Effect of The Water Consumption Characteristics and Ornamental of Four Flowering Shrubs Under Water Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of The Water Consumption Characteristics and Ornamental of Four Flowering Shrubs Under Water Stress

Author(s):: WANG Yu-tao¹; 2; LI Ji-yue²; 3; LIU Ping¹; 1.College of Forestry,Shenyang Agricultural University,Shenyang,Liaoning 110866;
2.Key Laboratory for Silviculture and Conservation of Ministry of Education,Beijing Forestry University,Beijing 100083;
3.College of Forestry,South China Agricultural University,Guangzhou,Guangdong 510642

Keywords:: water stress; flowering shrub; water consumption rate; ornamental

Abstract:: Using BP3400 Precision Balance etc.，water consumption rates and ornamental of Buddleja lindleyana，Viburnum sargentii,Weigela florida ‘Red Prince’ and Amygdalus persica f.duplex four main flowering shrubs in North China were studied.The results showed that diurnal variation curves of water consumption of four flowering shrubs were unimodal,and the daily highest water consumption rate of seedlings was in 10:00~14:00 in normal water supply,the ratio of daytime highest water consumption rate and daytime average water-consumption rate changed between 1.74 and 1.76.The water consumption of the seedlings decreased differently under different drought stress，and the daytime average water consumption rates of in serious drought stress decreased 96.6%,82.2%,88.9% and 95.8% respectively of those under normal water condition.In addition,ornamental of flowering shrubs had little changed under light water stress，for instance，B.lindleyana and A.persica f.duplex had been yellowing or falling.Four shrubs had been yellowing,curling and falling under moderate and serious stress,and A.persica f.duplex was the most serious,V.sargentii was the most light.

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Last Update: 2014-08-25