fa تأثیر عمق گوده‌های کاشت بر عملکرد و اجزاء عملکرد سه رقم هندوانه در شرایط دیم با آبیاری تکمیلی عمومى General پژوهشي Research <p dir="RTL" style="margin: 0cm 0cm 0pt; text-align: justify; line-height: 80%; -ms-text-justify: kashida; text-kashida: 0%;"><font color="#000000"><b><span -="" .="" 1388="" b="" dir="LTR" face="Times New Roman" font="" font-size:="" lang="FA" mso-ascii-font-family:="" mso-hansi-font-family:="" new="" span="" style="line-height: 80%; font-family: " times="">محبوبی) کرت‌های اصلی و سه عمق گوده کاشت (15، 20 و 25 سانتی‌متر) کرت‌های فرعی را تشکیل می‌دادند. نتایج پژوهش نشان داد عملکرد هر سه رقم مورد مطالعه در سال 1387 به‌دلیل شرایط مطلوب‌تر بارندگی، نسبت به سال 1388 بالاتر بود. رقم محبوبی با داشتن 22440 و 18680 کیلوگرم عملکرد در هکتار به‌ترتیب در سال‌های 1387 و 1388 بالاترین مقدار عملکرد را نسبت به دو رقم دیگر تولید نمود. بالاترین مقدار مواد جامد محلول در میوه (درجه بریکس 80/8) مربوط به رقم چارلستون گری بود. </span></b><b><span b="" font-size:="" lang="FA" mso-ascii-font-family:="" mso-hansi-font-family:="" style="line-height: 80%; font-family: ">دو رقم چارلستون گری و محبوبی به‌ترتیب با تولید 254 و 256 کیلوگرم بذر در هکتار در سال 1387 و 220 و 223 کیلوگرم بذر در سال 1388 بالاترین مقادیر عملکرد بذر را داشتند. </span></b><b><span style=&quot;line-height: 80%; font-family: &quot; b=&quot;&quot; lotus&quot;;=&quot;&quot; font-size:=&quot;&quot; 11pt;=&quot;&quot; mso-ascii-font-family:=&quot;&quot; &quot;times=&quot;&quot; new=&quot;&quot; roman&quot;;=&quot;&quot; mso-hansi-font-family:=&quot;&quot; roman&quot;;&quot;=&quot;&quot; lang=&quot;FA&quot;>انتخاب عمق گوده 25 سانتی‌متری با عملکرد 24890 و 20900 کیلوگرم میوه در هکتار میوه و 253 و 237 کیلوگرم بذر در هکتار به‌ترتیب در سال‌های 1387 و 1388 بهترین عمق گوده برای کشت تشخیص داده شد. به‌طور خلاصه نتایج این پژوهش نشان داد با استفاده از رقم محبوبی و عمق گوده کشت 25 سانتی‌متری می‌توان در شرایط دیم عملکرد میوه و بذر مناسبی به‌دست آورد.</b></font></p> <p style="margin: 0cm 0cm 0pt; text-align: justify;"><font face="Times New Roman"><font color="#000000"><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">To investigate the effect of </span><span new="" style="font-size: 10pt; mso-bidi-font-family: " times="">depth of planting holes </span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">on yield and yield components of </span><span new="" style="font-size: 10pt; mso-bidi-font-family: " times="">three cultivars of watermelon in dry land conditions</span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">, a two-year study (</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">2006</span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">-2007) was carried out in Varamin Agricultural Research Center, using a split plot randomized complete blocks design in three replications. Three </span><span new="" style="font-size: 10pt; mso-bidi-font-family: " times="">cultivars of watermelon</span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> (</span><span lang="EN-CA" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">Mahbube, Charleston Gray and Sugar Baby</span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">) were assigned to main plots and three </span><span new="" style="font-size: 10pt; mso-bidi-font-family: " times="">depths of planting holes </span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">(15, 20 and 25 cm) were assigned to sub plots.</span><span lang="EN" style="font-size: 10pt;"> </span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">Higher fruit yields for three studied cultivars in 2006, compared with 2007, were obtained due, perhaps, to a more favorable rainfall conditions. Cultivar </span><span lang="EN-CA" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">Mahbube</span></font><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""><font color="#000000"> fruit yield in the first and second years was found to be 22440 and 18680 kg ha^-1</font><font color="#000000"> respectively,</font></span><font color="#000000"><span lang="EN" style="font-size: 10pt;"> </span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">out-yielding the other varieties.</span><span style="font-size: 10pt;"> </span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">The greatest total soluble solid content in the fruit (8.80&deg; Brix) was</span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> recorded for cultivar Charleston Gary. </span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">Seed yield of cultivras Charleston Gray and </span><span lang="EN-CA" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">Mahbube</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> in the first year (254 and 256 </span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">kg ha^-1</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">) and second year (220 and 223</span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> kg ha^-1</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">) of experiment were found to be the highest among the studied genotypes. The highest fruit yield (24890 and 20900 </span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">kg ha^-1</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> in the first and second year, respectively) and also the highest seed yield (253 and 237 </span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">kg ha^-1</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> in the first and second year, respectively) were belonged to planting </span><span new="" style="font-size: 10pt; mso-bidi-font-family: " times="">holes</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> of 25 cm.</span><span lang="EN" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> The results of this study showed</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times=""> that planting </span><span lang="EN-CA" mso-ansi-language:="" mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">Mahbube</span><span mso-fareast-language:="" new="" style="font-size: 10pt; mso-bidi-font-family: " times="">&#39;s watermelon cultivar at a 25 cm depth in dryland conditions may lead to an acceptable fruit and seed yield.</span></font></font></p> بذر, مواد جامد محلول در میوه, تنش رطوبتی Seed, Total soluble solid percent, Water stress 151 160 http://jcpp.iut.ac.ir/browse.php?a_code=A-10-1-369&slc_lang=fa&sid=1 P. Jafari پیمان جعفری yahoo.com Peimanjafari@ Yes Agricultural and Natural Resources Research Center, Isfahan, Iran. مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان A. H. Jalali امیرهوشنگ جلالی No Agricultural and Natural Resources Research Center, Isfahan, Iran. مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان