Эффект использования паклобутразола и различных концентраций сахарозы в питательных средах in vitro на развитие растении земляники в полевых условиях
2009
Vysotskij, V.A, | Alekseenko, L.V. | Belyakova, L.V., All-Russia Selection and Technological Inst. of Horticulture and Plant Breeding, Moscow (Russian Federation) | Vysotskaya, O.N., Russian Academy of Sciences, Moscow (Russian Federation). The K.A. Timiryazev Institute of Plant Physiology
The study objects were strawberry varieties Pokakhontas and Zenga-Tigaiga (ZT) in the experiment with paclobutrazol and Profuzhen, Purpurovaya's Daughter (PD) and Purpurovaya – in the experiment with sucrose. The effect of paclobutrazol and different sucrose content in nutrient media during in vitro strawberry micropropagation on following growth and development in vivo has been studied. Weaning test-tube plants of Pokhakhontas and had generative organs more by 4.1 units and the one of ZT had vegetative organs less by 7.3 units in compare with the untreated plants. The generative and vegetative productivity of strawberry varieties after paclobutrazol in vitro treatment depended on varietals peculiarities and changed due to year of cultivation. On the 3 year the plants of Pokhakhontas had leaves, runners and rosettes more by 17.7, 9.5 and 22.1 units respectively in compare with the untreated plants. The positive effect of increased sucrose concentration was noticed: the survival rate of Profuzhen was higher by 24.0%, the one of PD by 46.6% and the one of Purpurovaya by 17.4%. The all plants formed significantly more rosettes; the ones of Purpurovaya and Profuzhen formed also more runners. The plants of the 2 variety and the ones of PD had less flower stocks and total generative organs. Thus, different varietal responses of strawberry plants to paclobutrazol and different concentrations of sucrose contained in nutrient media in vitro was observed in field conditions
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