[Variability of Pinus sibirica by mineral accumulation in needles and seeds]
2009
Matveeva, R.N. | Bratilova, N.P. | Kubrina, S.M.
Mineral accumulation in needles and seeds of Pinus sibirica (PC) is studied to find out adaptive plant reactions on environmental pollution. The plantations of PS aged of 39-41 years are examined. They are located near the city Krasnoyarsk; the seeds for the plantations have been collected in 7 geographical points. Three of the points have been placed in the Krasnoyarsk Territory (the Ermakov District - ER, the Yenisei District - YN, the Emelyanov District - EM); 2 have been done in the Republic of Altai (RA); 1 has been placed in the Irkutsk Region (IR); 1 has been done in the Kemerovo Region (KR). The control culture is considered to be the one grown from EM seeds. It is found out that the microelement ratio of Cu, Zn, Fe, Mn are 1:13:34:52 in the needles of PS. The maximum Mn, Fe, Zn and Cu contents are noted for the needles of PS from ER and RA; for the needles of PS from EM, YN, ER; for the needles of PS from YN; for the needles of PS from KR and RA respectively. At this Zn and Cu contents have varied from 48.4 to 57.1 and from 3.46 to 4.06 milligram/kg. The total content of the studied microelements is the maximum in the needles of PS from ER and EM. A high negative correlation between Cu and Fe accumulation is characteristic for the PS plants of studied origins. Variability of microelement accumulation is proved depending on individual features of the PS plants; unequal accumulation is observed from an year to an year. Fast growing and slow growing specimen differ reliably by Fe content in them. It is found out that microelement content in the seeds of PS also depends on geographical origin. The raised Fe and Zn, Mn, Cu contents are characterized for the seeds of PS from EM; for the seeds of PS from ER and EM; for the seeds of PS from KR and ER. The ratio of Cu, Zn, Fe, Mn is 4:28:31:37 for the seeds of 2002 yield and it is 6:23:31:40 for the seeds of 2004 yield. The conclusion is that growth and seed forming intensity and also raised capacity to accumulate microelements can be used for early diagnostics of PS specimen they are good for formation of plantations with high adaptive level to environment.
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