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Papers by Anisul Islam

Research paper thumbnail of Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings

Annals of Forest Science, 2008

Research paper thumbnail of Effects of fall fertilization on morphology and cold hardiness of red pine (Pinus resinosa Ait.) seedlings

Research paper thumbnail of The effects of chemical preconditioning on physiological changes in drought-stressed plants

Research paper thumbnail of Responses of black spruce (Picea mariana) and tamarack (Larix laricina) to flooding and ethylene

Research paper thumbnail of Retranslocation, Plant, and Soil Recovery of Nitrogen‐15 Applied to Bareroot Black Walnut Seedlings

Communications in Soil Science and Plant Analysis, 2009

Research paper thumbnail of Fertilisation automnale des plants de Pinus resinosa : absorption des éléments nutritifs, rusticité au froid, et développement morphologique

Annals of Forest Science, 2009

Research paper thumbnail of Planting Frozen and Thawed Douglas-Fir Seedlings

We studied the short-term (7-day) physiological responses of planting thawed and frozen root plug... more We studied the short-term (7-day) physiological responses of planting thawed and frozen root plugs of Douglas-fir (Pseudotsuga menziesii) seedlings in 2 separate experiments under cool-moist and warm-dry growing conditions, respectively. Our results showed that shoot water potential, root hydraulic conductance, net photosynthesis (A), and transpiration (E) were significantly lower in frozen seedlings compared with thawed seedlings under both growing conditions. Chlorophyll fluorescence values in frozen and thawed seedlings were similar throughout the measurement nnp interior 11.21 11/24/08 9:35 PM Page 126

Research paper thumbnail of Ecophysiological adaptations of black spruce ( Picea mariana ) and tamarack ( Larix laricina ) seedlings to flooding

Trees - Structure and Function, 2004

Research paper thumbnail of Effects of variable nitrogen fertilization on growth, gas exchange, and biomass partitioning in black spruce and tamarack seedlings

Canadian Journal of Botany, 2005

To compare the ability of black spruce ( Picea mariana (Mill.) BSP) and tamarack ( Larix laricina... more To compare the ability of black spruce ( Picea mariana (Mill.) BSP) and tamarack ( Larix laricina (Du Roi) K. Koch) to adjust to variable edaphic conditions, as found in natural peatlands, we varied N fertilization of seedlings in a growth chamber experiment over two growing seasons and examined growth, biomass partitioning, and gas exchange. Seedlings from both species received either high N (100 µg·L–1) or low N (10 µg·L–1) in consecutive growing seasons as follows: (i) low N and low N (LL), (ii) low N and high-N (LH), (iii) high N and low N (HL), and (iv) high N and high N (HH). Both species had greater shoot and total dry weight after 1 year in the high-N treatment as compared with seedlings grown for 1 year under low-N. For tamarack, these differences were larger and they also exhibited a positive effect of fertilization on net assimilation and water use efficiency. Only black spruce exhibited a positive growth response following the move to higher N fertilization in the second...

Research paper thumbnail of Current uptake of 15N-labeled ammonium and nitrate in flooded and non-flooded black spruce and tamarack seedlings

Annals of Forest Science, 2009

Research paper thumbnail of Post-doctoral Research Scientist

We studied the short-term (7-day) physiological responses of planting thawed and frozen root plug... more We studied the short-term (7-day) physiological responses of planting thawed and frozen root plugs of Douglas-fir (Pseudotsuga menziesii) seedlings in 2 sep-arate experiments under cool-moist and warm-dry growing conditions, respectively. Our results showed that shoot water potential, root hydraulic conductance, net photosynthesis (A), and transpiration (E) were sig-nificantly lower in frozen seedlings compared with thawed seedlings under both growing conditions. Chlorophyll fluorescence values in frozen and thawed seedlings were similar throughout the measurement nnp interior 11.21 11/24/08 9:35 PM Page 126 USDA Forest Service Proceedings:: RMRS-P-57:: 2008 127

Research paper thumbnail of Transient physiological responses of planting frozen root plugs of Douglas-fir seedlings

Canadian Journal of Forest Research, 2008

Short-term physiological responses of planting frozen (FR) and rapidly thawed (TR) root plugs of ... more Short-term physiological responses of planting frozen (FR) and rapidly thawed (TR) root plugs of Douglas-fir ( Pseudotsuga menziesii (Mirb.) Franco) seedlings were examined through time series (0 h, 6 h, 12 h, 1 day, 3 days, and 7 days) measurements in two separate experiments: 10 °C day : 6 °C night, RH 75% and 30 °C day : 20 °C night, RH 50%, respectively. Net photosynthesis, transpiration, shoot water potential, and root hydraulic conductance were lower in FR compared with TR seedlings under both growing conditions. Magnitude of difference in root hydraulic conductance was higher under warm-dry conditions. Chlorophyll fluorescence (Fv/Fm) values were higher for TR than FR seedlings at 0 h, but similar thereafter for both growing conditions. Needle electrolyte leakage and chlorophyll content did not differ between FR and TR seedlings under both environmental regimes. Higher root O2uptake was observed in FR seedlings in warm-dry conditions and in TR seedlings under cool-moist condi...

