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Growth and development of industrial hemp (Cannabis sativa L.) in response to irrigation treatments


Vijay Kumar, I and Acuna, TB and Lisson, S and Hardie, M, Growth and development of industrial hemp (Cannabis sativa L.) in response to irrigation treatments, Proceedings of the 19th Australian Society of Agronomy Conference, 25-29 August 2019, Wagga Wagga, NSW, pp. 1-4. (2019) [Refereed Conference Paper]

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Opportunity exists for Australian growers to develop a commercial cannabis/hemp industry to meet global demand for seed, fibre and pharmaceutical products. Development of a commercial scale hemp industry requires improved knowledge of hemp crop water relations to maximise yield, understand irrigation requirements in new production regions, and for scheduling of harvest. Currently little is known of the hemp plant-water relations. This study sought to evaluate the growth, development and physiology of industrial hemp under varying irrigation treatments. A preliminary greenhouse experiment was conducted to monitor response of industrial hemp cultivar Ferimon 12 to different irrigation treatments (2, 4, 6, 8 and 10 day intervals). We found significantly taller plants for 2 day compared with the 8 and 10 day irrigation intervals. Significantly higher above ground dry biomass was observed for plants irrigated with 6, 8 and 10 day intervals compared to the 2 and 4 days interval at 42 DAS. Significantly higher PSII photochemical capacity (Fv/Fm) and leaf chlorophyll content (SPAD value) was observed for plants irrigated with 6 and 10 day intervals compared with the 2 day intervals. There for 6 day irrigation interval is probably the best frequency of irrigation. Results from the preliminary experiment will be used to inform the design of future research which will be used to develop irrigation recommendations and refine the hemp crop simulation model to further support farmer decision making regarding water management.

Item Details

Item Type:Refereed Conference Paper
Keywords:Industrial hemp, irrigation interval, crop growth, crop physiology, APSIM-hemp, irrigation management
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Agronomy
Objective Division:Plant Production and Plant Primary Products
Objective Group:Industrial crops
Objective Field:Industrial crops not elsewhere classified
UTAS Author:Vijay Kumar, I (Mrs Induni Vijaya Kumar)
UTAS Author:Acuna, TB (Associate Professor Tina Acuna)
UTAS Author:Lisson, S (Dr Shaun Lisson)
UTAS Author:Hardie, M (Mr Marcus Hardie)
ID Code:135627
Year Published:2019
Deposited By:Agriculture and Food Systems
Deposited On:2019-11-06
Last Modified:2020-05-20

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