Phon khong punkhao lae pui phosphate themi to kan charoen toepto khong klamai Eucalyptus calmaldulensis thi pluk nai din chut nam phong.
1988
Suchila Teeraporn
Grain yield panicle length, leaf disease and threshing percentage of S2- lines were not significantly different from F5- lines. S2- lines showed higher 1,000- seed weight, plant height and lodging percentage than F5- lines. But F5-lines showed greater number of days to flower, seeds per panicle and panicle weight than S2- lines. Both S2- lines and F5- lines gave higher grain yield, number of days to flower, panicle length, head exertion, seeds per panicle, 1,000-seed weight and panicle weight than their parents. New improved population showed greater grain yield, plant height, panicle length and panicle width than the original KU. population 1, KU. population 5 and their parents. Average panicle length, seeds per panicle, 1,000- seed weight of new improved population were higher than their parents but not significantly different from the original population. Maturity of new improved population was earlier with a better yield and better head exertion than S2- lines. The new improved population and S2- lines gave somewhat the same performance for the following characteristics : plant height, panicle length, weeds per panicle, 1,000- seed weight, leaf diseases, lodging percentage and threshing percentage.
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