title: The effect of stem pruning and nitrogen levels of on some physico-chemical characteristics of pumpkin seed (Cucurbita pepo L.).
abstract: To investigate the effects of stem pruning (No heading, head pruning of stem after formation of 10 and 14 nodes) and nitrogen levels (0, 50, 100 and 200 kg ha(-1)) on physical and chemical characteristic of pumpkin seed a Factorial experiment based on randomized complete block design with three replication was carried out in Gorgan at 2003 and repeated in 2004 years. Results showed that the stem pruning has significant effect on traits such as seed oil, linoleic acid and oleic acid content. Nitrogen levels also have significant effect on seed dimension, seed oil, linoleic acid and oleic acid content. The largest amount of oil and linoleic acid content was obtained by stem pruning after forming 14 node and 100 kg ha(-1) nitrogen in separately, but the interaction of treatments were not significant difference for all of traits.
authors.affiliation: Department of Agriculture, University of Mohaghegh Ardabili, Ardabil, Iran.
authors.forename: Abdolghayoum
authors.initials: A
authors.lastname: Gholipouri
authors.forename: H
authors.initials: H
authors.lastname: Nazarnejad
mesh_terms: D028464:Cucurbita / Q000033:anatomy & histology / Q000502:physiology; D006801:Humans; D009584:Nitrogen / Q000378:metabolism*; D010946:Plants, Medicinal / Q000033:anatomy & histology / Q000502:physiology; D011897:Random Allocation; D012639:Seeds / Q000737:chemistry / Q000648:ultrastructure
chemical_list: D009584:Nitrogen