Study and Use of Genetic Parameters in Agricultural Crops
Main researcher
: KOZUMPLIK, VINKO (23053) Assistants
GRBEŠA, DARKO (6111)
BARIĆ, MARIJANA (109703)
PEJIĆ, IVAN (154216)
HENEBERG, RUŽICA (72103)
VASILJ, ĐURĐICA (57106)
ŽANIĆ, DRAGICA (8734)
MARTINIĆ-JERČIĆ, ZDRAVKO (57525)
PAVLINA-ŠUTINA, RENATA (74221)
RADOŠEVIĆ, JASNA (190051)
KOLAK, IVAN (61283)
BOLARIĆ, SNJEŽANA (900640)
Type of research: applied Duration from: 01/01/91. to 12/31/95. Papers on project (total): 102
Institution name: Agronomski fakultet, Zagreb (178) Department/Institute: DEPARTMENT FOR PLANT BREEDING,GENETICS AND BIOMETRICS Address: Svetošimunska cesta 25. City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 2335777
Fax: 385 (0)1 215300
E-mail: vkozum*magr.agr.hr
Summary: Research work carried out within the research project
"Study and Use of Genetic Parameters in Agricultural Crops" has been
done on maize, wheat and the large seed Fabaceae sp. Maize: Cattle
feeding is generally based on maize silage. For this purpose commercial
maize hybrids for kernel production, are used. Such silage is often
lacking digestable stover. Milking cows taking such silage get
physiological disordes. Thus, for feeding milking cows, sheep and goats,
maize hybrids with high whole plant dry matter and high digestability of
ungrained plant parts are needed. Twelve inbred lines and their 24
crosses were analysed for variability in dry matter yield of the whole
plant and the grained-ungrained part, as well as for variability in
content of moisture, ash, crude proteins, crude fats, crude fibres and
NFE, with the aim to determine the germplasm for maize hybrids with high
yield and digestibility of the ungrained part. The results have shown
high variability between hybrids in dry matter yield of the whole
plant, the ungrained part, crude fibres and NFE. Similar variability was
recorded for inbred lines, too. The crude protein content and crude
fat content have shown lower variability. Sixteen hybrids (4x4 geneticaly
divergent lines) and their eight parental lines were studied in the field
experiments and analysed in the lab during the 1993-95 period of time. In
most cases additive part of the genotypic variance (GCA) was larger than
the dominant part (SCA). Different lines have shown to be good germplasm
for different traits importante for the silage quality. Through
recombination of these lines a source breeding population for silage
hybrids might be developed. Wheat: The vernalization stage was studied
for 106 wheat genotypes in 1991, and for 22 genotypes in 1992 In 1993 M.
Sc. thesis "Methods for determining vernalization requirments of wheat
genotypes (Tr. aestivum L.) suitable in plant breeding" was writen and
defended. In order to study genetic parameters of wheat yield components
diallel crosses were done with six winter wheat genotypes. Seed of F2,
B1 and B2 was obtained too. In 1992 the F1 generation was compared with
its parents in a three replication experiment, and in 1993 the P1, P2,
F1, F2, B1 and B2 were studied also in a three replication experiment.
Breeding work using conventional breeding methods has been continued. A
considerable number of breeding lines has been developed, as good as, or
better than the best standards. The lines have shown better resistance to
most prevalent disease and a better baking quality. In 1995 two cultivars
of winter wheat have been released (Kuna and Magdalen), and three lines
are still in the experiment for releasing. Fabaceae: During the five
year period (1991-1995) of permanent breeding program qualitative and
quantitative characters of cca 300 cross progenies (F1-F7) of soybean,
cca 100 of lupin and cca 100 of pea were evaluated every year. The most
promissing selected lines (25 of soybean, 17 of lupin and 15 of pea)
were tested in comparative field trials. Two cultivars of soybean
(Hrvatica and Buga), two of lupin (Maksimirka and Zrinka) and one of pea
(Šampion) have been released. Breeding work to develope new breeding
lines have been continued. More attention has been paid to the stability
parameters of domestic cultivars and foreign soybean introductions. In
1995 a new soybean cultivar (Ružica) has been released.
Research goals: Maize: Research goals have been (1) to study the
variabilityof yield and energy components of kernels and other plant
partsof maize hybrids and inbred lines, (2) to determine inbred
linesgeneticly divergent in feeding value of kernels and other plantparts,
and (3) to study inheritance of the feeding valuecomponents of the latter
inbred lines. In this way knowledgeabout genetic variability of the
feeding value and abuotinheritance of the feeding value components of the
studied maizeinbred lines will be obtained. This will enable selection
ofmaize inbred lines among the existing ones, for developingbreeding
populations by hybridization, which will be source ofnew inbred lines for
silage maize hybrids. Wheat: Determining the vernalization stage by
different datesof planting in spring in our growing condition, was
notstandardized and, results of different authors could not becompared. On
the basis of the research results and a M. Sc.thesis, an optimal spring
date of planting has bean recommendedfor northwestern Croatia. The data
should be suitable fordetermining the optimal vernalization stage of
winter wheatcultivars grown under our growing conditions. On the basis
ofrecorded data on a half diallel cross of six genotypes, and onthe P1,
P2, F1, F2, B1 and B2 population, studying GCA,SCA, heritability in broad
and narrow sense, and other geneticparameters for plant hight, spike
length, number of spikelets perspike, number of tillers, number of kernels
and kernel yield per spike, per main tiller and per plant, is being done.
Fabaceae: Creation of early, stable, high yielding andof good quality
cultivars of grain legumes. Solution oftheoretical and practical problems
in breeding of grain legumestrough scientific and technical publications
including graduate, postgraduate and doctoral thesis.
COOPERATION - PROJECTS
Name of project
: JF-010-31 Study and Use of Molecular Markers in
Plant Breeding Name of institution: USDA, Agricultural Research Service, NC State
University, Raleigh, North Carolina City: 7614 - Raleigh, USA
Name of project
: 1-08-119 Razvoj i unapređenje genetske osnove
kukuruza Name of institution: Institut za oplemenjivanje i proizvodnju bilja,
Zagreb City: 10000 - Zagreb, Croatia
COOPERATION - INSTITUTIONS
Name of institution
: Institut za oplemenjivanje i proizvodnju
bilja Zagreb Type of institution: Institution whose primary activities ar Type of cooperation: Joint project City: 10000 - Zagreb, Croatia
Name of institution
: Facolta di Agraria, Universita di Udine,
Italia Type of institution: University/Faculty Type of cooperation: Joint publishing of scientific papers City: 33100 - Udine, Italy
Name of institution
: North Carolina State University - USDA Type of institution: University/Faculty Type of cooperation: Joint project City: 7614 - Raleigh, USA
OTHER ACHIEVEMENTS
Name
: Priznati i registrirani novi kultivari poljoprivrednog
bilja Type of achievement: Other Authors: R. Henneberg, Z. Martinić-Jerčić, V. Kozumplik, I. Kolak,
S. Milas, J. Radošević, M. Barić Other information about the project.