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"Rapid and High Throughput Hydroponics Phenotyping Method for Evaluatin" by Muhammad A. Asif, Sean L. Bithell et al.

Phytophthora root rot (PRR) is a major constraint to chickpea production in Australia. Management options for controlling the disease are limited to crop rotation and avoiding high risk paddocks for planting. Current Australian cultivars have partial PRR resistance, and new sources of resistance are needed to breed cultivars with improved resistance. Field- and glasshouse-based PRR resistance phenotyping methods are labour intensive, time consuming, and provide seasonally variable results; hence, these methods limit breeding programs’ abilities to screen large numbers of genotypes. In this study, we developed a new space saving (400 plants/m2), rapid (<12 >days), and simplified hydroponics-based PRR phenotyping method, which eliminated seedling transplant requirements following germination and preparation of zoospore inoculum. The method also provided post-phenotyping propagation all the way through to seed production for selected high-resistance lines. A test of 11 diverse chi ....

High Throughput , Ydroponics Screening Method , Phytophthora Root Rot , Plant Breeding , Uantitative Resistance Phenotyping , Oot Disease Resistance Breeding ,

As climate warms, that perfect Christmas tree may depend on growers' ability to adapt

Christmas tree breeder Jim Rockis knows what it looks like when one dies long before it can reach a buyer. Christmas tree growers and breeders have long prepared for a future of hotter weather that will change soil conditions, too. People buying trees may not have noticed a difference in availability this year and may not even in the next couple; the average Christmas tree takes eight to 10 years to reach marketable size. ....

United States , Washington State University , West Virginia , Bert Cregg , Almudena Garcia , Gary Chastagner , Melissa Widhalm , Jim Rockis , Michigan State University , Helmholtz Center , Associated Press , Purdue University Midwestern Regional Climate Center , Environmental Research , Nature Climate Change , Michigan State , Purdue University , Midwestern Regional Climate , North America , Melina Walling , Christmas Tree , Climate Change , Jim Rockis , Soil Temperature , Soil Conditions , Gary Chastagner , Nature Climate Change ,