Results 121 to 130 of about 648,893 (289)

Is greenhouse tomato production environmentally and economically sustainable in the long term? Evidence from life cycle and economic analyses in Northwest China

Cleaner Environmental Systems
The environmental impacts of greenhouse vegetable production have garnered increasing attention, while the long-term economic and environmental sustainability of these systems remains largely unquantified.
Xinjing Wang, Mingke Zhang, Xiaoqin Wang, Congcong Duan, Kuok Ho Daniel Tang, Huiqi Yu, Yamin Peng, Dongli Liang, Shuo Sun   +8 more
doaj   +1 more source

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

American Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard, Elissa Harb, Stacy D. Holt Jr., Courtney M. Patterson, Nicholas J. Kooyers   +4 more
wiley   +1 more source

Protected areas (Plastic and glass greenhouses) [PDF]

, 2014
Kako bi se produžila sezona proizvodnje, povrće, cvijeće pa čak i voćke uzgajaju se u zaštićenom prostoru, stakleniku ili plasteniku. U zaštićenom prostoru možemo precizno regulirati mikroklimu i biljkama osigurati optimalne uvjete rasta. Sistem grijanja
Kantoci, Dario
core   +1 more source

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

American Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd, Elise Cadiou, Alain G. Belliveau, Zoe A. Panchen, Terrell T. Roulston, Zoë Migicovsky   +5 more
wiley   +1 more source

Simulation Model Construction of Plant Height and Leaf Area Index Based on the Overground Weight of Greenhouse Tomato: Device Development and Application

Horticulturae
Plant height and leaf area index (LAI) are crucial growth indicators that reflect the growth status of tomatoes in greenhouses, enabling accurate determinations to effectively estimate crop transpiration and formulate irrigation strategies for reducing ...
Shenbo Guo, Letian Wu, Xinwei Cao, Xiaoli Sun, Yanfei Cao, Yuhan Li, Huifeng Shi   +6 more
doaj   +1 more source

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

American Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely, G. Olivia Plumb, Mira N. Ranganath, Emily Dolida, Ishan Ashford, Graham Luethe, Tim Thibault, Gretchen B. North   +7 more
wiley   +1 more source

Ventilation System Design Parameters for Greenhouses for Tobacco Production [PDF]

, 1999
Methods for germination and initial growth of tobacco have changed rapidly in recent years, moving from outside float beds into double-layer plastic greenhouses.
Gates, R. S., Duncan, George A.
core  

Soil Heating Significantly Increases Leaf Magnesium Concentration and Fruit Yield in Tomatoes Produced in a Plastic Greenhouse During Winter

Agronomy
Magnesium (Mg) deficiency frequently occurs in tomato leaves grown in plastic greenhouses during winter in northern China. In this study, field experiments were conducted to test the effects of soil temperature and the potassium (K) fertilizer ...
Haofeng Lv, Jiaming Luan, Yunjie Guo, Jijie Liang, Xiangjun Li, Xiupeng Sun, Weiwei Zhou, Bin Liang   +7 more
doaj   +1 more source

Floral traits and hermaphrodite abundance shape female advantage in a gynodioecious plant

American Journal of Botany, EarlyView.
Abstract Premise Gynodioecy is maintained through female advantage in seed fitness that depends on the sex ratio of a population. We hypothesized that females of Silene acaulis would exhibit floral traits associated with elevated outcross pollination and that sex ratio would impact pollen limitation and inbreeding depression such that female advantage ...
Emma K. Chandler, Megan L. DeMarche
wiley   +1 more source

Transcript modification: A potential nutrient‐conserving strategy for polyploid plants

American Journal of Botany, EarlyView.
Abstract Premise Due to greater cell and nucleic acid nutrient requirements, polyploids have been hypothesized to be more constrained than related diploids in terms of cell synthesis and biomass accumulation when soil nutrients are limited. Methods Here, we grew autotetraploid and diploid Solidago gigantea plants in soils enriched or limited with ...
Erika I. Hersch‐Green, Carsten Külheim, Angela M. Walczyk   +2 more
wiley   +1 more source