مجلة الاطروحة العلمية المحكمة الاطروحه للنشر العلمي
Ipomoea batatas L. تأثير طول العقلة والمسافات الزراعية في صفات حاصل البطاطا الحلوة
هبه محمد طه
ا.د غسان جايد زيدان
جامعة تكريت / كلية الزراعة / قسم البستنة وهندسة الحدائق
Abstract
The experiment was conducted out in the greenhouse of the Department of Biology – College of Education – Samarra University as a factorial experiment for the period from 11/24/2022 to 6/23/2023, to determine the best of cutting length and distance of planting. The experiment consisted of two factors. The first factor is the length of cutting namely 30, 40 and 50 cm. The second factor is planting at three distances i.e., 30, 40 and 50 cm. The experiment was carried out according to a Randomized Complete Block Design (RCBD) as a factorial experiment with three replications. The comparison of means was performed by Duncan at 5% level of probability. The most important results of the second experiment are showed that:There were no significant differences in most of the characteristics studied for the single factors and the interaction.. Whereas a distance of 40 cm recorded significant increase in the weight of the tuberous root and the plant yield. On the other hand, a cutting length of 30 cm gave a significant increase in the number of leaves, while a cutting length of 50 cm recorded best value in the length of the tuberous root. The interaction treatments between the planting distance and the cutting length 50 cm + 50 cm, 40 cm + 30 cm and 50 cm + 30 cm a significant decrease in the length of the plant, the length of the tuberous root, respectively. While, 40 cm + 40 cm treatment decreased significantly in the number of tuberous roots, and 30 cm + 40 cm treatment in diameter and weight of the tuberous root and the plant yield.