Showing papers on "Plant breeding published in 1978"

Pinus patula Schiede and Deppe progeny tests in Rhodesia. Genetic control of nursery traits.

Abstract: and we can See immediately p a r a t H has a general mmbining ability of 13419 = 14.89. If the problem were so~lved by the least square method and by hand calculation, it would be much more laborious. Another advantage of using this method is the ease of comparimn. Just by ohserving the 9th raw of Table 2, olne can See immeaiately that male parent H is inferior only to male parent I but is superior to all others. By colnventional procedure, comparison cannot be made until all parent effects are calculated. This procedure gives an approximate solution for irregular mating schemes. The better the regularity, the better is the approximation. If the procedure is applied to balanced data, results from this procedure are identical to the least square estbates. Usually the discrepancies are too small to be signif icant.