scholarly journals Mycorrhizal infection and high soil phosphorus improve vegetative growth and the female and male functions in tomato

2002 ◽  
Vol 154 (1) ◽  
pp. 255-264 ◽  
Author(s):  
Jennifer L. Poulton ◽  
David Bryla ◽  
Roger T. Koide ◽  
Andrew G. Stephenson
Keyword(s):  
Vegetative Growth ◽  
Soil Phosphorus ◽  
Mycorrhizal Infection ◽  
High Soil

Influence of vesicular – arbuscular mycorrhizal infection and soil phosphorus level on growth and carbon metabolism of soybean

1988 ◽  
Vol 66 (11) ◽  
pp. 2311-2316 ◽  
Author(s):  
Arthur L. Fredeen ◽  
Norman Terry
Keyword(s):  
Shoot Growth ◽  
Leaf Surface ◽  
Soil Phosphorus ◽  
Arbuscular Mycorrhizal ◽  
Mycorrhizal Infection ◽  
Extractable P ◽  
Vesicular Arbuscular ◽  
Glycine Max L ◽  
Low Levels ◽  
Uptake And Transport

The effect of vesicular–arbuscular (VA) mycorrhizal infection on growth and photosynthesis in nodulated soybean (Glycine max (L.) Merr. cv. Hobbit) plants cultured at high and low levels of soil phosphorus (P) was explored in a 2 × 2 factorial experiment. The high- and low-P soils were constituted by adding 200 and 40 μg P (KH2PO4) ∙ g−1, respectively, to a low-P soil (8 μg ∙ g−1 bicarbonate extractable P). Mycorrhizal (Glomus fasciculatum Thaxter sensu Gerdemann) and non-mycorrhizal inocula were added to each soil, thereby constituting the two mycorrhizal treatments. In plants grown in low-P soil, VA mycorrhizal infection resulted in higher foliar P concentrations (compared with the nonmycorrhizal treatment) and in significantly greater shoot and nodule dry weights. In plants grown in high-P soil, VA mycorrhizal infection had no significant or consistent effect on shoot or root dry weights or on P concentrations, and decreased nodule weight. Photosynthetic rates were not affected by VA mycorrhizal infection or P treatment. These results suggest that in low P grown plants, VA mycorrhizal infection increased the uptake and transport of P to leaves and that this, in turn, resulted in greater rates of shoot growth via an increased production of photosynthate, not because of an increase in photosynthesis on a leaf are basis but because of an increase in the rate of expansion of the leaf surface.

Invasion of coastal heaths of Victoria by Leptospermum laevigatum (J. Gaertn.) F. Muell

1981 ◽  
Vol 29 (6) ◽  
pp. 747 ◽  
Author(s):  
JP Burrell
Keyword(s):  
Seedling Survival ◽  
Soil Phosphorus ◽  
Normal Growth ◽  
Nutrient Status ◽  
Temporary Increase ◽  
Phosphorus Level ◽  
Mycorrhizal Infection ◽  
Calcareous Sand ◽  
Undisturbed Soil ◽  
Growth Of Seedlings

Ecological and biological characteristics of the seral species Leptospermum laevigatum and the climax community, heath, are described. L. laevigatum invades only disturbed heathlands on sand podzols. On undisturbed soil, seedling survival is low and seedlings which survive are stunted. Stunting is attributed to the failure of mycorrhizal infection on soil of very low nutrient status. The addition of phosphorus ensured normal growth of seedlings on these soils. Top dressing with calcareous sand proved a poor source of additional phosphorus. To produce the observed densities of L. laevigatum in extensive areas of invaded heathland three factors are necessary: disturbed topsoil; a temporary increase in the soil phosphorus level; and release of the accumulated reservoir of seed. Fire is suggested as the factor likely to produce these conditions.

scholarly journals Effects of constantly high soil water content on vegetative growth and grape quality in Japan with high rainfall during grapevine growing season

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yuta Kobayashi ◽  
Tetsunan Yamamoto ◽  
Hironori Ikeda ◽  
Ryuzo Sugihara ◽  
Hiroki Kaihori ◽  
...  
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Vegetative Growth ◽  
Growing Season ◽  
Experimental Plot ◽  
Growing Seasons ◽  
High Soil ◽  
Berry Quality ◽  
Vineyard Soil

