نوع مقاله : کامل علمی - پژوهشی
نویسندگان
1 استاد مؤسسه تحقیقات گیاهپزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران.
2 مربی مؤسسه تحقیقات گیاهپزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران.
3 استادیار پژوهشی مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند- سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Introduction of sugar beet cultivars with tolerance to dodder is considered an inevitable necessity in the management of this parasitic weed, and conducting comprehensive research in this area is of great importance. Therefore, the tolerance of eight sugar beet cultivars including Ekbatan, SBSI061, Arta, Aria, Sina, Shokoofa, Paya, and Sharif, was evaluated against dodder in pot and field trials. The pot trial was carried out in the spring of 2021 in the greenhouse of the weed research department and in the spring of 2022 in the research field of Iranian Research Institute of Plant Protection in Meshkindasht, Alborz. Among studied traits, fresh weight of sugar beet root, dodder fresh weight, and the ratio of dodder fresh weight to shoot fresh weight of sugar beet played an important role in determining the tolerance or susceptibility of sugar beet cultivars to dodder. Results showed that Ekbatan and Shokoofa experienced the lowest and highest reduction of the above-mentioned traits, respectively under contamination with dodder; because the root fresh weight reduction was the lowest (41.5 and 14% in greenhouse and field, respectively) in Ekbatan and the highest (63.5 and 96% in greenhouse and field, respectively) in Shokoofa. On the other hand, in the presence of Ekbatan and Shokoofa cultivars, dodder had the lowest (41 g pot-1 and 16g m-2 in the field) and the highest (82.5g pot-1 in the pot and 52.3 g m-2 in the field). In addition, the ratio of fresh weight of dodder to shoot of sugar beet was the lowest (0.97 and 0.11 in greenhouse and field, respectively) in Ekbatan and the highest (2.53 and 0.46 in greenhouse and field, respectively) in Shokoofa, respectively. Therefore, among studied cultivars, Ekbatan and Shokoofa are introduced as cultivars with greater tolerance and susceptibility to dodder, respectively.
کلیدواژهها [English]