You are here

water stress

Catalogue: GRDC Updates
The paper reports findings from field studies using radioactive tracers and desiccation treatments to estimate the relative contributions of plant components to grain yield in NSW... Tracer measurements at maturity showed that assimilates produced in all plant components after anthesis were equally present in the grain at maturity... The contribution of pre-anthesis stem reserves to grain yield was assessed by the reduction in WSC...
Related categories:
Catalogue: GRDC Updates (South)
The capacity of the plant to take up potassium is not directly related to potassium in solution... Spraying is best done when there is some wind, and when the operator can be sure that wind direction has stabilised... Driftability of amine formulations The 2,4- D products Surpass and Amicide 625 which were used in the trial are considered to be nonvolatile any drift that is associated with these products will be droplet drift not vapour drift...
Related categories:
Catalogue: GRDC Updates (North)
The capacity of the plant to take up potassium is not directly related to potassium in solution... Spraying is best done when there is some wind, and when the operator can be sure that wind direction has stabilised... Driftability of amine formulations The 2,4- D products Surpass and Amicide 625 which were used in the trial are considered to be nonvolatile any drift that is associated with these products will be droplet drift not vapour drift...
Related categories:
Catalogue: GRDC Updates (North)
GRDC values the contributions made by its research partners during the 2004 series of Grains Research Updates.. Overall, there were 50 comparisons, 45 showing a positive yield increase with fluid and 5 with no yield difference... Overall, there were 11 comparisons, with 4 yield decreases due to fluids and 7 with no yield differences...
Related categories:
Catalogue: GRDC Updates (South)
GRDC values the contributions made by its research partners during the 2004 series of Grains Research Updates.. Overall, there were 50 comparisons, 45 showing a positive yield increase with fluid and 5 with no yield difference... Overall, there were 11 comparisons, with 4 yield decreases due to fluids and 7 with no yield differences...
Related categories:
Catalogue: GRDC Updates (North)
Topic Welcome Breaking the yield barrier in grain sorghum Agronomy for success in high yield sorghum years on the Northern Downs.. The study presents output from the APSIM model to quantify the effects of the various strategies... I believe a key factor in the success of many of today's leading agricultural enterprises has been their ability to have their children acquire an education and experience that will equips them to make a meaningful contribution to the business...
Related categories:
Catalogue: GRDC Updates (South)
Topic Welcome Breaking the yield barrier in grain sorghum Agronomy for success in high yield sorghum years on the Northern Downs.. The study presents output from the APSIM model to quantify the effects of the various strategies... I believe a key factor in the success of many of today's leading agricultural enterprises has been their ability to have their children acquire an education and experience that will equips them to make a meaningful contribution to the business...
Related categories:
Catalogue: GRDC Final Reports
Validations on plot trials produced an R 2 of 0.97 between simulated and measured plant N (g N m -2 )... Fitzgerald et al. 2010 reported a correlation with an R 2 = 0.97 between predicted and measured total plant N (g N m -2 ) based on relating the CCCI to the Canopy Nitrogen Index (CNI) - an index that relates biomass to plant N. This relationship was validated with additional plot level data from Australia and Italy, resulting in an R 2 of 0.97 of predicted with measured plant N (g N m -2 ) and an RMSE of 0.2 g N m -2 as reported in Cammarano et al. 2011b... In the short term, there is a need for a workshop to fully identify the knowledge gaps, and develop a plan for research leading to new capabilities and deliverables to growers and consultants...
Related categories:
Catalogue: GRDC Updates
But I don't think it is that clear cut - most farmers in Australia would be pretty happy if they could achieve a 5t wheat crop, but if you belonged to the 10t club in Europe, and you only got enough rain for a 5t crop, you would claim you had suffered a pretty bad drought... The definition of drought is going to change dependent on your specific environment... By combining different parents of known good performance under drought, and then yield testing in the target environment we have been able to select varieties such as Gladius that perform exceptionally well under most drought conditions encountered by growers...
Related categories:
Catalogue: Ground Cover
Scientists share keys to drought tolerance Some of the world's leading crop researchers met in Adelaide recently to discuss breeding strategies for increasing plants' water-use efficiency By Gio Braidotti With global grain stocks at their lowest levels in decades and water stress accounting for a glaring proportion of global shortfalls, the 2007 Genomics Symposium in Adelaide allowed some of the world's best drought-tolerance pre-breeders to put their heads together on new ways to test, select and dissect traits that can maintain yields under drought... Overall, genomics is currently playing a more peripheral role in the work of conventional pre-breeders, with scientists attempting to dissect the genetic basis of drought tolerance and map traits to discrete chromosomal subregions (called QTLs or quantitative trait loci)... The number of GM field-trials is on the rise...
Related categories:

Pages