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Information Journal Paper

Title

EFFECTS OF WATER POTENTIAL AND TYPE OF GSMOTICUM ON SEED GERMINATION OF THREE CROP SPECIES OF WHEAT, SUGARBEET, AND CHIKPEA

Pages

  121-133

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Abstract

 Crop seed germination and seedling growth are exposed to drought and salinity in some areas specially in arid and semi-arid regions and combined effect of these stresses on germination and emergence is of considerable interest. A growth chamber study was conducted to investigate seed germination of wheat (Triticum aestivum), sugar beet (Beta vulgaris) and chickpea (Cicer arietinum) in reduced water potential (distilled water as control, 0.32, 0.56, and 0.80 MPa). Negative potentials were simulated by using concentrated macronutrient solution (NPK), NaCl, CaCl2 and polyethylene glycol (PEG-6000). Treatments were arranged in a completely randomized design using a 4×4×3 factorial experiment with four replications [4 levels of water potential, three species, and four types of osmoticum]. In each treatment 50 seeds were planted in a 11 cm diameter petri dish. Parameters examined in germinating seeds were rate of imbibition per day, rate and duration of emergence and elongation and weight of radicle and plumule. For all three species duration and rate of germination increased with increasing negative water potenital, but the sensitivity of species were quite different, wheat seeds were emerged fastest at all water potentials and osmoticums, followed by chickpea and then sugar beet. Although sugar beet is a salt resistant crop’its seed germination and dry matter build up in radicle and plumule reduced more than other two crops by water potential. Different osmoticums in the same water potential showed significant differences in rate and duration of germination as well as radicle and plumule length and weight particularly in sugar beet and chickpea. At all three species concentrated macro nutrient NPK showed better performance than others and PEG-6000 had the most inhibitory effect on seed germination. Differences between NaCl and CaCl2 generally became less pronounced. These results suggest that PEG-6000 may exert specific effect and concentrated NPK could be a suitable alternative for PEG.

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References

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APA: Copy

KAFI FALAVARJANI, M., & GOLDANI, M.. (2001). EFFECTS OF WATER POTENTIAL AND TYPE OF GSMOTICUM ON SEED GERMINATION OF THREE CROP SPECIES OF WHEAT, SUGARBEET, AND CHIKPEA . AGRICULTURAL SCIENCES AND TECHNOLOGY, 15(1), 121-133. SID. https://sid.ir/paper/22346/en

Vancouver: Copy

KAFI FALAVARJANI M., GOLDANI M.. EFFECTS OF WATER POTENTIAL AND TYPE OF GSMOTICUM ON SEED GERMINATION OF THREE CROP SPECIES OF WHEAT, SUGARBEET, AND CHIKPEA . AGRICULTURAL SCIENCES AND TECHNOLOGY[Internet]. 2001;15(1):121-133. Available from: https://sid.ir/paper/22346/en

IEEE: Copy

M. KAFI FALAVARJANI, and M. GOLDANI, “EFFECTS OF WATER POTENTIAL AND TYPE OF GSMOTICUM ON SEED GERMINATION OF THREE CROP SPECIES OF WHEAT, SUGARBEET, AND CHIKPEA ,” AGRICULTURAL SCIENCES AND TECHNOLOGY, vol. 15, no. 1, pp. 121–133, 2001, [Online]. Available: https://sid.ir/paper/22346/en

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