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Articles 2461 - 2490 of 26272
Full-Text Articles in Entire DC Network
The Effect Of Fungicide Application On Seed Yield Of Dactylis Glomerata, R E. Welty
The Effect Of Fungicide Application On Seed Yield Of Dactylis Glomerata, R E. Welty
IGC Proceedings (1977-2023)
Leaf diseases of orchardgrass (Dactylis glomerata L.) caused by Mastigosporium rubricosum (Dearn. and Barth.) Nannf. (eyespot), Rhyncosporium orthosporum Caldwell (scald), and Cercosporidium (Scolecotrichum) graminis Fckl. (leaf streak) are widely distributed in the seed-producing area in Oregon (Sprague, 1950). These diseases may occur alone or in combination and are more severe when weather is cool and wet. Symptoms develop in February and can extend through June. In most years, all three diseases can be found on individual plants in April and May. The diseases cause premature death of leaves, but not defoliation. When severe on the upper leaves (the flag …
Fungicide Effect On Temperate Forage Grasses, M P. Rolston, J G. Hampton, M D. Hare, R E. Falloon
Fungicide Effect On Temperate Forage Grasses, M P. Rolston, J G. Hampton, M D. Hare, R E. Falloon
IGC Proceedings (1977-2023)
The traditional use of fungicides in temperate forage grass seed crops has been for the control of diseases. However, in perennial ryegrass (Lolium perenne L.) seed crops, fungicides applied close to anthesis have increased seed yields even where the incidence· of leaf pathogens was low (Hampton and Hebblethwaithe, 1984, 1985; Hampton et al., 1985). The response was attributed to increased leaf area duration by delaying the senescence of photosynthetic tissue. In another trial in which levels of stem rust (Puccinia graminis Pers) were low, fungicides also increased perennial ryegrass seed yield. The response was associated with both disease …
Effect Of Fungicides On Perennial Ryegrass Seed Production, G H. Horeman
Effect Of Fungicides On Perennial Ryegrass Seed Production, G H. Horeman
IGC Proceedings (1977-2023)
Significant seed yield increases were obtained (Hampton and Hebblethwaite, 1984) to fungicide application before ear emergence only, but the effects of fungal pathogens on the rye grass seed crop could not be assessed. After application of _ propiconazol before anthesis significant seed yield increases were obtained, even in absence of fungal pathogens (Horeman 1987). In this paper results of two experiments are presented. The aim was to investigate whether yield increases after fungicide application is consistent over the years and to find an explanation for these increases.
Breeding In Progress For Seed Retention In Orchardgrass (Dactylis Glomereata L.), M Falcinelli, V Negri, F Veronesi
Breeding In Progress For Seed Retention In Orchardgrass (Dactylis Glomereata L.), M Falcinelli, V Negri, F Veronesi
IGC Proceedings (1977-2023)
As is well known, orchardgrass seeds do not mature and ripen uniformly and early maturing seeds frequently shatter before late developing ones mature. Consequently, in seed crops, high losses can either be due to early'harvesting resulting in an excess of light seeds, or to delayed harvesting resulting in seed shattering. Several agronomic strategies are used by seed producers to minimize seed losses, but the additional costs involved have limited their adoption. Previous papers (Falcinelli et al., 1983 ; 1984) have reported that many populations of D. glomerata from Southern Italy and some populations from Central Italy showed no seed shattering …
Effect Of Frost On Panicle Production In Dactylis Glomerata, O T. Niemelainen
Effect Of Frost On Panicle Production In Dactylis Glomerata, O T. Niemelainen
IGC Proceedings (1977-2023)
The average seed yield of cocksfoot in Finland is small. The panicle formation has often been poor although the stand has otherwise been in good condition. In the present study the importance of early summer frost on the failure of panicle formation in cocksfoot was studied. The cold tolerance of cocksfoot has been observed to be poor compared to other perennial grasses (Gudleifsson et al., 1986). The sensitivity of cocksfoot to frost during the growing season was observed in the experiment of Nikolaevskaya (1973) where a frost treatment at flowering stage of cocksfoot completely destroyed the caryopses. Results of experiments …
A Comparison Of Rhizome And Seed Propagation Of Three Grasses Of Nei Mongol: Chinese Wildrye, Tender Pennisteum And Reedlike Foxtail, Na Sen, Lee Yan Qin, Su Xiao Lin
