Gururaj Kadkol

• M.Sc. (Genetics), Ph.D.
• Consultant at GKGENETICS

Background and Objectives Durum wheat breeding commenced in Australia in the 1930s by the New South Wales Department of Primary Industries (NSW DPI), Australia. Dural was developed in 1956 from a cross between North African landraces. Since then, another 20 varieties have been released in the following six decades by NSW DPI and the University of A...

Tolerance to the cereal disease Fusarium crown rot (FCR) was investigated in a set of 34 durum wheat genotypes, with Suntop, (bread wheat) and EGA Bellaroi (durum) as tolerant and intolerant controls, in a series of replicated field trials over four years with inoculated (FCR-i) and non-inoculated (FCR-n) plots of the genotypes. The genotypes inclu...

Plant breeding programs use multi-environment trial (MET) data to select superior lines, with the ultimate aim of increasing genetic gain. Selection accuracy can be improved with the use of advanced statistical analysis methods that employ informative models for genotype by environment interaction, include information on genetic relatedness and app...

supplementary data to https://doi.org/10.20900/cbgg20200018

A set of durum wheat genotypes from New South Wales (NSW, Durum Breeding Australia (DBA) Northern Program), South Australia (SA, DBA Southern Program and Australian Grain Technology), ICARDA and CIMMYT (International Centre for Research in Dryland Agriculture and International Centre for Maize and Wheat Improvement) was evaluated over 3 years (2012...

Tolerance to the cereal disease Fusarium crown rot (FCR) was investigated in a set of 34 durum wheat genotypes, with Suntop, (bread wheat) and EGA Bellaroi (durum) as tolerant and intolerant checks, in a series of replicated field trials over four years with inoculated (FCR-i) and non-inoculated (FCR-n) plots of the genotypes. The genotypes include...

Background and objectives Durum breeders are interested in screening early generation lines for quality traits to eliminate low quality lines as soon as possible. However, this requires minimal sample usage, simple and discriminating tests. Due to insufficient quantities of sample available in the early stages of breeding process, a reliable and co...

The main focus of a durum breeding program is to create high yielding, adapted durum wheat varieties that meet grain quality standards. Using modern statistical approaches we show how comprehensive data sets can be used to readily identify high performing and stable genotypes. A subset of 12 durum wheat genotypes were selected from breeding trials...

Durum wheat is of significance as a food crop being used to make pasta, couscous, burghul, puddings, bread (flat and leavened), and other traditional foods. The main durum producers are the EU, North America (including Mexico), Middle East, North Africa, the former Soviet Union, and India. Durum is widely adapted and it is mostly grown in semiarid...

Durum wheat is of significance as a food crop being used to make pasta, couscous, burghul, puddings, bread (flat and leavened), and other traditional foods. The main durum producers are the EU, North America (including Mexico), Middle East, North Africa, the former Soviet Union, and India. Durum is widely adapted and it is mostly grown in semiarid...

Predictions about milling, dough making, and baking properties can be made by measuring properties of the wheat grain with different small- and medium-scale equipment. In this study, rheological hardness index (RHI) was shown to separate hexaploid wheats and durums into clearly distinct hardness classes. Earlier work demonstrated the utility of RHI...

Resistance to pod shattering (shatter resistance) is a target trait for global rapeseed (canola, Brassica napus L.), improvement programs to minimise grain loss in the mature standing crop, and during windrowing and mechanical harvest. We describe the genetic basis of natural variation for shatter resistance in B. napus and show that several quanti...

The inheritance of siliqua strength was studied in Brassica campestris L. using F1, F2, and backcross generations of crosses between cv. Torch (shatter susceptible) and var. Yellow Sarson and var. Brown Sarson (shatter resistant) accessions. Shatter resistance (high siliqua strength) was recessive in all crosses. Crosses involving DS-17-D (var. Bro...

Quantitative genetic analysis of siliqua strength in Brassica campestris L. was conducted in the cross cv. Torch × DS-17-D using the North Carolina experiment II design. This revealed the presence of a high degree of nonadditive genetic variance and a high heritability (broad sense) for all measures of siliqua strength. These results are in accorda...

Shattering of siliquae causes significant seed loss in canola (Brassica napus) production worldwide. There is little genetic variation for resistance to shatter in canola and, hence, the trait has been studied in B. rapa. Previous studies have shown two randomly segregating recessive genes to be responsible for shatter resistance. Three random ampl...

ABSTRACTA small impact pendulum was developed to measure the shatter resistance of seed pods. While clamped by their stems, the pods are hit by the rigid pendulum; the rupture energy is derived from the measured angles of swing. The consistency of the pendulum was confirmed by tests on a sample of fine spring wire. The pendulum was then used in a s...

In the supernumerary spikelet wheat, AUS159I0, the supernumerary spikelet primordia appeared just after the ear reached the terminal spikelet stage. Appearance of the primordia of the multiple sessile spikelets preceded that of indeterminate rachilla spikelets. Supernumerary spikelets had a lower number of potentially fertile florets per spikelet t...

Anatomical features of the siliqua valve and suture were studied in 13 Brassica accessions representing B. napus, B. campestris and B. juncea in order to investigate the basis of shatter-resistance and the mechanism of shattering (dehiscence). The high level of shatter-resistance of certain accessions of B. campestris var. Yellow Sarson and var. Br...

Within-plant variation in strength of the siliquae, studied in seven Brassica accessions, appears to be mostly associated with variation in size, rather than the position of the siliquae in the infructescence. Position and strength did not show correlated variation in three accessions where the position of the siliqua in the infructescence appeared...

A new test procedure for measuring shatter-resistance of siliquae of Brassica spp. is described. A siliqua with its proximal end clamped is loaded as a cantilever in a testing machine. The maximum bending moment, the corresponding stiffness and the energy to cause the siliqua to rupture were taken as measures of the resistance of the siliqua to sha...

An overview of research into shattering and shatter resistance is presented in the context of recent advances in molecular genetics of the trait in Arabidopsis. Several methods of testing for shatter resistance have been devised, but procedures that directly measure intrinsic pod strength of the variety, such as the pendulum test appear to be more...

This paper reports the variation in blackleg resistance and manganese tolerance in the two progenitor species of B. napus. Twenty five lines of B. oleracea and eight lines of B. rapa were tested in field trials for resistance to blackleg. B. oleracea lines showed high levels of survival (30-80%) compared to B. rapa (with the exception of MexicoJ, 6...