ENGINEERING AND BIOLOGICAL PROPERTIES OF FABA BEAN SEEDS UNDER DIFFERENT IRRIGATION SYSTEMS | ||||
| Journal of Plant Production | ||||
| Article 6, Volume 28, Issue 6, June 2003, Page 4325-4337 PDF (1.6 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2003.244639 | ||||
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| Authors | ||||
| A. M. EI-Gindy,1; A. A. Abdel - Aziz1; E. A. EI-Sabar1; A. M. Abdelghany2 | ||||
| 1Dept. of Agronomy, Fac. of Agrie, • Aln Shams Unlv. , Cairo· Egypt. | ||||
| 2Dept. of Agrle. Eng, Fac. of Agric. , Aln Shams Unlv. , Cairo - Egypt | ||||
| Abstract | ||||
| Seeds of faba bean (Giza 461) were submitted from Gene Bank. Agricultural Research Center. Giza and used in this investigation. Faba bean was cultivated unde j djffer~nt irrigation systems (subsurface dr.p. surface drip, center pivot. solid se sprinkler and modified surface Irrigation by using gated pipes). Four levels of water amounts were applied to the plants at recommended irrigation intervals of Ihe differen irrigation systems used In this investigation. These four amounts were 50. 75. 100 an 125% of the calculated water consumption USe (ETc). All plots were harveste manually and the harvested plan Is were subjected to air drying. then. faba bean pod and seeds were separaled manually. From results Obtained the seed volume WQ significantly affected by irrigation system. water requirement and their interaction whereas. seed volume increased as water requirements increased. Seed volum increased gradually from 647 to 790 mmJ as water requirements increased from 50% to 125% of ETc. Subsurface drip irrigation system gave the greatest geometry diamete{ of 9.3 mrn. Only water requirement and its interaction with Imgalion system showed significant effects on seed sphericity percentage. Values of hecto/itre weight varied as affected by Irrigation system since modified surface irrigation system gave Ihe grealest value recorded (722 gIL). Higher seed moisture content of seeds were produced unde sprinkler and pivot Irrigation systems (16.4 and 16.0%) . these high moisture content was due to the high I'Iumidity over It\e plant canopy during the irrigalion process. Weight of 1 00 seeds increased significantly by Increasing amounts of Irrigation water up to 100 % of ETc (60.4 g). Irrigation system had s!gniflcant effect on Ihe angle ot repose. Seed friction coefficient decreased from 0.379 to 0.363 by increasing water requirement from 50% to 125% of ETc. Irrigation system had significant effect on seed germination .. lJ1e greatest germination percentage was 94.7% for seeds produced under modified surface Irrigation system. while the smallest genninatfon percentage was 89.3% under pivot system. On the other hand. the lowest percentage of vigor was 75.2% under subsurface drip irrigation. while the highest percentage was 82.3% when using pivot irrigation system. | ||||
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