A Comparison Of Rhizome And Seed Propagation Of Three Grasses Of Nei Mongol: Chinese Wildrye, Tender Pennisteum And Reedlike Foxtail, Na Sen, Lee Yan Qin, Su Xiao Lin
IGC Proceedings (1977-2023)
China is making great efforts to re-vegetate and improve her rangelands. In Inner Mongolia, improvement and expansion of the rangeland base is necessary to meet the needs of a flourishing local livestock industry, and growing demand for livestock products (including draft animals) in China as a whole. But the harsh growing conditions in this cold, dry and windy steppe country make seedling establishment difficult, and propagation with seed is risky at best. Methods of grassland propagation that minimize this risk, reduce the rest period after planting, and result in a more productive range will aid the revegetation effort considerably, and …
The Effect Of Megachilla Rotundata On The Yield And Qualitative Characters Of Alfalfa Seed, B Radenovic, S Starcevic
The Effect Of Megachilla Rotundata On The Yield And Qualitative Characters Of Alfalfa Seed, B Radenovic, S Starcevic
IGC Proceedings (1977-2023)
The increasing use of insecticides in the Yugoslav agriculture, ploughing of meadows and pastures and the expansion of areas under alfalfa grown for seed have resulted in the reduction of useful entomofauna and thus also in the decline of yields of alfalfa seed due to the reduced number of pollinators. This was first indicated upon in the United States, by Knowels, 1943, and in Yugoslavia, it was pointed out by Bosnjak, 1978 and Radenovic and Starcevic, 1982. All these authors agree that there is a positive correlation between the number of Megachillidae, the number of open flowers and embryos. According …
Determination De L’Effet Du Phosphore Et Des Intervallets D’Irrigation Sur La Production De Graines De Trefle Bersim En Iran, A Vaez Zadeh
Determination De L’Effet Du Phosphore Et Des Intervallets D’Irrigation Sur La Production De Graines De Trefle Bersim En Iran, A Vaez Zadeh
IGC Proceedings (1977-2023)
La culture du trefle Bersim (Trifolium alexandrinum) devient de plus en plus importante en Iran. Elle est pratiquee dans les rizieres apres la recolte du riz. Aujourd'hui, cette culture s'etend sur 40.000 ha et la production atteint 500.000 tonnes de foin sec, soit un rendement moyen de 12.5 t/ha. Le ministere de !'Agriculture developpe un important programme pour augmenter la superficie jusqu'a 200.000 ha. Ceci correspondra a la moitie de toutes Jes rizieres. La culture du trefle Bersim s'est fortement developpee pendant ces dernieres annees en Iran: la superficie a augmente de 578,5 ha en 1982 a 39.500 …
Seed Yield, Fodder Yield And Persistence In White Clover Cvs Of Different Origins. Results Of Trials Conducted At Lodi (Irrigated Po Valley), R Paoletti, C Locattello
Seed Yield, Fodder Yield And Persistence In White Clover Cvs Of Different Origins. Results Of Trials Conducted At Lodi (Irrigated Po Valley), R Paoletti, C Locattello
IGC Proceedings (1977-2023)
White clover is the most important pasture legume in many EEC countries (white clover-ryegrass pasture system) and a good component of permanent and rotated polyphytic meadows in North Italy (irrigated Po Valley where the Ladino subspecies developed through self selection). The main characteristics of the species are N2 fixation and high nutritional value (quality). Therefore, white clover seed usage in the EEC is expected to still be important in the next decades. A number of performing varieties have recently been developed by EEC Research Institutes. An assessment of their seed production potential is necessary in view of self-sufficiency and consequent …
Inoculant Production With Gamma Irradiated Peat And Lyophilized Cultures Of Rhizobium. Survival On Pelleted Seeds And Mineral Oil, M Lopez, R S. Bradley
Inoculant Production With Gamma Irradiated Peat And Lyophilized Cultures Of Rhizobium. Survival On Pelleted Seeds And Mineral Oil, M Lopez, R S. Bradley
IGC Proceedings (1977-2023)
In tropical countries one of the ways of improving inoculant distribution consists on seed-pre-inoculation and on the production of lyophilized inoculants allowing a higher viability during the storage period. Thus, it is necessary to learn the rhizobium survival in pre-inoculated seeds and in lyophilized flasks, as well as in mineral oil used as a rhizobium carrier.
