· Total of 130 genotypes collected from various place of Karbialong, Dimahaso district of Assam and Nagaland for screening for high temperature tolerance
· Tolerant genotypes had some degree of tolerance against elevated temperature and CO2 and this could be attributed to their higher photosynthesis, accumulation of NSC, growth performance, reduction of ROS,, water relation parameters, MSI, CSI, NR activity, osmotic adjustment, modification of morphological parameters.
Note : Due to COVID pandemic and lack fund we are not able to conduct the third year experiment. May be in coming year when budget will available we will again revaidate data with more line .
1. National Conference on Plant Physiology organised by AAU, Jorhat and ISPP, New Delhi on 5th –7 November 2009
2. ICAR sponsored summer institute on “Climate variability and its impact on crop production–physiological perspective towards mitigation strategies” for 21 days (23rd August to 12th September 2011) at Assam Agril University , Jorhat.
3. Thematic meeting on Application of Radiation Technology and radioisotope in the field of Agriculture, Food and Health” on 28-29th May, 2014.
4. ICAR sponsored summer Institute on 'Abiotic and Heavy Metal Stress Management in Crop through Physiological, Phytoremediation and Proximate sensing approaches (September 02, 2016 to September 22, 2016).
5. International conference on Climate Change, Biodiversity and Sustainable Agriculture’ (ICCBSA-18) held on 13-16th December, 2018 :
6. ICAR Sponsored Winter School on ‘Abiotic Stress: Advances, impact and prospects’ w.e.f. February 06, 2019 to February, 26, 2019.
7. International Conference n Biodiversity, Food security, Suistainability & Climate Change (ICBFSCC-2023) during 25-28 April, 2023.
1. Methane emission in paddy field is a common phenomenon observed in kharif, Boro, Ahu rice. Traditional local cultivars emit high amount of methane compared to high yielding varieties.
2. Incorporation of Azolla in rice field is an innovative approach that presents a novel opportunity to expand and diversify the supply of fertilizers and production of rice crop through tapping CO2 and enhancing the O2 evolution system under changed environmental conditions. This is revealed in the research project ‘“Tapping Of Carbon Dioxide In Rice Ecosystem Through Azolla Cultivation.”
3. In a project entitled ‘“Crop condition assessment under abiotic stress of few selected major crops of NER using remote sensing technique.”, the spectral data NDVI on different crops have been developed to understand the various strategies adopted by plants to cope with abiotic stresses viz., elevated CO2, high temperature and varying level of nitrogen fertilizations. The study identified genotypes viz., Inglongkri and Banglami, developed model for modifying cultivation and nutrient application pertaining to the changed climatic situations.
4. Impacts of high temperature and elevated CO2 on different crops like rice, chili and garlic etc. have been studied and high CO2 & temperature responsive rice lines like Inglongkiri, and Banglami have been identified.
5. From the growth parameters and carbon sequestration data, B. tulda followed by Bambusa balcooa showed high carbon sequestration potential among the five bamboo species viz.,Bambusa tulda (Jati), B. balcooa (Bhaluka), B. nutans (Makal), B. bambos (Kata) and Dendrocalamus hamiltonii (Kako). In addition to these, the species of bamboo Dendrobium hemiltoni could be used by farmers to obtain highest profit because it has the highest biomass production capacity. Considering the carbon sequestration potential, this species can be used extensively for plantation in farmers field and in certain uncultivated lands as a solution to the menace of global warming.
6. Nitrogen deposited through aerosol of oxides of nitrogen ranges from 6.0-38kgha-1yr-1, whereas nitrogen deposited from aerosol of ammonia is in between 7-24 kgha-1yr-1 in Assam.
7. ‘Wheat 231’ is a physiologically efficient wheat variety identified for higher NUE with higher yield and its attributes. Moreover, dose response studies indicated that either N @ 150 kg ha1 (as granule) or N @ 1500 ppm (as foliar spray) in the form of Urea, was found to be effective in augmenting the nitrogen use efficiency.
8. Srimanta, a variety of Sali rice genotype, has been found to be viable for delayed sowing situations in Assam, where the sowing is needed to be deferred by more than one month owing o recurrent flood.
9. Wheat crop varieties viz.C-306 and PBW-343 have been identified as physiologically efficient under rain fed situation of Assam.
10. Breaking of potato bud dormancy: Just after harvest, potato tuber has a dormancy period. These tubers can be induced to sprout for the second crop by treating with 10 ppm GA3.
11. Cold hardening of Boro rice: Boro rice seedling can withstand adverse effect of low temperature and grow well when sprayed with 10 ppm of GA3.
12. Yield and quality improvement of ratoon pineapple: NAA @ 100 ppm plus Zn
@ 0.2% when sprayed on the developing fruit of ratoon pineapple results in 30% increase in yield and quality of fruit.
13. Storage of ginger: Ginger variety ‘Nadia’ when packed in perforated polythene bag can be well stored for 5 – 7 months.
· Sonalika wheat seeds when soaked with 1% potassium dihydrogen phosphate improves yield under rainfed condition.
14. When rice seedlings are dipped (roots) in 2% Calcium chloride solution and then planted, can tolerate iron toxicity to a great extent.
· Priming rape seed with 0.05% ascorbic acid and when sown is found to increase yield and other yield attributing character etc.
15. Rice ecotypes viz. IET 17509. Bandana and Govind have been found to perform better under aerobic situation compared to irrigate one during ‘Ahu’ season.
16. Vase life of gladiolus spikes can be increased up to eight days compared to control by combined application of Salicylic acid 150ppm+10ppm Nanosilver +4% Sucrose in the holding solution.
17.