Research paper thumbnail of Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings

Annals of Forest Science, 2008

Research paper thumbnail of Effects of fall fertilization on morphology and cold hardiness of red pine (Pinus resinosa Ait.) seedlings

Research paper thumbnail of The effects of chemical preconditioning on physiological changes in drought-stressed plants

Research paper thumbnail of Responses of black spruce (Picea mariana) and tamarack (Larix laricina) to flooding and ethylene

Research paper thumbnail of Retranslocation, Plant, and Soil Recovery of Nitrogen‐15 Applied to Bareroot Black Walnut Seedlings

Communications in Soil Science and Plant Analysis, 2009

Research paper thumbnail of Fertilisation automnale des plants de Pinus resinosa : absorption des éléments nutritifs, rusticité au froid, et développement morphologique

Annals of Forest Science, 2009

Research paper thumbnail of Planting Frozen and Thawed Douglas-Fir Seedlings

We studied the short-term (7-day) physiological responses of planting thawed and frozen root plug... more We studied the short-term (7-day) physiological responses of planting thawed and frozen root plugs of Douglas-fir (Pseudotsuga menziesii) seedlings in 2 separate experiments under cool-moist and warm-dry growing conditions, respectively. Our results showed that shoot water potential, root hydraulic conductance, net photosynthesis (A), and transpiration (E) were significantly lower in frozen seedlings compared with thawed seedlings under both growing conditions. Chlorophyll fluorescence values in frozen and thawed seedlings were similar throughout the measurement nnp interior 11.21 11/24/08 9:35 PM Page 126

Research paper thumbnail of Ecophysiological adaptations of black spruce ( Picea mariana ) and tamarack ( Larix laricina ) seedlings to flooding

Trees - Structure and Function, 2004

Research paper thumbnail of Effects of variable nitrogen fertilization on growth, gas exchange, and biomass partitioning in black spruce and tamarack seedlings

Canadian Journal of Botany, 2005

To compare the ability of black spruce ( Picea mariana (Mill.) BSP) and tamarack ( Larix laricina... more To compare the ability of black spruce ( Picea mariana (Mill.) BSP) and tamarack ( Larix laricina (Du Roi) K. Koch) to adjust to variable edaphic conditions, as found in natural peatlands, we varied N fertilization of seedlings in a growth chamber experiment over two growing seasons and examined growth, biomass partitioning, and gas exchange. Seedlings from both species received either high N (100 µg·L–1) or low N (10 µg·L–1) in consecutive growing seasons as follows: (i) low N and low N (LL), (ii) low N and high-N (LH), (iii) high N and low N (HL), and (iv) high N and high N (HH). Both species had greater shoot and total dry weight after 1 year in the high-N treatment as compared with seedlings grown for 1 year under low-N. For tamarack, these differences were larger and they also exhibited a positive effect of fertilization on net assimilation and water use efficiency. Only black spruce exhibited a positive growth response following the move to higher N fertilization in the second...

Research paper thumbnail of Current uptake of 15N-labeled ammonium and nitrate in flooded and non-flooded black spruce and tamarack seedlings

Annals of Forest Science, 2009

Research paper thumbnail of Post-doctoral Research Scientist

We studied the short-term (7-day) physiological responses of planting thawed and frozen root plug... more We studied the short-term (7-day) physiological responses of planting thawed and frozen root plugs of Douglas-fir (Pseudotsuga menziesii) seedlings in 2 sep-arate experiments under cool-moist and warm-dry growing conditions, respectively. Our results showed that shoot water potential, root hydraulic conductance, net photosynthesis (A), and transpiration (E) were sig-nificantly lower in frozen seedlings compared with thawed seedlings under both growing conditions. Chlorophyll fluorescence values in frozen and thawed seedlings were similar throughout the measurement nnp interior 11.21 11/24/08 9:35 PM Page 126 USDA Forest Service Proceedings:: RMRS-P-57:: 2008 127

Research paper thumbnail of Transient physiological responses of planting frozen root plugs of Douglas-fir seedlings

Canadian Journal of Forest Research, 2008

Short-term physiological responses of planting frozen (FR) and rapidly thawed (TR) root plugs of ... more Short-term physiological responses of planting frozen (FR) and rapidly thawed (TR) root plugs of Douglas-fir ( Pseudotsuga menziesii (Mirb.) Franco) seedlings were examined through time series (0 h, 6 h, 12 h, 1 day, 3 days, and 7 days) measurements in two separate experiments: 10 °C day : 6 °C night, RH 75% and 30 °C day : 20 °C night, RH 50%, respectively. Net photosynthesis, transpiration, shoot water potential, and root hydraulic conductance were lower in FR compared with TR seedlings under both growing conditions. Magnitude of difference in root hydraulic conductance was higher under warm-dry conditions. Chlorophyll fluorescence (Fv/Fm) values were higher for TR than FR seedlings at 0 h, but similar thereafter for both growing conditions. Needle electrolyte leakage and chlorophyll content did not differ between FR and TR seedlings under both environmental regimes. Higher root O2uptake was observed in FR seedlings in warm-dry conditions and in TR seedlings under cool-moist condi...

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