Les Inineraires Techniques Pour La Production De Semences De Trefle Blanc En France, J Aletru, Y Bouchet
Les Inineraires Techniques Pour La Production De Semences De Trefle Blanc En France, J Aletru, Y Bouchet
IGC Proceedings (1977-2023)
Le Trefle blanc est une legumineuse fourragere ayant une morphologie et une physiologie tout a fait originales par rapport aux autres especes fourrageres que nous avons l'habitude de travailler : luzerne, trefle violet, sainfoin, etc. Le Trefle blanc a un port rampant, l'essentiel de la croissance s'effectue horizontalement, Jes parties aeriennes sont constituees de petioles, de feuilles en phase vegetative, auxquelles s'ajoutent des pedoncules et des inflorescences en phase reproductrice. Le stolon, « colonne vertebrale » des parties aeriennes, est l'organe de reserve ayant une importance preponderante. II colonise le sol en emettant de 70 a 110 metres de stolons …
Environmental Considerations For Lotus Production: Seed Versus Herbage, P R. Beuselinck, R L. Mcgraw
Environmental Considerations For Lotus Production: Seed Versus Herbage, P R. Beuselinck, R L. Mcgraw
IGC Proceedings (1977-2023)
Broadleafed birdsfoot trefoil (Lotus corniculatus L.), is recognized for good productivity on marginal soils (Seaney and Henson, 1970), high feeding value (Marten and Ehle, 1984), stock-piling efficiency (Collins, 1982) and freedom from bloatinducement in ruminants (Marten and Jordan, 1979) makes it a worthy herbage crop for many areas and grazing situations. The most productive USA areas are New England, the West Coast, the North Central Plains, and some isolated areas of higher elevations in the South (Grant and Marten, 1985). Difficulty in harvesting sufficient quantities of seed is a major factor limiting the use and production of birdsfoot trefoil in …
Agricultural Behaviour Of Lablab Purpureus Cv. Rongai Under Cuban Conditions, V A. Remy, C Matias, A Perez, M Beavogui
Agricultural Behaviour Of Lablab Purpureus Cv. Rongai Under Cuban Conditions, V A. Remy, C Matias, A Perez, M Beavogui
IGC Proceedings (1977-2023)
Production strategy of livestock in Cuba is based upon the utilization of swards as the main feeding source. Nevertheless, the climatical conditions that exist in certain period of the year lead to a seasonal productive unbalance due to the decreasing sequence of rainfall. Several alternatives have been adopted against this situation and one of them is the utilization of temporary cultivars. Taking into consideration the previous situation, the possibility of spreading Lablab purpureus, the suitable growth that it presents under temperatures among 18-30 °C (Duke, 1983), rainfall among 200-2500 mm (National Academy of Science, 1979) and its seed production from …
Influence Of The Manner Of Sowing And Vegetation Cycle On The Yield And Seed Quality Of Birdfoot Trefoil (Lotus Corniculatus), D Gataric, S Alibegovic-Grbic
Influence Of The Manner Of Sowing And Vegetation Cycle On The Yield And Seed Quality Of Birdfoot Trefoil (Lotus Corniculatus), D Gataric, S Alibegovic-Grbic
IGC Proceedings (1977-2023)
