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All Journal MAPETA JURNAL AGROHITA Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Nusantara Science and Technology Proceedings
Koentjoro, Yonny
Agrotechnology Study Program, Agriculture Faculty, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Indonesia
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Journal : Nusantara Science and Technology Proceedings

 1 
Content of Abscisic Acid and Potassium as Drought Stress Indicator on Soybean Yonny Koentjoro; F. Deru Dewanti; Sukendah
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The extreme evapotranspiration on plants and soil surface is a factor that affects plant growth and production. Specifically, water loss in soybean plants affects the ABA content (abscisic acid) and potassium content in the plant. This study aims to evaluate the content of abscisic acid and potassium as indicators of drought stress in soybean plants. This study was designed following the 1-factor experimental rules and using a completely randomized design. The treatment factor is giving of water consisting of A0 = Giving water 100% normal needs, A1 = Giving water 75% normal needs, A2 = giving water 50% normal needs, A3 = giving water 25% normal needs. The results showed that ABA biosynthesis increased in plants experiencing drought stress, the decreasing giving of water, the ABA levels in the leaves increased. The potassium content in plants shows a positive correlation with water supply, the lower the water supply, cause the lower of potassium content. The relationship between abscisic acid content and potassium content in plants indicated that during the occurrence of water deficiency it would trigger an increase in ABA biosynthesis and this condition caused the potassium content in the plant to decrease (R2 = 0.99). Besides, the treatment of giving water had a significant effect on the variables of relative water content in leaves, number of leaves and weight of seeds per plant. The increase in ABA content and decrease in potassium content in plants is an indicator of plants experiencing drought stress.
Silicon Application to Several Soybean (Glycine max, Merrill) Varieties Under Drought Stress Condition Yonny Koentjoro; F. Deru Dewanti; Sukendah; Djoko Purnomo; Edi Purwanto
Nusantara Science and Technology Proceedings Seminar Nasional Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2008

Abstract

Drought stress becomes a serious threat to the cultivation of soybean because it could affect the whole processes of soybean plants that may ultimately result in a significant reduction in yield. To obtain high production in drought stress conditions, one needs such efforts as including the use of utilizing high yielding varieties resistant to drought and/or designing environmental alteration engineering by using compounds or substances which can set osmolitic regulation. This study aims to determine the effect of the use of silicon (silica) on the four morpho-agronomic characters of soybean varieties tested. The study is designed by using a Factorial Randomized Block Design basis and implemented at the Faculty of Agriculture experiment station UPN “Veteran” Jawa Timur. The results showed that there were are significant interactions between treatment varieties and silica concentration for of the variables; the number of branches, number of pods per plant, and seed weight per plant. Character of each variety show varied responses to the application of silicon. Silicon concentration of 20 cc / l increased the weight of seed weight per plant and seed yield potential per hectare.
The Effect of Paitan (Tithonia diversifolia) dose on Growth and Yield of Potato (Solanum tuberosum L.) Granola Purple Flowered Variety F. Deru Dewanti; Yonny Koentjoro; Sugiarto; Puji Lestari Tarigan
Nusantara Science and Technology Proceedings Seminar Nasional Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2014

Abstract

Potato farming in Jawa Timur currently tends to be oriented towards high production. Increasing the yield of potato quality is by controlling fertilizers and the population. The use of paitan as an organic fertilizer to replace an organic fertilizer is easy and efficient. This study aims to determine the effect of organic fertilizer application on the yield of Granola potatoes (Solanum tuberosum L.). Treatment using a dose of paitan (D) consisted of: D0 = Control (without fertilization), D1 = 120 kg N ha-1 equivalent to 5882 t ha-1 fresh paitan, D2 = 175 kg N ha-1 equivalent to 8,578 t ha-1 fresh paitan, D3 = 230 kg N ha-1 equivalent to 11,273 t ha-1 fresh paitan, D4 = 175 kg N ha-1 equivalent to Urea 380 kg ha-1, P2O 149.76 kg ha-1, K2O 100 kg ha-1. The treatment is given once a week before planting. Parameters observed were plant height and the number of tubers. The results of the study showed that paitan organic fertilizer equivalent to 380 kg N ha-1 was able to produce plant growth and yields that were no different when compared to inorganic fertilizers. In addition, the use of organic fertilizers can preserve the environment for long-term agricultural activities.
Effect of Organic Planting Media on the Growth of Purslane (Portucala oleracea L.) Seedling F. Deru Dewanti; Sukendah; Puji Lestari Tarigan; Yonny Koentjoro
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3205

Abstract

Purslane is an annual plant that has various benefits. This plant contains omega 3 which is equivalent to other types of vegetables. So far, purslane is still considered a weed, so it doesn't have a cultivation technique to get the results. This study aims to obtain a combination of planting media for the growth of purslane. This research is the beginning to increase the purslane omega 3 content. Because genetic factors and environmental conditions can affect the growth and development as well as the chemical content of plants. The experimental design used a completely randomized design (CRD). The planting media used were: soil, soil + husk charcoal, soil + compost, and soil + husk charcoal + compost. The treatment was repeated 4 times, so there are 12 observation units. Observations were made on the number of leaves and the number of branches. The results showed that the combination of soil+compost gave the best effect on the number of leaves and the number of branches of the purslane seedling
Effect of Organic Planting Media on the Growth of Purslane (Portucala oleracea L.) Seedling F. Deru Dewanti; Sukendah; Puji Lestari Tarigan; Yonny Koentjoro
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3205

Abstract

Purslane is an annual plant that has various benefits. This plant contains omega 3 which is equivalent to other types of vegetables. So far, purslane is still considered a weed, so it doesn't have a cultivation technique to get the results. This study aims to obtain a combination of planting media for the growth of purslane. This research is the beginning to increase the purslane omega 3 content. Because genetic factors and environmental conditions can affect the growth and development as well as the chemical content of plants. The experimental design used a completely randomized design (CRD). The planting media used were: soil, soil + husk charcoal, soil + compost, and soil + husk charcoal + compost. The treatment was repeated 4 times, so there are 12 observation units. Observations were made on the number of leaves and the number of branches. The results showed that the combination of soil+compost gave the best effect on the number of leaves and the number of branches of the purslane seedling
Co-Authors -, Moegijanto -, Mulyanto Adam Ankeda Asza Agus Sulistyono Dewanti, Felicitas Deru Djoko Purnomo Edi Purwanto Guniarti Guniarti Ida Retno Moeljani Liliek Liliek Puji Lestari Tarigan Sugiarto Sukendah Sukendah Sukendah