No abstract

No abstract

A field trial was carried out in the experimental farm of Gemmeiza Agricultural Research Station (Middle Nile Delta) during two successive 2007/2008 and 2008/2009 growing seasons. The objective of such trials is to find out the extent to which irrigation scheme( Farmer and bed-furrow irrigation schemes) and Pfertilization rate( 15, 30 and 45 kg P2O5/fed.) influenced growth, yield, yield quality, Puse efficiency and water productivity for berseem clover var. Gemmeiza1.The treatments were arranged in splitplot experimental design with three replicates. The most important findings could be as follows:-1-Plant height values, at the different cuttings and total, in the two seasons of study, significantly reduced under bed-furrow irrigation, as compared with the farmer one.In general, leaves number/stem averages were higher, up to the third cutting in 1 st season and up to second cutting in 2 nd season, under bed-furrow irrigation, more than the farmer irrigation practice. N o of leaves/stem criterion tended to increase with bed -furrow irrigation practice. Plant height and N o of leaves/stem traits tended to increase as P-rate increased. 2-Fresh and dry berseem clover yields( at different cuttings and total) seemed to increase due to farmer irrigation scheme as compared with bed -furrow irrigation one, in both seasons of study. In addition, increasing P-rate resulted in increased values of both total fresh and dry berseem clover yields. 3-leaves/stem ratio(L/S) under bed-furrow irrigation scheme surpassed that under the farmer irrigation one, on dry weight basis. Data also revealed that increasing Prate tended to improve L/S ratio either on fresh or dry weight basis. Crude protein and crud fiber yields tended to reduce under bed-furrow irrigation ,while increasing P-rate resulted in higher crude protein and crud fiber yields. 4-The seasonal applied water under bed-furrow irrigation scheme were reduced by 19.78 and 21.14%, in 1 st and 2 nd seasons, comparable with farmer one, respectively. Moreover, bed-furrow irrigation scheme resulted in higher water productivity values on total fresh and dry berseem clover yields basis. The calculated P-Use Efficiency values were reduced under bed-furrow irrigation as compared with the farmer irrigation one. Such reduction is mainly attributed to the reduction in total fresh and dry yields under the former irrigation practice. Increasing P rate tended to enhance water productivity for berseem clover on total fresh and dry yields basis.

Five local varieties of Sudan grass i.e; Giza 1, Giza 2, Giza 3, Piper and quena Sudan grass as well as two imported varieties i.e., Is22313 and Is 3310 were evaluated for downy mildew resistance, growth parameter, nutritive value and forage yield in disease nursery at Gemmeiza Agricultural Research Station, A.R.C., Egypt during 1999 and 2000 summer seasons.Results of the combined data over the two seasons demonstrated that disease incidence increased by increasing the cutting numbers. On contrast, growth characteristics i.e.; plant height and stem diameter beside crude protein (CP), crude fiber (CF) and Ash% as well as forage yield were decreased by increasing the cutting numbers.The selected varieties Is 22313 and quena proved to be highly resistant to disease while Giza2 variety was resistant and can be used as parents for production of resistant hybrids. In addition to the above mentioned varieties contained high level of CP, CF and Ash%, beside fresh and dry forage yield, compared with Giza 3 and Is 3310 which show highly susceptible varieties contained the lowest level of CP, CF and Ash%, beside fresh and dry forage yield.