In ecological conditions of Yugoslavia, birdsfoot trefoil, with its positive features, presents a very significant fodder crop, especially for the hill and mountain regions. However, due to poor seed production technology, there is a shortage of seed for more intensive production. Seed is usually produced on areas intended for the production of fodder, hand sown with large quantities of seed (25-35 kg/ha). The study was undertaken. with the following targets : I/determining the influence of the manner of sowing and vegetation cycle on the yield and the quality of seed ; 2/ determining the optimum sowing manner and vegetation cycle …
Nouvelles Possibilites De Lutte Contre Les Ravageurs De La Luzerne Porte-Graine En France, J Hacquet
Nouvelles Possibilites De Lutte Contre Les Ravageurs De La Luzerne Porte-Graine En France, J Hacquet
IGC Proceedings (1977-2023)
La mai'trise des insectes ravageurs dans la luzerne portegraine est une necessite pour l'obtention de rendements eleves et reguliers. La collaboration etroite entre le Service Technique de la FNAMS et la Laboratoire de Zoologie de l'INRA de Lusignan a permis d'inventorier les differents ravageurs, de mettre au point une panoplie de traitements et de faire connai'tre les moyens de lutte aupres de tous Jes praticiens de cette culture (FNAMS-INRA, 1980 et 1986). De plus des reseaux d'Avertissements Agricoles ont ete mis en place et suivis par le Service de la Protection des Vegetaux, avec la participation des professionnels (Perron, 1987). …
Variation Of Seed Yield And Its Components In Common Vetch (Vicia Sativa L.) Under Different Conditions, E Acikgoz, I Turgut, H Ekiz
Variation Of Seed Yield And Its Components In Common Vetch (Vicia Sativa L.) Under Different Conditions, E Acikgoz, I Turgut, H Ekiz
IGC Proceedings (1977-2023)
Common vetch (Vicia sativa L.) is widely used as a seed or hay crop in Turkey. In humid coastal areas it is principally used fot hay or green herbage while in dry regions it is used mostly for seed. Roughly ground vetch seed is a popular concentrated feed and mixed with straw or cereal grain (A9ikg6z, 1988). Approximately 200.000 ha of common vetch are seeded every year in Turkey. It is sown mostly as a spring-seeded crop and is often subjected to severe heat and drought stress as the season progress. Yields are generally low with an average seed …
White Clover Seed Production In Two Mediterranean Environments Of Tuscany And Sardinia, P Bullitta, Simonetta Bullitta, A Pardini, S Piemontese, P P. Roggero, P Talamucci
White Clover Seed Production In Two Mediterranean Environments Of Tuscany And Sardinia, P Bullitta, Simonetta Bullitta, A Pardini, S Piemontese, P P. Roggero, P Talamucci
IGC Proceedings (1977-2023)
Purpose of the trialwas the identification of the most suitable varieties for white clover Trifolium repens L. seed production in Mediterranean environments. The main reason of this paper is to verify whether it is possible to produce seed of European varieties of white clover in south Europe considering that surfaces for seed production are decreasing in the northern European countries that were normally producers of white clover seed. The production of clover seed in southern Europe could advantageously replace the import from New Zealand and California.
