Temporal and varietal variation in sugarcane post-harvest residue biomass yields and chemical composition

The aim of this work was to study the effect of post-harvest forestry residue management practices on the epigeal coleopterans diversity and abundance in a 1-yr old Pinus radiata plantation. Approximately 25-yr old P. radiata plantation was available, which was harvested by clear-cutting at the beginning of 2010 in Constitución, central Chile. Three post harvest residue management treatments were installed in a fully randomized design in blocks: 1) a control, where residues were intact left; 2) residue removed (> 2.5 cm diameter); and 3) burned. The coleopterans were sampled in spring and summer, using linear transects with pitfall traps. The abundance and richness, and diversity index of coleopterans were determined. A total of 23 species of 13 families were obtained. Both in the springand summer, the treatment with residues left registered significantly greater abundance and species richness. In the residue management, the practices of intact leaving residue should be considered as the least impacting on diversity and abundance of epigeal coleopterans and is recommended for creating refugee areas to promote diversity of beetles in this area of study.

Download Full-text

Latitudinal, seasonal and depth-dependent variation in growth, chemical composition and biofouling of cultivated Saccharina latissima (Phaeophyceae) along the Norwegian coast

Journal of Applied Phycology ◽

10.1007/s10811-020-02038-y ◽

2020 ◽

Vol 32 (4) ◽

pp. 2215-2232 ◽

Cited By ~ 3

Author(s):

Silje Forbord ◽

Sanna Matsson ◽

Guri E. Brodahl ◽

Bodil A. Bluhm ◽

Ole Jacob Broch ◽

...

Keyword(s):

Chemical Composition ◽

Latitudinal Gradient ◽

Biomass Yield ◽

Saccharina Latissima ◽

Seaweed Farming ◽

Membranipora Membranacea ◽

Salinity Levels ◽

Biomass Yields ◽

Tissue Nitrogen ◽

Frond Length

Abstract The Norwegian coastline covers more than 10° in latitude and provides a range in abiotic and biotic conditions for seaweed farming. In this study, we compared the effects of cultivation depth and season on the increase in biomass (frond length and biomass yield), chemical composition (protein, tissue nitrogen, intracellular nitrate and ash content) and biofouling (total cover and species composition) of cultivated Saccharina latissima at nine locations along a latitudinal gradient from 58 to 69° N. The effects of light and temperature on frond length and biofouling were evaluated along with their relevance for selecting optimal cultivation sites. Growth was greater at 1–2 m than at 8–9 m depth and showed large differences among locations, mainly in relation to local salinity levels. Maximum frond lengths varied between 15 and 100 cm, and maximum biomass yields between 0.2 and 14 kg m−2. Timing of maximum frond length and biomass yield varied with latitude, peaking 5 and 8 weeks later in the northern location (69° N) than in the central (63° N) and southern (58° N) locations, respectively. The nitrogen-to-protein conversion factor (averaged across all locations and depths) was 3.8, while protein content varied from 22 to 109 mg g−1 DW, with seasonality and latitude having the largest effect. The onset of biofouling also followed a latitudinal pattern, with a delayed onset in northern locations and at freshwater-influenced sites. The dominant epibiont was the bryozoan Membranipora membranacea. Our results demonstrate the feasibility of S. latissima cultivation along a wide latitudinal gradient in North Atlantic waters and underscore the importance of careful site selection for seaweed aquaculture.

Download Full-text

Post-harvest residue decomposition and nitrogen dynamics in Pinus radiata plantations of different N status

Forest Ecology and Management ◽

10.1016/s0378-1127(00)00619-8 ◽

2001 ◽

Vol 154 (1-2) ◽

pp. 55-67 ◽

Cited By ~ 23

Author(s):

R.L Parfitt ◽

G.J Salt ◽

S Saggar

Keyword(s):

Pinus Radiata ◽

Nitrogen Dynamics ◽

Post Harvest ◽

Residue Decomposition ◽

N Status ◽

Harvest Residue

Download Full-text

Estimation of Long-term Effects of Harvest Interval and Intensity, and Post-harvest Residue Management on the Soil Carbon Stock of Pinus densiflora Stands using KFSC Model

Journal of Korean Forestry Society ◽

10.14578/jkfs.2013.102.1.082 ◽

2013 ◽

Vol 102 (1) ◽

pp. 82-89 ◽

Cited By ~ 2

Author(s):

Chan-Woo Park ◽

Koong Yi ◽

Jongyeol Lee ◽

Kyeong-Hak Lee ◽

Myong-Jong Yi ◽

...

Keyword(s):

Soil Carbon ◽

Carbon Stock ◽

Pinus Densiflora ◽

Residue Management ◽

Long Term Effects ◽

Soil Carbon Stock ◽

Post Harvest ◽

Harvest Residue

Download Full-text

Chemical composition and anti-fungal activities of three essential oils fromSaturejaspp. on four post-harvest pathogens of strawberry fruit

The Journal of Horticultural Science and Biotechnology ◽

10.1080/14620316.2011.11512776 ◽

2011 ◽

Vol 86 (4) ◽

pp. 371-376 ◽

Cited By ~ 4

Author(s):

A. Nabigol

Keyword(s):

Chemical Composition ◽

Essential Oils ◽

Strawberry Fruit ◽

Post Harvest ◽

Anti Fungal

Download Full-text

Influence of post-harvest residue management and cultivar on tiller dynamics and seed yield in timothy

Canadian Journal of Plant Science ◽

10.4141/cjps94-092 ◽

1994 ◽

Vol 74 (3) ◽

pp. 507-513 ◽

Cited By ~ 6

Author(s):

M. H. Entz ◽

S. R. Smith Jr. ◽

D. J. Cattani ◽

A. K. Storgaard

Keyword(s):

Seed Yield ◽

Yield Components ◽

Phleum Pratense ◽

Residue Management ◽

Cultivar Differences ◽

Grass Species ◽

Compensatory Mechanisms ◽

Burn Treatment ◽

Post Harvest ◽

Harvest Residue

Timothy (Phleum pratense L.) is a bunch-type cool season perennial grass species grown in Manitoba primarily for seed production. The objectives of this study were to determine the effect of post-harvest residue management (straw removal-SR, straw and stubble removal-SSR and fall burning-Burn) on tiller production, yield components and seed yield of five timothy cultivars (Basho, Climax, Goliath, Hokuo and Salvo), and to better understand the association between yield components and final seed yield in timothy crops grown in the dry subhumid region of the Canadian prairies. Two experiments were conducted over four production seasons at Arborg, MB and one production season at St. Claude, MB. Tiller number per m2 in spring (TS) and at harvest (THV) were measured in 1990 at St. Claude and in 1990 and 1991 at Arborg. Residue management (RM) treatment ranking for TS was Burn < SR < SSR, but tiller senescence and compensatory mechanisms resulted in equivalent THV values across all RM treatments. The number of seed-bearing tillers m−2 at harvest was also unaffected by RM. Seed yield was unaffected by RM in all instances, except at Arborg in 1989 where a significant RM × cultivar interaction was observed. The basis of the interaction was the greater sensitivity of Hokuo to the Burn treatment. Cultivar differences for seed yield were relatively consistent over years and between the two experiments, with Climax always ranking in the high yielding group and Salvo with the low yielding group. Based on analysis of yield components, it appeared that RM most affected early season growth (i.e. TS), while cultivar most affected later season growth (fertile tillers per unit area, seed yield per fertile tiller (SYFT)). Seed yield differences were most closely associated with SYFT (r2 = 0.97**) across cultivar treatments. Key words: Burning, straw removal, harvest index, yield components, forages

Download Full-text