Email this article Growth and fatty acid composition of sesame (Sesamum indicum L.) genotypes as influence by planting dates and nitrogen fertilization in semiarid region of Northwest, Pakistan
- Authors: Ali S.1, Jan A.1, Zhikuan J.2, Sohail A.3, Tie C.2, Ting W.2, Peng Z.2, Manzoor 1, Ahmad I.1, Rahman M.U.4, Xiaolong R.2, Xiaoli L.2, Yue X.Y.2
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Affiliations:
- Department of Agronomy
- Chinese Institute of Water-Saving Agriculture
- Department of PBG
- Department of Horticulture
- Issue: Vol 42, No 3-4 (2016)
- Pages: 224-229
- Section: Plant Growing
- URL: https://journals.rcsi.science/1068-3674/article/view/229556
- DOI: https://doi.org/10.3103/S1068367416030046
- ID: 229556
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Abstract
A field experiment was conducted on silty clay loam soil in the years 2011–2012. Two sesame (Sesamum indicum L.) cultivars (Local Black and Local White) were evaluated using various 3 different sowing dates (20th June, 10th and 30th July) and four agrotechnical level (0, 40, 80 and 120 kg N ha–1) at New Developmental Farm The University of Agriculture, Peshawar, Pakistan. The objective of this study was to evaluate the effects of sowing dates on growth, yield and oil fatty acid composition of two sesame cultivars grown under different nitrogen fertilization. Results showed that cv. Local Black was characterized by significantly higher content of oil (47%), seed yield (696 kg ha–1) and oil yield (335 kg ha–1) while cv. Local White had higher palmitic acid (8%) and linoleic acid (38.7%). Yield and its main components were positively affected by the earlier sowing date. With regard to fatty acid composition, a decrease in oleic and stearic acid and an increase in linoleic and palmitic acid were observed. At early sowing, oleic and palmitic acid decreased whereas linoleic and stearic acid increased. The decrease in the oleic/linoleic acid ratio observed at early sowing, suggests a possible role of temperature on the activity of oleate desaturase in the developing seeds. Intensive technology of cultivation (120 kg N ha–1), compared to the economical technology (40 kg N ha–1), significantly increased the seed yield of both sesame cultivars. This was due to higher number of branches, Capsules m–2, capsules plant–1, seeds capsule–1 and 1000 seed weight (g). The intensive technology of cultivation had a beneficial effect on the content of palmitic acid, linolenic acid and oleic acid in sesame seed.
About the authors
Shahzad Ali
Department of Agronomy
Author for correspondence.
Email: shahzadali320@aup.edu.pk
Pakistan, Peshawar
Amanullah Jan
Department of Agronomy
Email: shahzadali320@aup.edu.pk
Pakistan, Peshawar
Jia Zhikuan
Chinese Institute of Water-Saving Agriculture
Email: shahzadali320@aup.edu.pk
China, Yangling, 712100
Amir Sohail
Department of PBG
Email: shahzadali320@aup.edu.pk
Pakistan, Peshawar
Cai Tie
Chinese Institute of Water-Saving Agriculture
Email: shahzadali320@aup.edu.pk
China, Yangling, 712100
Wei Ting
Chinese Institute of Water-Saving Agriculture
Email: shahzadali320@aup.edu.pk
China, Yangling, 712100
Zhang Peng
Chinese Institute of Water-Saving Agriculture
Email: shahzadali320@aup.edu.pk
China, Yangling, 712100
Manzoor
Department of Agronomy
Email: shahzadali320@aup.edu.pk
Pakistan, Peshawar
Irshad Ahmad
Department of Agronomy
Email: shahzadali320@aup.edu.pk
Pakistan, Peshawar
Mati Ur Rahman
Department of Horticulture
Email: shahzadali320@aup.edu.pk
Pakistan, Peshawar
Ren Xiaolong
Chinese Institute of Water-Saving Agriculture
Email: shahzadali320@aup.edu.pk
China, Yangling, 712100
Liu Xiaoli
Chinese Institute of Water-Saving Agriculture
Email: shahzadali320@aup.edu.pk
China, Yangling, 712100
Xu Yue Yue
Chinese Institute of Water-Saving Agriculture
Email: shahzadali320@aup.edu.pk
China, Yangling, 712100
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