Vegetative Propagation Of White Clover An Application In White Clover Seed Production, P C.D Newton, A I. Popay
Vegetative Propagation Of White Clover An Application In White Clover Seed Production, P C.D Newton, A I. Popay
IGC Proceedings (1977-2023)
Establishment of white clover for agricultural purposes is invariably by seed. However, natural regeneration is almost entirely vegetative (Chapman, 1987), and flowering may be restricted to a small proportion of individuals within a population (Burdon, 1980) When white clover is present in the soil seedbank, there is potential for both intra- (between classes) and inter-varietal contamination of seed crops. Lancashire et al., (1985) have commented that genetic contamination of white clover seed is a world-wide problem. Volunteer seedlings may be removed from between the crop rows mechanically, but there remains an untreatable area close to the crop which is available …
Viability Of Stylosanthes Seeds As Affected By Storage Duration, J B. Brolmann, B J. Boman
Viability Of Stylosanthes Seeds As Affected By Storage Duration, J B. Brolmann, B J. Boman
IGC Proceedings (1977-2023)
Tropical legumes such as members of the genus Stylosanthes (sty lo) contribute to the improvement of pastures in the tropics and sub-tropics. Stylosanthes is usually established from seed. In Florida, seed of Stylosanthes has to be produced and collected before the onset of the winter since occasional frosts can damage seed-bearing vegetation. Therefore, early maturing Stylosanthes varieties have been developed. In stylo seed collections maintained for breeding or seed exchange purposes, maintenances of seed viability is critical. New pests or new diseases may require a renewed screening of stored accessions. It is important, then, that the seed source of this …
Modification Of Stolon Growth, Development And Flowering By Plant Growth Regulators In White Clover (Trifolium Repens L.) Seed Crops, A H. Marshall, D H. Hides
Modification Of Stolon Growth, Development And Flowering By Plant Growth Regulators In White Clover (Trifolium Repens L.) Seed Crops, A H. Marshall, D H. Hides
IGC Proceedings (1977-2023)
Within the EEC the need to develop low cost less intensive systems of animal production has led to an increase in the importance of legumes generally, and white clover in particular. At present, annual white clover seed usage within the EEC is approximately 4,000 tonnes, however, the self sufficiency rate is expected to fall below 50 % by the end of the 1980s due principally to unpredictable seed yields which make it an unprofitable crop for seed growers. The main component of seed yield in white clover is the number of ripe inflorescences at harvest (Zaleski, 1961) however, the proportion …
Growth Regulator Effects On Seed Production Of Lotus Corniculatus L. And Lotus Uliginosus Schkuhr., J G. Hampton, Qingfeng Li, M D. Hare
Growth Regulator Effects On Seed Production Of Lotus Corniculatus L. And Lotus Uliginosus Schkuhr., J G. Hampton, Qingfeng Li, M D. Hare
IGC Proceedings (1977-2023)
Seed yield in both Lotus corniculatus L. and Lotus uliginosus Schkuhr. (syn. L. pedunculatus Cav.) is considered to be limited by the indeterminate growth habit which results in a protracted (2-4 month) flowering period (Witchwoot, 1987; Li and Hill, 1988) leading to wide variation in seed maturity and seed loss through pod shattering. In both species seed yield is determined primarily by the number of inflorescences (Mos, 1983 ; Witchwoot, 1987), and thus treatments which alter or remove apical dominance, enhance shoot production or main stem branching thereby increasing inflorescence numbers (Clifford et al., 1983 ; Li and Hill, 1988), …
Plant Resources And Forage Seed Production In China, Dong Peihua
Plant Resources And Forage Seed Production In China, Dong Peihua
IGC Proceedings (1977-2023)
China is situated in the Eastern part of Asia ; from North to South it extends across the temperate and tropical zones. From East to West it has humid, semiarid, arid regions. There is no frost through the year in some part ofHainan Island, Yunnan, Guangdong and Taiwan provinces. Therefore plants grow the year round and there is a wide range of tropical species. The geographical and climatical differences resulted in rich grass resources. There are three hundred million hectares of natural pastures in Northern China, with more than 4000 plant species. These plants have different degrees of feeding value. …
