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Identification of drought resistance of Centrosemapubescens Benth at seedling stage |
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Abstract: |
By…spot…experiment, the…drought…resistance…of…20…Centrosema pubescens Benth…at…seedling…stage…was…
evaluated…by…means…of…drought…stress-rehydration, and…the…blade…wilting…and…recovery…process…after…rehydration…was…
observed, electrical…conductivity…rate(REC) , proline(Pro) …content, malondialdehyde(MDA) …content, chlorophyll…
content, water…content…of…leaves(WC)and…soil…water…content…were…deterted.…The…results…showed…that, under…drought…
stress, with…the…increase…of…stress…time, REC…and…Pro…content…increased, while…chlorophyll…content, water…content…
of…leaves(WC)and…soil…water…content…decreased; MDA…content…firstly…increased…then…decreased…and…chlorophyll…
content…had…no…significant…change.…After…rehydration, all…these…indicators…regained…their…original…state.…According…to…
the…comprehensive…evaluation…of…the…Subordinate…function…analysis…on…indicators…under…drought…stress…on…the…9th…day,
the…following…C. pubescens…Benth…had…stronger…stress…resistance: CIAT5006, CIAT5627, 050319012, 020411050,
060306037. |
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