: 1,637 |
||