Journal ArticleDOI
Use of remote sensing to determine the relationship of early vigour to grain yield in canola (Brassica napus L.) germplasm
TLDR
It is suggested that canola breeders may use NDVI to objectively select for vigorous genotypes that are more likely to have higher grain yields.Abstract:
Early crop vigour in canola, as in other crops, is likely to result in greater competition with weeds, more rapid canopy closure, improved nutrient acquisition, improved water-use efficiency, and, potentially, greater final grain yield. Laborious measurements of crop biomass over time can be replaced with newer remote-sensing technology to aid data acquisition. Normalised difference vegetation index (NDVI) is a surrogate for biomass accumulation that can be recorded rapidly and repeatedly with inexpensive equipment. In seven small-plot field experiments conducted over a 4-year period with diverse canola germplasm (n = 105), we have shown that NDVI measures are well correlated with final grain yield. We found NDVI values were most correlated with yield (r >0.7) if readings were taken when the crop had received 210–320 growing degree-days (usually the mid-vegetative phase of growth). It is suggested that canola breeders may use NDVI to objectively select for vigorous genotypes that are more likely to have higher grain yields.read more
Citations
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Journal ArticleDOI
Predicting Rice Grain Yield Based on Dynamic Changes in Vegetation Indexes during Early to Mid-Growth Stages
Ke Zhang,Xiaokang Ge,Pengcheng Shen,Wanyu Li,Xiaojun Liu,Qiang Cao,Yan Zhu,Weixing Cao,Yongchao Tian +8 more
TL;DR: The new dynamic model effectively predicted grain yield at stem elongation and booting stages, providing real-time crop N nutrition data for management of N fertilizer topdressing in rice production and suggest that NDRE is suitable for analysis of paddy rice N nutrition.
Journal ArticleDOI
Genome-wide association of barley plant growth under drought stress using a nested association mapping population.
Anh-Tung Pham,Andreas Maurer,Klaus Pillen,Chris Brien,Chris Brien,Kate Dowling,Kate Dowling,Bettina Berger,Jason Eglinton,Timothy J. March +9 more
TL;DR: A quantitative trait loci (QTL) was identified on chromosome 4H where, under drought and control conditions, wild barley alleles increased biomass by 10 and 17% respectively compared to the Barke allele, providing a wider range of genetic diversity for the improvement of drought tolerance in barley.
Journal ArticleDOI
GWAS hints at pleiotropic roles for FLOWERING LOCUS T in flowering time and yield-related traits in canola
Harsh Raman,Rosy Raman,Yu Qiu,Avilash Singh Yadav,Sridevi Sureshkumar,Lauren Borg,Maheswaran Rohan,David A. Wheeler,Oliver Owen,Ian Menz,Sureshkumar Balasubramanian +10 more
TL;DR: These findings suggest that FT paralogs not only control flowering time but also modulate yield-related productivity traits in canola.
Journal ArticleDOI
Intercomparison of Unmanned Aerial Vehicle and Ground-Based Narrow Band Spectrometers Applied to Crop Trait Monitoring in Organic Potato Production.
Marston Héracles Domingues Franceschini,Harm Bartholomeus,Dirk van Apeldoorn,Juha Suomalainen,Lammert Kooistra +4 more
TL;DR: In this paper, ground-based and UAV spectrometers were compared in the context of organic potato cultivation, and the results indicated that optical sensors, and their integration, have great potential for monitoring this specific organic cropping system.
Journal ArticleDOI
Seed yield of canola (Brassica napus L.) is determined primarily by biomass in a high-yielding environment
Heping Zhang,Sam Flottmann +1 more
TL;DR: High yield in hybrid canola was attributed mainly to higher biomass from each phenological phase from the vegetative stage to maturity and not to improved harvest index, and there was no yield difference between the hybrid IT/CV, hybrid TT, and TT canola in the drought year (2010).
References
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Journal Article
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Journal ArticleDOI
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Journal ArticleDOI
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