استجابة بعض صفات الحاصل الكمية في نبات الذرة الحلوة لمواعيد الزراعة والرش بالمحفزات الحيوية
محمد هادي عبيد و صادق قاسم صادق
DOI:
https://doi.org/10.59658/jkas.v3i2.22Abstract
نفذت التجربة في حقول الخضر التابعة لقسم البستنة وهندسة الحدائق / كلية الزراعة ( ابو غريب) / جامعة بغداد ، للموسم الخريفي 2012 والموسم الربيعي 2013 بهدف دراسة استجابة بعض الصفات الكمية لنبات الذرة الحلوة (Zea mays L.var saccharata ) لمواعيد الزراعة و الرش بالمحفزات الحيوية ، تضمنت تجربة الموسم الخريفي موعدين 1 اب و 15 اب و الموسم الربيعي على اربع مواعيد 15 شباط، و1 اذار، و 15 اذار، و 1 نيسان اشتمل كل موعد على المعاملة بثلاثة انواع من المحفزات الحيوية هيDisper Root وDisper Chlorophyll و Disper Vital بتركيز 1غم . لتر-1 ويمكن تلخيص نتائج التجربة كالاتي :
اثرت مواعيد الزراعة معنويا في معظم صفات الحاصل لنبات الذرة الحلوة ، ففي الموسم الخريفي حققت النباتات المزروعة في موعد 15 اب اعلى المعدلات لصفة عدد الحبوب بالعرنوص 539.0 حبة بالعرنوص ، و حاصل العرانيص الطازجة 16.93 طن. هكتار-1 . ادت معاملات المحفزات الحيوية الى ظهور فروقات معنوية في معدل صفات حاصل نبات الذرة الحلوة، اذ تميزت معاملة المحفز الحيوي Root2+Chloro في الموسمين الخريفي والربيعي بأفضل المعدلات لصفة طول العرنوص 21.06 و 19.24 سم، و عدد الصفوف بالعرنوص 18.71 و 17.77 صف. عرنوص-1، و عدد الحبوب بالعرنوص 544.0 و 462.4 حبة . عرنوص-1 ، وحاصل العرانيص الطازج 16.93 و 12.48) طن. هكتار-1.
وحقق التداخل ما بين مواعيد الزراعة والمحفزات الحيوية تأثيرا معنويا في بعض صفات الحاصل لنبات الذرة الحلوة ، وللموسمين الخريفي والربيعي على التوالي ، اذ اعطت المعاملة Root2+Chloro في موعد 15 اب اعلى المعدلات وعدد الحبوب بالعرنوص 563.3 حبة. عرنوص-1 ، وحاصل العرانيص الطازج 17.43 طن. هكتار-1
Key words: sweet corn, Zea mays L .var saccharata , planting dates , biostemulators
البحث مستل من اطروحة دكتوراه للباحث الاول*
response of some quantity yield traits of sweet corn (Zea mays L .var saccharata) for planting dates and spraying with biostemulators.
Abstract
the experiment Carried out in the vegetable fields of the Department of Horticulture and landscaping - Faculty of Agriculture - University of Baghdad, for the autumn season 2012 and the spring season 2013 in order to study response of some quantity yield traits of sweet corn (Zea mays L .var saccharata) for planting dates and spraying with biostemulators. Experience autumn season included two dates August 1 and August 15 and the spring season on four dates 15 February, 1March, 15March, 1April , All included on the transaction date three types of biostemulators Disper Root, Disper Chlorophyll and Disper Vital concentration of 1 g. L-1, can be summarized results of the experiment as follows:
Affected planting dates morally in most traits for sweet corn yield, in the autumn season of cultivated plants investigated the date August 15 for the highest number of grains per cob. Fresh Ear yield . Biostimulators treatments rise to significant differences in the characteristics of sweet corn plant yield, as characterized by the treatment of Biostimulators Root 2 + Chloro in the spring and autumn seasons best rates, cob length 21.06 و 19.24 cm , row per cob 18.71 و 17.77 , grain per cob 544.0 و 462.4 , and Fresh Ear yield 16.93 و 12.48 kgm. h-1.
And achieved Interference between planting dates and Biostimulators significant effect in some of the yield traits to sweet corn, and for two seasons, respectively
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