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GrainGenes Reference Report: AAR-55-961

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Reference	AAR-55-961
Title	Plant density affects the reliability of using F SUB 1 and F SUB 2 yield to predict F SUB 3 yield in barley
Journal	Australian Journal of Agricultural Research
Year	2004
Volume	55
Pages	961-965
Author	Kotzamanidis ST Roupakias DG
Abstract	Prediction of F SUB 3 population yield on the basis of the parental lines, the F SUB 1 , and the F SUB 2 generation yield at low and high plant density was studied in barley ( Hordeum vulgare L.). Six F SUB 1 crosses together with the 7 parental cultivars were evaluated under high plant density with adjacent check plots and under low plant density in a honeycomb design. In the following year, the 6 F SUB 2 populations together with the 7 parental lines were also evaluated at high plant density with adjacent check plots. In addition, the 6 F SUB 2 s together with a check (cv. Athinaida) were evaluated at low plant density in a honeycomb design. During the third year, the 6 unselected F SUB 3 populations together with cv. Athinaida were evaluated under commercial cropping conditions in a randomized complete block design with 4 replications at 2 locations. It was found that yield performance of the F SUB 3 population could not be predicted by the mid-parental value (MPV). Similarly, the F SUB 3 population yield was not effectively predicted from the yield of the F SUB 1 , F SUB 2 , or F SUB 1 +F SUB 2 generations when they were evaluated under high plant density. In contrast, the F SUB 3 population yield was predicted effectively from the yield of the F SUB 1 , F SUB 2 , or F SUB 1 +F SUB 2 generations when they were evaluated at low plant density. The best results were obtained when the mean yield of the F SUB 1 and F SUB 2 generations was taken into consideration. It was concluded that low plant density increases the reliability of using F SUB 1 and F SUB 2 yield per plant in predicting the yield of the F SUB 3 populations in barley under crop environment
Keyword	agricultural research [ Show all 8 ]

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