AbstractExcess water in vineyard soils during grapevine growing season is expected to become a critical issue in Japan. The objective of this study was to investigate the effects of constantly high soil water content which was controlled at constantly more than 20% water content in soil on vegetative growth and berry quality of Cabernet Sauvignon over a 3-year growing season. A wireless sensor networking system for real-time monitoring of soil moisture was used to check that the experimental plot had constantly more than 20% water content in soil. Véraison in the experimental plot controlled at constantly high soil water content started 10 days, 4 days and 1 day later than that in the non-irrigated experimental plot in the 2017, 2018 and 2019 growing seasons, respectively. The constantly high soil water content had no notable effects on berry quality, such as berry characteristics and berry composition, at harvest compared with the non-irrigated experimental plot, although there was a certain tendency that constantly high soil water content decreased anthocyanin contents in berry skins compared with those of non-irrigated grapevines during the three growing seasons. We postulated that waterlogging damage due to the increase in soil water content by frequent rainfall would be minimised by the selection of rootstock that confers tolerance to waterlogging stress for scion cultivars and/or viticultural practices to prevent decrease in soil temperature. Also, the introduction of Internet of Things technology for monitoring water status in vineyard soil is expected to contribute to improving practical approaches to vineyard soil water management.

scholarly journals Recycled Newspaper: An Effective Mulch for Micropropagated Raspberry Transplants

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 844D-844
Author(s):  
Michele R. Warmund ◽  
Chris J. Starbuck ◽  
Chad E. Finn
Keyword(s):  
Wheat Straw ◽  
Vegetative Growth ◽  
Fruit Yield ◽  
Soil Conditions ◽  
Plant Survival ◽  
High Soil ◽  
Air Temperatures ◽  
Black Plastic

Micropropagated `Redwing' raspberry plants were grown with various mulch treatments to determine their influence on vegetative growth and fruit yield. Treatments included shredded hardwood bark mulch; degradable black plastic; sawdust; wheat straw; ground, shredded, or ground + shredded newspaper; and an unmulched control. During the year of establishment, high soil and air temperatures near the surface of the black plastic most likely reduced plant survival. The following year, vegetative growth and fruit yield of plants that were previously mulched with black plastic were also reduced. Plants mulched with bark, sawdust, straw, and all newspaper treatments had greater yields than those established with black plastic or in the unmulched control plots. Although yields were similar among plants in all newspaper mulch treatments, ground newspaper was lost under windy conditions and tended to mat down after rainfall, resulting in soggy soil conditions.

scholarly journals High Soil Phosphorus Application Significantly Increased Grain Yield, Phosphorus Content but Not Zinc Content of Cowpea Grains

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 802
Author(s):  
Saba B. Mohammed ◽  
Daniel K. Dzidzienyo ◽  
Adama Yahaya ◽  
Muhammad L. Umar ◽  
Muhammad F. Ishiyaku ◽  
...  
Keyword(s):  
Grain Yield ◽  
Soil Phosphorus ◽  
P Deficiency ◽  
Soil P ◽  
High Soil ◽  
Wide Range ◽  
Zn Content ◽  
P Application ◽  
Phosphorus Application ◽  
The Impact

To ameliorate the impact of soil phosphorus (P) deficiency on cowpea, the use of P-based fertilizers is recommended. Plant zinc (Zn) is an essential nutrient required by plants in a wide range of processes, such as growth hormone production and metabolism. However, a negative association between plant Zn content and high P application has been reported in some crops. There are few reports about soil P application and plant Zn content relationship on cowpea. Thus, this study investigated the response of cowpeas to three P rates in the screenhouse (0, 1.5, and 30 mg P/kg) and field (0, 10, and 60 kg P2O5/ha) and their effects on plant P and Zn content, biomass, and grain yield. In the screenhouse, shoot and root dry weights, and shoot P and Zn content were measured. Shoot dry weight, grain yield, grain P, and Zn contents were determined from field plants. Higher rates of P led to increased shoot biomass and grain yield of the field experiment but were not associated with a significant change in shoot or grain Zn content. There was not a significant correlation between grain yield and Zn content in high soil P (p < 0.05). The effect of higher P application on reduced plant Zn contents may be genotype-dependent and could be circumvented if genotypes with high Zn content under high soil P are identified.

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