Winter frost damage and its link to early growth and survival in a poplar clone collection

Šēnhofa, Silva; Lazdiņa, Dagnija; Zeps, M.

doi:10.22616/rrd.27.2021.010

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…Higher production of wood per unit area by these plantations also allows greater efficiency in CO 2 sequestration and in climate change mitigation [45,46]. In these cases, however, the impacts of water consumption, both on the energy and economic balance and on the environmental impact, are certainly factors to be investigated with particular attention.…”

Section: Introductionmentioning

confidence: 99%

Deficit Irrigation for Efficiency and Water Saving in Poplar Plantations

et al. 2022

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Water resources are increasingly limited and less available, so improving water use efficiency is particularly pressing in the agricultural sector, where inefficient irrigation systems are often in operation. Drip irrigation is one of the most water-saving systems that can optimize distribution according to the actual needs of the crop. In the present study, an engineered drip irrigation system was applied to a poplar crop dedicated to the production of biomass for energy use. The aim was to evaluate the influence of the supply of different volumes of irrigation water on crop growth. Four levels of water supply were tested (theses T1, T2, T3, and T4), each determined by different intervention thresholds established by using four soil moisture sensors, one for each thesis (PLOT) (20, 30, 40, and 50 percent, respectively). In the third growing season, the effect of the different amounts of irrigation water supplied on plant growth was particularly evident between control T1 (104 m3 ha−1) compared with T2 (540 m3 ha−1), T3 (1924 m3 ha−1) and T4 (4549 m3 ha−1). Regarding biomass production, no statistical differences were found between T2 (8.97 Mg DM ha−1 year−1), T3 (9.99 Mg DM ha−1 year−1) and T4 (10.02 Mg DM ha−1 year−1), but they were all different from T1 (7.09 Mg DM ha−1 year−1. This leads to the conclusion, at least up to the third growing season, that with equal satisfactory levels of biomass production, water and energy savings can be achieved by choosing intermediate levels of water supply (e.g., with the sensor at 30%) as compared to the maximum value tested.

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Section: Introductionmentioning

confidence: 99%

Deficit Irrigation for Efficiency and Water Saving in Poplar Plantations

et al. 2022

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Preliminary estimates of genetic parameters and familial selection for non-native poplars show good potential for genetic gains on growth, cold hardiness, trunk quality and Sphaerulina musiva susceptibility

Otis-Prud’homme,

DeBlois,

Perron

2023

Tree Genetics & Genomes

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Genetic parameters for growth, trunk quality, and susceptibility to frost and Sphaerulina musiva attack were estimated from 34 half-sib families of hybrid poplar from the crossing of non-native parents, Populus maximowiczii A. Henry, and Populus trichocarpa Torr. & Gray, 3 and 6 years after planting. The use of spatial analysis proved to be the best method for quantitative growth data. The proportion of the among-family variance to the total (phenotypic) variance as well as the high heritabilities of growth and susceptibility to frost and Spaherulina musiva showed a high potential for selection for these traits while the quality traits were under low genetic control. Some families showed gains for several traits, suggesting the possibility of developing a selection index to obtain superior families that show gain for not only growth but quality and adaptive traits as well. Type B correlations were high, suggesting that families responded in the same way regardless of the site. High type A correlation between growth traits at 3 and 6 years showed early selection potential, although these relationships should be confirmed with future measurements to evaluate this effect at maturity. These results can be integrated into the strategy for improving hybrid poplar parental populations and, in the longer term, will make it possible to optimize the selection of individuals with traits of interest for the operational deployment of hybrid poplar clones.

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New intersectional hybrids of Eupopulus L.

Tsarev,

Tsareva,

Tsarev

et al. 2023

Forestry Engineering Journal

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In world practice, there is an example of a sudden defeat of the best most productive poplar in Italy ‘I-214’ (‘Glory of Italy’), which in many European countries occupied up to 35% of poplar plantations. The defeat of leaf rust Marsonina brunnea for several years completely destroyed the plantings of this variety of poplar. This catastrophe led to the formation of an approach that when creating plantings, it is necessary to use not one, even the best variety or clone, but several. There were proposals to plant at least 30-50 different clones, hybrids and varieties in close ecological conditions of the growing place. Such approaches began to spread not only in Western Europe, but also in other countries, including the Soviet Union and Russia. Reproduction of intersectional hybrids of poplars (Eupopulus L.) was carried out in production nurseries of the Voronezh and Lipetsk regions. Analysis of the results of hybridization of poplars (balsamic × black and black × balsamic) showed that the survival rate of hybrid seedlings in the Semiluk collection No. 1 was (85-100%). Their safety by the age of 21 has decreased to 45-74%. According to the results of long-term observations, the average biometric growth indicators in height and diameter increased from 5.9 to 14.0 cm and from 8.6 to 24.4 m, respectively. The results of studies of 16 new intersectional hybrids show that the trunk volumes at the age of 21 ranged from 0.151 to 0.753 m3. In the future, it is planned to submit three candidates for varieties to the State Commission for Variety Testing of the Russian Federation: ‘Versiya', ‘Stroyn’ and ‘Borey’.

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Winter frost damage and its link to early growth and survival in a poplar clone collection

Cited by 3 publications

References 31 publications

Deficit Irrigation for Efficiency and Water Saving in Poplar Plantations

Deficit Irrigation for Efficiency and Water Saving in Poplar Plantations

Preliminary estimates of genetic parameters and familial selection for non-native poplars show good potential for genetic gains on growth, cold hardiness, trunk quality and Sphaerulina musiva susceptibility

New intersectional hybrids of Eupopulus L.

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