Morpho-physiological studies of sandalwood-host interaction under individual and interactive water and salt stress

被引:1
|
作者
Sharma, Aarju [1 ,2 ]
Kumar, Ashwani [1 ]
Chahal, Sulekha [2 ]
Verma, Kamlesh [1 ]
Chauhan, Kajal [2 ]
Kumar, Raj [1 ]
Mann, Anita [1 ]
机构
[1] ICAR Cent Soil Salin Res Inst, Karnal 132001, India
[2] Kurukshetra Univ, Kurukshetra 136119, India
关键词
Sandalwood; Host species; Water deficit; Salinity stress; Morpho-physiology; Tolerance indices; SANTALUM-ALBUM L; GAS-EXCHANGE; SALINITY; PHOTOSYNTHESIS; IRRIGATION; ATTRIBUTES; TOLERANCE; NUTRITION; TRAITS; LEGUME;
D O I
10.1007/s42977-024-00220-8
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
To find out the possibilities of growing white sandalwood in sub-tropical regions of India where farmers facing the problem of water deficit and salinity stress, a RBD experiment was conducted. Sandalwood grown alone and with five selected hosts (Alternanthera sp., Neem, Shisham, Dek and Agarwood) on the basis of prior study under water deficit, salinity stress and combined water deficit and salinity stress. Sandalwood plants were harvested after 180 days of imposing stress treatments. Morphological traits (plant height, collar diameter, shoot fresh and dry biomass) showed significant reduction under water deficit and salinity stress, which were further aggravated under combined water deficit and salinity stress. Studied plant water traits, ionic balance and gas exchange attributes were also reduced by these stresses. While among studied host, Shisham and Dek identified as the best host species under water deficit, salinity and interactive stress by maintaining ion homeostasis, osmotic adjustments and plant water regulation. Results depicted that sandalwood plants cultivated alone were not able to survive under salinity and combined stress conditions and showed poor growth under water deficit and control conditions. Different indices were also calculated based on morpho-physiological and ionic traits and also indicated that sandalwood grown with Dalbergia sissoo and Melia dubia showed higher drought, salt and stress tolerance potential, which made sandalwood adaptable under these stresses. Therefore, the present study signifies the importance of host especially D. sissoo and M. dubia which might be excellent long-term host species for sandalwood cultivation under sub-tropical conditions to thrive under changing environments.
引用
收藏
页码:497 / 506
页数:10
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