تأثیر محلول‌پاشی نفتالین استیک اسید و تراش بوته بر رشد، عملکرد و کیفیت میوۀ خربزۀ توده خاتونی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناس ارشد ، دانشکدۀ کشاورزی، دانشگاه زنجان

2 استادیار، دانشکدۀ کشاورزی، دانشگاه زنجان

چکیده

به‌منظور بررسی آثار نفتالین استیک اسید و تراش بوته بر رشد، عملکرد و کیفیت میوۀ خربزۀ توده خاتونی، آزمایشی در قالب طرح بلوک‏های کامل تصادفی در مزرعۀ پژوهشی دانشکدۀ کشاورزی دانشگاه زنجان در سه تکرار انجام شد. تیمارهای آزمایش شامل محلول‏پاشی نفتالین استیک اسید در سه سطح (25،50 و 100 میلی‏گرم در لیتر در مرحلۀ چهار تا شش برگی و تشکیل میوه) و تیمارهای هرس شامل تراش بوته بود. نتایج نشان داد که محلول‏پاشی NAA سبب افزایش مقدار مواد جامد محلول در میوه شد و مقدار مواد جامد محلول از قسمت دم میوه به سمت نوک میوه افزایش یافت. بیشترین سطح برگ، عرض میوه و ضخامت گوشت میوه در تیمار100 میلی‏گرم در لیتر NAA در مرحلۀ تشکیل میوه مشاهده شد. کاربرد NAA مدت رسیدن میوه را کاهش داد. بیشترین تعداد میوه در بوته و عملکرد کل در تیمار NAA 50 میلی‏گرم در لیتر در مرحلۀ چهار تا شش برگی به دست آمد. همچنین بیشترین وزن متوسط میوه و عملکرد بازارپسند در تیمار تراش بوته حاصل شد. با توجه به نتایج می‏توان محلول‏پاشی 100 میلی‏گرم در لیتر NAA در مرحلۀ تشکیل میوه را روشی جایگزین برای عمل تراش بوته‏ها که کارd وقتگیر و هزینه‏بر است پیشنهاد کرد.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of foliar application of naphthalene acetic acid and plant thinning on growth, yield and fruit quality of melon (Cucumis melo cv. Khatooni).

نویسندگان [English]

  • Meysam eliyasi moghaddam 1
  • Taher Barzegar 2
  • Zahra ghahremani 2
1 Former M. Sc. Student, Department of Horticulture Science, Faculty of Agriculture, University of Zanjan
2 Assistant Professor, Department of Horticulture Science, Faculty of Agriculture, University of Zanjan
چکیده [English]

In order to study the effects of foliar application of NAA and plant thinning on growth, yield and fruit quality of melon genotype Khatooni, the experiment was conducted in a randomized complete block design with three replications at Research field of Faculty of Agriculture, University of Zanjan. Treatments consisted of foliar application of NAA at three levels (25, 50 and 100 mg.L-1 at 4-6 true leaf and fruit set stages), pruning (pruning against nonpruning) and plant thinning. Treatment with NAA increased the total soluble solids content of fruit. An obvious gradient of TSS was detected, ascending from pedicel to umbilicus part of mesocarp. The maximum leaf area, fruit width and mesocarpe thickness was observed in NAA (100 mg.L-1 at fruit set stage). NAA caused a significant decrease in time to ripening. Among the treatments, the highest number of fruits per plant and total yield was recorded by using NAA (50 mg.L-1 at 4-6 leaf stage). Also maximum mean fruit weight and marketable yield was obtained in plant thinning treatment. According to the results, foliar application of NAA (100 mg.L-1 at fruit set stage) can be proposed instead of plant thinning practice that require too much time and labor for the farmers.
 

کلیدواژه‌ها [English]

  • melon
  • Flesh firmness
  • Total soluble solid
  • yield
  • fruit set
 
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