Results 81 to 90 of about 4,984 (223)

桑樹新梢生長與碳水化合物及氮素之關係 [PDF]

open access: yes, 2014
2年生盆栽桑樹植株,在一年修剪4次方式下,不同季節修剪後至萌芽所需日數、冬季較春、夏、秋季為多,其萌芽率則較低。而經催芽處理後,以冬季催芽最佳,其次依序為秋、春及夏季。 樹體養分之變化,在碳水化合物方面,其枝條、樹幹或根部之主碳水化合物及澱粉含量隨著新梢生長而增加,以秋、冬或夏季修剪之含量較高,春季修剪之含量為最低;唯全糖含量在秋季修剪下蓄積較多,其他生長過程變化較小。氮素方面,樹體之全氮及蛋白態氮含量在春季或冬季修剪下隨著新梢生長而降低,在夏季或秋季修剪下則隨著新梢生長而增高 ...
林進財   +3 more
core  

Influence of the pruning system on the growth and productivity of slender spindle apple trees

open access: yesHorticultural Science, 2018
Slender spindle is currently the most widespread pruning system for apple trees in the Czech Republic. However, further modifications of this pruning system have been developed.
Josef Sus   +2 more
doaj   +1 more source

Habitat loss and fragmentation for an old‐forest species is driven by severe wildfire and drought

open access: yesConservation Science and Practice, EarlyView.
We examined the long‐term trends in habitat for California spotted owls and attributed habitat changes to specific drivers. We found that the 43% decline in habitat from 1985 to 2022 could primarily be attributed to wildfire and drought. Habitat patches also became smaller and more isolated over time.
Ronan Hart   +7 more
wiley   +1 more source

THE EFFECTS OF DIFFERENT PRUNING TREATMENTS ON THE GROWTH, FRUIT QUALITY AND YIELD OF 'HACIHALILOGLU' APRICOT

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2010
This study was conducted in Malatya, between 1999 and 2003, and the region's most important dried apricot variety, Hacihaliloglu was used as material.
M. Naim Demitras   +7 more
doaj  

Evaluation of Olive Pruning Effect on the Performance of the Row-Side Continuous Canopy Shaking Harvester in a High Density Olive Orchard

open access: yesFrontiers in Plant Science, 2020
In 2009, the Side-Row Continuous Canopy Shaking Harvester project was set to develop such technology. The prototype comprises two symmetrical harvesters trailed by a farm tractor.
António Bento Dias   +3 more
doaj   +1 more source

The Great Dividing Range as a driver of genetic divergence in a low‐dispersing dragonfly

open access: yesEcological Entomology, EarlyView.
Population genomic analyses revealed low genetic differentiation and no discrete population structure across the Great Dividing Range, indicating widespread gene flow in Synthemis eustalacta. Genetic divergence was associated with environmental gradients, elevation and landscape resistance rather than geographic distance, supporting isolation by ...
Aaron M. Goodman   +20 more
wiley   +1 more source

Summer pruning for maintaining slender spindle bush type of peach trees grafted on vigorous rootstocks [PDF]

open access: yes, 2013
The slender spindle bush type system is commonly used for compact-sized trees, especially grafted on dwarfing rootstocks. It is difficult to apply this system to trees grafted on vigorous rootstocks by winter pruning.
Mizutani, F.
core   +2 more sources

Forest edges buffer effects of agricultural management on bee–plant interaction networks

open access: yesEcological Entomology, EarlyView.
Agricultural management effects: Organic and conventional crop margins host similar bee and plant species, but network structure differs: organic farms exhibit higher interaction diversity, conventional farms higher connectance. Role of forest edges: Native forest edges stabilize bee–plant networks by providing continuous floral resources and suitable ...
Samantha Marx de Castro   +6 more
wiley   +1 more source

Influence of different pruning solutions in kernel production of a super high-density almond orchard [PDF]

open access: yes, 2022
The success of the super high density (SHD) system on olive production has been extended to almond orchards, where it is necessary to ensure adequate canopy dimensions for over-the-row harvesting machines.
Pinheiro, Anacleto   +4 more
core  

The Effect of Traffic Congestion on Labour Investment Efficiency

open access: yesEuropean Financial Management, EarlyView.
ABSTRACT The study examines the effects of headquarters‐city traffic congestion on labour investment efficiency. The results indicate that firms headquartered in congested cities may engage in inefficient labour investment decisions. Further analysis indicates that the inefficiency is associated with both overinvestment and underinvestment in labour ...
Rajib Chowdhury
wiley   +1 more source

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