Role And Key Species Of Freshwater Snails In Enhancing Plant Growth Performance Of Duckweeds (Spirodela Polyrhiza) In Rice Paddy Fields, Dwi Harya Yudistira, Fariz Ardiansyah Gunawan, Shahla Aurelia Arif, Satoru Sato
Role And Key Species Of Freshwater Snails In Enhancing Plant Growth Performance Of Duckweeds (Spirodela Polyrhiza) In Rice Paddy Fields, Dwi Harya Yudistira, Fariz Ardiansyah Gunawan, Shahla Aurelia Arif, Satoru Sato
Jurnal Kultivasi
Freshwater snails are widely distributed in the rice field ecosystem. Freshwater snails’ feeding and metabolic activities can potentially increase the complexity of freshwater ecosystems, particularly through the nutrient cycle. Cipangopaludina chinensis, Physa acuta, and Semisulcospira libertina are commonly found in Japan's paddy field ecosystems. Spirodela polyrhiza is expected to support biodiversity, improve soil fertility, and reduce greenhouse gas emissions in paddy field ecosystems, while providing food and shelter for the snails. In this study, we investigated the effects of these three snail species on the growth of Spirodela polyrhiza. The results showed that the presence of P. acuta or C. …
Registration Of R19-42848 As A Drought-Tolerant, High-Yielding Soybean Germplasm Line, Chengjun Wu, Derrick Harrison, Liliana Florez-Palacios, Andrea Acuna, Daniel Rogers, Rafael Marmo, John Carlin, Ben Fallen, Leandro Mozzoni, Caio Cenella Vieira
Registration Of R19-42848 As A Drought-Tolerant, High-Yielding Soybean Germplasm Line, Chengjun Wu, Derrick Harrison, Liliana Florez-Palacios, Andrea Acuna, Daniel Rogers, Rafael Marmo, John Carlin, Ben Fallen, Leandro Mozzoni, Caio Cenella Vieira
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
R19-42848 (Reg. no. GP-532, PI 706865) is a high-yielding soybean [Glycine max (L.) Merr.] germplasm with drought tolerance released by the University of Arkansas System - Division of Agriculture Research & Extension Center in 2024. It is an F4-derived selection from the cross R12-2237 (drought-tolerant) x R12-519 (high-yielding). R19-42848 is a conventional (non-genetically modified) soybean with a relative maturity of 5.2. Plants have determinate growth habit with purple flower color, gray pubescence, and tan pod wall at maturity. Seed of R19-42848 has buff hilum color, 100-seed weight of 13.8 g, and contains on average 404.5 and 211.5 g kg-1 of …
The Interaction Of Nitrogen And Potassium Nutrients In Increasing Growth, Yield, And Quality Of Sweet Corn Products, Risqa Naila Khusna Syarifah, Purwanto, Agus Sarjito, Hana Hanifa, Lafi Na'imatul Bayyinah
The Interaction Of Nitrogen And Potassium Nutrients In Increasing Growth, Yield, And Quality Of Sweet Corn Products, Risqa Naila Khusna Syarifah, Purwanto, Agus Sarjito, Hana Hanifa, Lafi Na'imatul Bayyinah
Jurnal Kultivasi
Fertilizer application is a strategy that can be used to increase sweet corn production and maintain environmental balance. This research aims (i) to determine the optimal dose of nitrogen and potassium fertilizers for sweet corn production; (ii) to study the agronomic and physiological responses of sweet corn plants at different nitrogen and potassium dose; and (iii) to determine the nitrogen (N) and potassium (K) nutrient uptake and efficiency by sweet corn at different fertilizer doses and their interactions on yield and yield quality. The research was conducted from March to November 2022 in the Faculty of Agriculture, Universitas Jenderal Soedirman. …
Effect Of Meta-Topolin And Kinetin At Various Concentrations On Shoot Multiplication In White Turmeric (Curcuma Zedoaria Rosc.), Murgayanti, Annisa Nanda Nur Azizah, Anne Nuraini, Erni Suminar, Syariful Mubarok
Effect Of Meta-Topolin And Kinetin At Various Concentrations On Shoot Multiplication In White Turmeric (Curcuma Zedoaria Rosc.), Murgayanti, Annisa Nanda Nur Azizah, Anne Nuraini, Erni Suminar, Syariful Mubarok
Jurnal Kultivasi
White turmeric is a medicinal plant widely used to treat various diseases. The limited availability of white turmeric seedlings is influenced by the scarcity of quality seeds due to the long dormancy of the rhizomes and the high incidence of pathogen attacks. Tissue culture techniques are one alternative to address the problem of white turmeric seedling availability. This study aims to determine the best concentrations of meta-topolin and kinetin for in vitro shoot multiplication of white turmeric. The research was conducted from January to June 2022 at the tissue culture laboratory, Faculty of Agriculture, Universitas Padjadjaran. This study used a …
