اثر کاربرد کود ورمی‎کمپوست بر صفات فیزیولوژیک ژنوتیپ‎های کلزا (Brassica napus L.) در دو تاریخ کاشت

نوع مقاله: علمی پژوهشی

نویسندگان

1 دانشجوی دکتری تخصصی، گروه علوم زراعی و باغی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران

2 استاد گروه علوم زراعی و باغی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران.

3 استاد مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سازمان تحقیقات،آموزش و ترویج کشاورزی کرج، ایران.

چکیده

به­منظور بررسی اثر کاربرد کود ورمیکمپوست بر صفات فیزیولوژیک ژنوتیپهای کلزا در تاریخ کاشتهای مختلف، آزمایشی به­صورت فاکتوریل اسپلیت پلات در قالب طرح بلوک‎های کامل تصادفی با سه تکرار در مزرعه تحقیقاتی مؤسسه اصلاح و تهیه نهال و بذر کرج انجام گردید. در این آزمایش فاکتور تاریخ کاشت در دو سطح شامل: تاریخ کاشت بهینه منطقه: 25 مهرماه و تاریخ کاشت تأخیری: 5 آبان ماه و کود ورمی‎کمپوست در دو سطح شامل: عدم کاربرد کود (شاهد) و کاربرد کود (20 تن در هکتار) به صورت فاکتوریل در کرت‎های اصلی و ژنوتیپهای کلزا شامل: BAL104، DIE710.08، BAL102،FJL330 ،FJL290  و Okapi در کرت‎های فرعی قرار گرفتند. نتایج نشان داد، که صفات عملکرد، اجزای عملکرد، درصد روغن دانه و ترکیب اسیدهای چرب در ژنوتیپ‎های مختلف متأثر از تاریخ‎های‎ مختلف کاشت بوده است. بیشترین عملکرد دانه (5853 و 5762 کیلوگرم در هکتار)، درصد روغن دانه (98/43 و 85/43 درصد)، اولئیک اسید (23/65 و 93/64 درصد) و لینولئیک اسید (51/20 و 37/20 درصد) در تاریخ کاشت بهینه و لاینهای FJL290 و BAL102 به­دست آمد که نشان­دهنده پتانسیل بالای عملکرد این لاینها در این تاریخ کاشت بود. همچنین، کاربرد تیمار کودی ورمی‎کمپوست باعث افزایش کلیه صفات مورد مطالعه گردید. نتایج نشان داد که لاینهای FJL290 و BAL102 در تاریخ کاشت بهینه (25 مهرماه) همراه با به ­کارگیری کود ورمیکمپوست میتوانند با حداکثر رشد، مطلوبترین عملکرد دانه و روغن را در اقلیم مورد مطالعه تولید نمایند.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of Vermicompost Fertilizer Application on Physiological Characteristics of Rapeseed (Brassica napus L.) Genotypes in Two Sowing Dates

نویسندگان [English]

  • Elnaz Samadzadeh ghale joughi 1
  • Eslam Majidi Hervan 2
  • Amir Hoseain Shirani Rad 3
  • Ghorban Noormohammadi 2
1 Ph.D. Student, Department of Agronomy and Horticultural Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.
2 Prof., Department of Agronomy and Horticultural Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.
3 Prof., Department of Agronomy, Seed and Plant Improvement Institute, AREEO, Karaj, Iran.
چکیده [English]

To investigate the effect of vermicompost fertilizer application on physiological characteristics of rapeseed (Brassica napus L.) genotypes in different sowing dates, an experiment was conducted using randomized complete block design arranged in factorial split plot with three replicates. The factorial combination of two sowing dates 17 and 27 October, considered as optimum and late sowing dates, respectively and two vermicompost rates, 0 and 20 t.ha-1 were allocated to the main plots and six canola genotypes (BAL104, DIE710.08, BAL102, FJL290, FJL330, Okapi) were randomized in sub-plots. The results indicated that seed yield, yield components, seed oil percentage and fatty acid compositions increased in all genotypes by different sowing dates. The highest seed yield (5853 and 5762 kg.ha-1), seed oil percentage (43.98 and 43.85%), oleic acid (65.23 and 64.93%) and linoleic acid (20.51 and 20.37%) were produced at optimum sowing date by FJL290 and BAL102 lines, which represent a high potential of this genotypes under this sowing date. In addition, application of vermicompost increased all traits under study. The result olso indicated that FJL290 and BAL102 lines can produce the highest seed and oil yields in the region, if the seeds were sown at 17 October 17th and application of 20 t.ha-1 of vermicompost.

کلیدواژه‌ها [English]

  • Fatty Acids
  • genotype
  • Sowing date
  • Seed Oil percentage
  • Seed yield
  • vermicompost
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