A theoretical study of the bulk breeding method

Euphytica ◽  
1992 ◽  
Vol 60 (3) ◽  
pp. 185-195 ◽  
Author(s):  
J. Kervella ◽  
G. Fouilloux
2020 ◽  
Vol 100 (1) ◽  
pp. 129-135
Author(s):  
D. Spaner ◽  
M. Iqbal ◽  
A. Navabi ◽  
K. Strenzke ◽  
B. Beres

Jake hard red spring wheat (Triticum aestivum L.) was developed using a modified bulk breeding method at the University of Alberta, Edmonton, AB. Jake is an awned, hollow-stemmed line with high yield potential, medium tall plants, and medium maturity. During the three years (2015–2017) of evaluation in the Parkland Wheat Cooperative test, Jake yielded 6% higher than the mean of all of the checks, and matured 0.7 and 1.7 d later than Parata and Splendor but 2.9 d earlier than Glenn. Jake was 91.2 cm tall, shorter than AC Splendor (95.8 cm), but similar in height to Glenn (91.8 cm) and Parata (92 cm). The lodging score of Jake (2.2) was lower than Parata (3.1) and AC Splendor (3.1), but similar to Glenn. The test weight of Jake (80.8) was higher than AC Splendor (78.3), similar to Parata (80.5), but lower than Glenn (82.5). The grain weight of Jake (35.6 g) was similar to Parata (35.6 g), but lower than Glenn (36.7 g) and AC Splendor (37.4 g), while the NIR Protein of Jake (15.9%) was higher than Glenn (15.5%) and similar to the other checks. Jake was moderately resistant to resistant to leaf, stem, and stripe rusts, and moderately resistant to common bunt during the 3 yr of testing. The reaction of Jake to Fusarium head blight was variable and ranged from moderately susceptible to moderately resistant, with DON values similar to Carberry and Glenn. Three years of end-use quality evaluation has indicated that Jake is acceptable for the CWRS class.


Genetika ◽  
2011 ◽  
Vol 43 (2) ◽  
pp. 209-216 ◽  
Author(s):  
Bogoljub Zecevic ◽  
Radisa Djordjevic ◽  
Ahmet Balkaya ◽  
Jelena Damnjanovic ◽  
Mladen Djordjevic ◽  
...  

The aim of this research was to determine genetic values for the fruit width and fruit length in F1 and F2 generation of diallely crossed pepper genotypes, and to evaluate the effects of applying the pedigree and bulk breeding method for producing F3 hybrid populations. Hybrid populations were formed by crossing divergent genotypes belonging to different varieties of species Capsicum annuum L. The research of parental lines lasted for three years, experiments with F1 generation two years, while the analysis of results for F3 hybrid population has been done regarding the data from one year experiment. The heterosis effect in F1 generation for all researched traits and in all crossing combinations was very low. Genetic analysis of F2 generation showed that all researched traits were inherited with partial domination. In F3 generation, hybrid populations formed by using the pedigree method of selection had traits which are more valuable for further breeding than the hybrid population formed by using modified bulk method.


Author(s):  
Muhammad Iqbal ◽  
Dean Spaner ◽  
Klaus Strenzke ◽  
Izabela Ciechanowska ◽  
Brian L Beres

Noor hard red spring wheat (Triticum aestivum L.) was developed using a modified bulk breeding method at the University of Alberta, Edmonton, Canada. Noor is an apically awnletted, hollow-stemmed line with a combination of high yield potential, good lodging tolerance, and medium maturity. During the three years (2016-18) of evaluation in the Parkland Wheat Cooperative test, Noor yielded 12% higher than the mean of all checks, and matured similarly to Carberry and Glenn but 3.1 and 2.6 days later than AC Splendor and Parata, respectively. Noor was 94.9 cm tall, shorter than AC Splendor (98.4cm), similar in height to Glenn (94.0cm) and Parata (93.5cm) but taller than Carberry (86.0 cm). The lodging score of Noor (2.1) was lower than Parata (3.0) and AC Splendor (3.0) but similar to Carberry (2.3) and Glenn (2.1). The test weight (kg hL-1) of Noor (80.0) was higher than AC Splendor (78.6), similar to Carberry (80.2) and Parata (80.4) but lower than Glenn (82.2). Grain weight (35 g) and NIR Protein of Noor (14.1%) was lower than all checks. Overall, Noor was rated resistant (R) to the prevalent races of leaf, stem and stripe rusts during the three years of testing. Noor was rated Intermediate (I) to common bunt and Fusarium head blight. Three years of end-use quality evaluation indicated that Noor is acceptable for the Canada Western Red Spring class, with fewer flags.


1987 ◽  
Vol 84 ◽  
pp. 799-803 ◽  
Author(s):  
Vincenzo Barone ◽  
Francesco Lelj ◽  
Nino Russo ◽  
Marirosa Toscano
Keyword(s):  

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