The Effect Of Weed Control Using Herbicide On Soil Bacteria, Growth, And Yield Of Sweet Corn, Lafi Na'imatul Bayyinah, Purwanto, Risqa Naila Khusna Syarifah, Rama Adi Pratama, Ida Widiyawati, Hendra
The Effect Of Weed Control Using Herbicide On Soil Bacteria, Growth, And Yield Of Sweet Corn, Lafi Na'imatul Bayyinah, Purwanto, Risqa Naila Khusna Syarifah, Rama Adi Pratama, Ida Widiyawati, Hendra
Jurnal Kultivasi
Weeds are managed by herbicides, but this can reduce the abundance of soil bacteria. This research aimed to determine the effect of active compounds of herbicides on weeds, the abundance of soil bacteria, growth and yield of sweet corn. The experiment was conducted from June to October 2023 in the fields and Laboratory of Agronomy and Horticulture, Universitas Jenderal Soedirman, Purwokerto. A randomized block design was used, consisting of eight treatments and four replications. The treatments included control (H0); weeding (H1); paraquat (H2); glyphosate (H3); paraquat, atrazine, mesotrione (H4); glyphosate, atrazine, mesotrione (H5); paraquat, atrazine, mesotrione, nicosulfuron (H6); and glyphosate, …
17 - Mapping The Spatial Distribution Of Submerged Aquatic Vegetation Using Commercial Satellite Imagery, Brandon Watson
17 - Mapping The Spatial Distribution Of Submerged Aquatic Vegetation Using Commercial Satellite Imagery, Brandon Watson
Undergraduate Research Symposium
Seagrass in the Chesapeake Bay has seen an increase due to restoration efforts since the 90s, but with the extreme change of climate, we are unsure if the seagrass will thrive or perish, and where it will occur in the bay. Seagrass stabilizes coastal sediments, reducing erosion and protecting shorelines. It provides crucial habitats and nursery grounds for a diverse range of marine species, supporting both biodiversity and fisheries. Additionally, they play a significant role in carbon sequestration, which mitigates the effects of climate change. This study specifically looked at the area from the mouth of the Rappahannock River up …
05 - Freeze Severity And Black Mangrove Growth: Influence Of Plant Origin On Side Shoot Development, Kathryn Bourlier, Katelyn Overstreet, Erik Yando
05 - Freeze Severity And Black Mangrove Growth: Influence Of Plant Origin On Side Shoot Development, Kathryn Bourlier, Katelyn Overstreet, Erik Yando
Undergraduate Research Symposium
Despite a reduction in freeze events and subsequent expansion in the southeastern US, freeze impacts still play a critical role in mangrove morphology and local range limits. Freeze events can impair growth, limit survival, and commonly prompts side shoot development. This study examines the relationship between plant origin, freeze severity, and side shoot development in black mangroves. Our findings show that plants from each location exhibited distinct morphological responses, with similarities more closely linked to environmental conditions rather than geographic proximity. Our work offers insights into thermal tolerance thresholds and implications for mangrove stature in coastal wetlands.
Intraspecific Variation In Morphological And Biochemical Responses To Salinity And Flooding In Phragmites Australis, Olivia Hurley
Intraspecific Variation In Morphological And Biochemical Responses To Salinity And Flooding In Phragmites Australis, Olivia Hurley
LSU Master's Theses
Phragmites australis is a widespread wetland plant species with numerous haplotypes, several of which are highly invasive. In low-lying coastal marshes of Louisiana, the Delta-type (haplotype M1) dominates across a wide range of salinity and flooding environments. This suggests that Phragmites may be highly adaptable to diverse environmental conditions and that there may be a genetic component, as seen in other coastal wetland plant species. While non-native Phragmites haplotypes are targeted for control and removal in many areas, they are considered beneficial for marsh stabilization and contributing to elevation gain in coastal Louisiana, where several areas experience rapid land loss. …