تأثير البوليمرات المحسنة للتربة على انبات ونمو حبوب القمح النامية تحت ظروف الجفاف  Effect of Polymeric Soil Conditioners on Germination and Growth of Wheat Grains under Drought Conditions

doi:10.21608/auber.2014.148448

تأثير البوليمرات المحسنة للتربة على انبات ونمو حبوب القمح النامية تحت ظروف الجفاف Effect of Polymeric Soil Conditioners on Germination and Growth of Wheat Grains under Drought Conditions

Document Type : Original Article

10.21608/auber.2014.148448

Abstract

الملخص:
أجريت هذه الدراسة على نبات القمح Triticum aestivum حيث نميت بعض البادرات فى تربة فقط وهذه استخدمت کشاهد, أما فى حالة البادرات النامية فى تربة محسنة بالبوليمرات فقد کانت نسبة البوليمر للتربة50:50% و 25:75%على التوالى.عرضت البادرات النامية لدورتين من الجفاف و ترکت لتنمو. سجل الطول الکلى للنبات ثم أطوال کل من المجموعى الخضري والجذرى کما قدر الوزن الرطب,الجاف, النسبة المئوية للمحتوي المائى و اليخضور. أوضحت نتائج هذه الدراسة أن للبوليمرات دوراً هاماً فى تحفيز نمو بادرات القمح النامية فى ظروف جفافية, بالإضافة الى المحافظة على رطوبة التربة. أظهرت النتائج المتحصل عليها أن اضافة البوليمرات للتربة يحسن من خصائص التربة ونمو النبات .
This study carried out on wheat plant Triticum aestivum.Some wheat feeling were germinated in soil (control) while other feeling germinated in improved soil and polymer with percentage 50 :50 and 25 :75 respectively. Growing seedling were exposed to two drought cycles then left to grow. Total plant length and length of shoot and root were recorded. Dry weight, fresh weight, relative water content and total chlorophyll were estimated. the result of this study referred that, water hydro gels had played an important role to improve wheat seedling growth under drought conditions. In addition, maintained soil moisture. The results of this study indicate that application of polyacrylamide improved the physical properties of dry soil and enhanced plant growth.

References

REFERENCES:

Al-Kaisi, et.al., 2009

Al-Kaisi MM and Broner I (2009): Crop water Use and Growth Stages. Colorado State University,U.S. Department OfAgriculture and Colorado counties cooperating. 4: 715.

Baker SW (1991): The effect of polyacrylamide copolymer on the performance of Lolium perenne L. turf grown in a sand rootzone. Journal of Sports Turf Research Institute 67: 66-82.

ELgubbi H , ELgubbi, A (2012): the use of polyacrylamide as growth media in germination of cucumber seeds and barley. Ass. Univ. Bull. Environ. Res. Vol. 15.

Flannery RL, Busscher WJ (1982): Use of a synthetic polymer in potting soils to improve water holding capacity. Communications in Soil Science and Plant Analysis 67: 66-82.

Hedrick RM, Mowry DT (1952): Effect of synthetic polyelectrolytes on aggregation, aeration and water relationships of soil. Communications in

Soil Science and Plant Analysis 73: 427 – 441.

Huttermann A, Zommorodi M, Reise K (1987): Addition of hydrogels to soil for prolonging the survival of Pinus halepensis seedlings subjected to drought. Soil & tillage research. 50: 3-4

Jhurry D (1997): Agricultural Polymers AMAS Food and Agricultural Research Council, Réduit, Mauritius. 109-113.

Johnson MS (1984) The Effects of Gel-forming Polyacrylamides on Moisture Storage in Sandy Soils. Science food Agriculture 35: 1063-1066

Lichtenthaler K (1983): Determinations of total carotenoids and chlorophylls a and chloropyll B in leaf extractions in different solvents.Biochemical Society Transactions. 591-592.

Michael B, Corbineau F, Gee H, Come D (1999): Water Content, Raffinose, and Dehydrins in the Induction of Desiccation Tolerance in Immature Wheat Embryos. Plant Physiol. 120: 463-472.