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Studied on the Seed Vigor and Drought Resistance of Three Perennial Forages Belong to Bromus under PEG Stress

Bian Xiaoyan

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Abstract

Seed vigor and drought resistance of three perennial forages belong to Bromus(Bromus ciliatus,Bromus inermis,Bromus ircutensis) in the period of seed germination were compared under PEG-6000 of different levels drought stress.The results indicated that the seed vigor of Brudzynska,Bezenchukii Bromus inermis is lower under the level of 5%,but it is high under the level of 10%-20%.Relative germination rate,relative germination index,relative vigor index and drought-resistance index of the materials under the drought stress simulated by PEG were evaluated synthetically membership function method.And the drought resistance of Bromus inermis in Inner Mongolia Zheng Xiang Lan Qi and Bromus ciliatus in Ke Shi Ke Teng Qi is higher;the drought resistance of Brudzynska Bromus inermis,Bromus ciliatus 9708,Bezenchukii Bromus inermis is medial;Bromus ircutensis's in Inner Mongolia Zheng Xiang Lan Qi and Ke Shi Ke Teng Qi is low.

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What this paper is about

Seed vigor and drought resistance of three perennial forages belong to Bromus(Bromus ciliatus,Bromus inermis,Bromus ircutensis) in the period of seed germination were compared under PEG-6000 of different levels drought stress.The results indicated that the seed vigor of Brudzynska,Bezenchukii Bromus inermis is lower under the level of 5%,but it is high under the level of 10%-20%.Relative germination rate,relative germination index,relative vigor index and drought-resistance index of the materials under the drought stress simulated by PEG were evaluated synthetically membership function method.And the drought resistance of Bromus inermis in Inner Mongolia Zheng Xiang Lan Qi and Bromus ciliatus in Ke Shi Ke Teng Qi is higher;the drought resistance of Brudzynska Bromus inermis,Bromus ciliatus 9708,Bezenchukii Bromus inermis is medial;Bromus ircutensis's in Inner Mongolia Zheng Xiang Lan Qi and Ke Shi Ke Teng Qi is low.

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Available abstract

Seed vigor and drought resistance of three perennial forages belong to Bromus(Bromus ciliatus,Bromus inermis,Bromus ircutensis) in the period of seed germination were compared under PEG-6000 of different levels drought stress.The results indicated that the seed vigor of Brudzynska,Bezenchukii Bromus inermis is lower under the level of 5%,but it is high under the level of 10%-20%.Relative germination rate,relative germination index,relative vigor index and drought-resistance index of the materials under the drought stress simulated by PEG were evaluated synthetically membership function method.And the drought resistance of Bromus inermis in Inner Mongolia Zheng Xiang Lan Qi and Bromus ciliatus in Ke Shi Ke Teng Qi is higher;the drought resistance of Brudzynska Bromus inermis,Bromus ciliatus 9708,Bezenchukii Bromus inermis is medial;Bromus ircutensis's in Inner Mongolia Zheng Xiang Lan Qi and Ke Shi Ke Teng Qi is low.

Key concepts: Bromus inermis, Bromus, Perennial plant, Drought resistance, Germination, Agronomy, Drought stress, Biology

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