نتایج جستجو برای: seedlings quality

تعداد نتایج: 776445  

2017
Ning Tian Shengzuo Fang Wanxia Yang Xulan Shang Xiangxiang Fu

As a multiple function tree species, Cyclocarya paliurus (Batal) Iljinskaja is mainly planted and managed for timber production and medical use. To improve the seed use efficiency and outplanting performance of C. paliurus, the effects of container types and growth medium on the seedling growth and root morphology of C. paliurus were investigated by using a completely randomized block experimen...

2016
J. Wiśniewski M. Szczepanik B. Kołodziej

The study aimed at determination of the optimum conditions for high yielding and high quality of Valeriana officinalis L. production by selecting the best variety and plantation establishment method. A higher content of active substances but lower yields of underground parts of plants were obtained in a thin-rooted variety (‘Polka’) culture, whereas an adverse tendency was observed in a thick-r...

1998
David B. South

“Morphologically improved” seedlings (large-diameter seedlings grown at low nursery spacings) have a higher probability of survival (about 5% better) than regular seedlings since they have larger root systems, a higher root-weight ratio (root dry weight/seedling dry weight), and have a greater root growth potential. In addition, these seedlings will grow faster during the first several years af...

Journal: :Pesquisa Agropecuária Tropical 2021

ABSTRACT The use of pre-sprouted seedlings in the implantation sugarcane crops not only reduces establishment period and production costs, but also has other advantages, such as a lesser requirement propagules (stems) greater phytosanitary control seedlings, when compared to conventional planting. Commercial substrates are expensive their increases cost seedlings. This study aimed evaluate qual...

Journal: :Applied sciences 2023

Grafting is one of the main techniques used in intensive tomato cultivation to address abnormal weather, diseases, insect pests, and continuous cropping problems. In recent years, due agricultural labor constraints, industry has needed make use more machinery. this study, a clamping cutting arrangement device for Solanaceae scion stock seedlings was developed; it included UR5 robotic arm realiz...

Journal: :Agronomy Science and Biotechnology 2023

All palms present ornamental appeal and may be widely used in landscaping, especially the native ones because of their ecological importance, such as jussara palm (Euterpe edulis Mart.). In this sense, aiming at maximum plant development urban environment, it is necessary to use high-quality seedlings; substrate one key factors that directly influence it. The objective study was evaluate initia...

Journal: :Journal of Landscape Ecology 2023

Abstract Restoration activities in degraded and/or deforested forest landscapes are common and old occurrences around the world. Tree planting is most landscape restoration initiatives. In Ethiopia, eight seedling-based options identified to alleviate land degradation its consequences. The primary purpose of this work was review factors affecting early survival tree shrub seedlings their remedi...

2017
Gang Gao Heping Xiong Kunmei Chen Jikang Chen Ping Chen Chunming Yu Aiguo Zhu

Ramie (Boehmeria nivea (L.) Gaud.) is a traditionally terrestrial fiber crop. However, hydroponic technology can enhance the quantity and quality of disease free Ramie plant seedlings for field cultivation. To date, few studies have attempted to examine the hydroponic induction of ramie roots and the molecular responses of ramie roots to aquatic environment. In this study, ramie tender stems wa...

2009
Elizabeth L. Middleton James D. Bever Peggy A. Schultz

The methods employed in a restoration can impact the resulting plant community. This study investigated the effect of restoration method on several indices of plant community structure by comparing two restoration methods conducted over an 8-year period to a naturally colonized postagricultural field and a remnant grassland. The restoration methods included (1) distributing seed over fallow fie...

2002
J. W. Garner

In a three year study, IOOderate and severe root pruning just before planting was compared to no root pruning, on two size classes of seedlings (smaller and larger than average). Seedlings were bar planted in holes the full depth of the planting bar blade. For the smaller seedlings, survival was 1.0 percentage point higher for moderate pruning and 5.6 points lower for severe pruning compared to...

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