Kan suksa laksana thang phanthukam khong khwam thonthan to kan khat boron.
1991
Sansani Chamchot | Suthat Julsrigival | Benjawan Rerdasem
Seven wheat lines and their F1 hybrids from a diallel cross were grown in sand culture from November 1990 to February 1991. Plants were watered twice daily with a complete nutrient solution supplying a low level of boron at 0.2 uM. Plant response was measured as the average number of grains set in the two basal florets (F1+2) of ten central spikelets of the wheat cars. Grain set in low boron was significantly different among parents and offspring. General combining ability (GCA) and specific combining ability (SCA) were highly significant (P<0.01). The GCA effects were the major factor that control this character. SCA effects were small and found to be positive in six crosses between susceptible x tolerant and tolerant x tolerant lines. This indicates that it may be possible to transfer the B deficiency tolerance character to susceptible line by a backcrossing program. The positive GCA effects of tolerance lines suggest that these lines can be useful in breeding for more tolerance in problem area.
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