TY - JOUR
T1 - The genetic control of mildly restricted branching in narrow-leafed lupin (Lupinus angustifolius L.)
AU - Adhikari, Kedar
AU - Galwey, N.W.
AU - Dracup, M.
PY - 2002
Y1 - 2002
N2 - The indeterminate growth habit of most cultivars of narrow-leafed lupin (Lupinus angustifolius) results in undue competition between pod growth and branch growth, and sometimes poor partitioning of dry mass to grain. Selection of restricted-branching genotypes has been proposed as a method to overcome this problem. The restricted branching (RB) trait occurs in two forms, mild and severe. This paper reports the pattern of genetic control of mild RB derived from a number of independent sources. The trait, as indicated by the number of leaves on the uppermost branch, was found to be quantitative (quasi-continuous), but highly heritable, and largely controlled by additive genetic effects. There was no consistent correlation of this trait with the number of leaf nodes on the main stem or the time to flowering. It should therefore be possible to obtain different combinations of branching pattern and maturity date through plant breeding, and to assess their adaptation to a range of environments.
AB - The indeterminate growth habit of most cultivars of narrow-leafed lupin (Lupinus angustifolius) results in undue competition between pod growth and branch growth, and sometimes poor partitioning of dry mass to grain. Selection of restricted-branching genotypes has been proposed as a method to overcome this problem. The restricted branching (RB) trait occurs in two forms, mild and severe. This paper reports the pattern of genetic control of mild RB derived from a number of independent sources. The trait, as indicated by the number of leaves on the uppermost branch, was found to be quantitative (quasi-continuous), but highly heritable, and largely controlled by additive genetic effects. There was no consistent correlation of this trait with the number of leaf nodes on the main stem or the time to flowering. It should therefore be possible to obtain different combinations of branching pattern and maturity date through plant breeding, and to assess their adaptation to a range of environments.
U2 - 10.1023/A:1014420902282
DO - 10.1023/A:1014420902282
M3 - Article
VL - 123
SP - 101
EP - 109
JO - Euphytica: international journal on plant breeding
JF - Euphytica: international journal on plant breeding
SN - 0014-2336
ER -