The agro-physiological characteristics of three rice varieties affected by water depth in the coastal agricultural land of Yogyakarta, Indonesia

Abstract

Abstract. Nasrudin, Kurniasih B. 2021. The agro-physiological characteristics of three rice varieties affected by water depth in the coastal agricultural land of Yogyakarta, Indonesia. Biodiversitas 22: 3656-3662. Coastal agricultural land has many obstacles of abiotic stress for plant cultivation, including waterlogging, strong wind, and high salt concentration. Therefore, the use of adaptive rice varieties, as well as good land management, are expected to be a solution for rice cultivation in the coastal agricultural land. The objective of this study was to examine the agro-physiological characteristics of three rice varieties planted in coastal agricultural land which were affected by water salinity up to more than 10 dS m-1. This study was conducted from February to July 2017 at Tirtohargo, Bantul District, Special Region of Yogyakarta. The experiment was arranged in a split-plot design, with the depths of sunken-bed as a main plot consisted of 25 cm and 50 cm, and variety as a subplot consisted of IR 64, Inpara 4, and Dendang. The experiment results showed that Dendang had the highest growth and yield in coastal agricultural land compared to Inpara 4 and IR64. The highest value is indicated in plant height, leaf area, proline content, and productivity. The depths 50 cm of sunken-bed increased leaf area and proline content, whereas the depths of 25 cm sunken-bed increased productivity. Dendang showed better agro-physiological activity and had the highest productivity. The depths of 50 cm increased several parameters in agro-physiological characteristics, however, the depths of 25 cm increased grain yield. Among the varieties tested, in salinity, the highest growth and yield variables were shown by Dendang, followed by IR 64 and Inpara 4.

The Effect Of High Salt Stress On The Agronomic, Chlorophyll Content, and Yield Characteristics Of Several Rice Varieties

“…Water is known to be very useful for supporting the metabolism processes in plants such as photosynthesis to produce and translocate more assimilate to the grain. Therefore, when ion Na + was high in the root will inhibited water uptake through the roots and caused the physiological processes will be hampered and cause the production and distribution of assimilate were not optimal [25]. The salt concentration above the tolerant threshold will compromise the adaptive process of rice plant and lead to lower productivity [26].…”

The implementation of permaculture design as a solution to achieve the food security in sub-optimal areas of Pangandaran Regency

“…Suatu lahan pertanian dikatakan suboptimal apabila memiliki berbagai faktor pembatas dalam memproduksi tanaman seperti adanya angin kencang, kadar garam tinggi, evapotranspirasi tinggi, banjir, dan faktor pembatas lainnya (Nasrudin & Kurniasih, 2021). Karangjaladri merupakan salah satu Desa yang memiliki lahan pertanian suboptimal cukup luas yakni sebesar 105 hektar.…”

Pengaruh Dosis Pupuk Silika Padat terhadap Pertumbuhan Padi Hitam Lokal Aksesi Tasikmalaya

“…Secara umum, salinitas merupakan cekaman abiotik yang dapat mengganggu proses metabolism tanaman serta menurunkan proses fisiologi, biokimia, dan produktivitas padi (Nasrudin & Kurniasih, 2021). Berdasarkan penelitian 14 HST 29,25 28,00 29,83 33,50 30,83 23,83 31,83 21,00 23,83 37,83 32,67 30,75 28 HST 57,67 50,83 60,17 58,33 60,67 39,00 51,17 44,50 50,83 67,17 46,67 53,67 42 HST 88,33 79,17 84,00 82,33 84,67 74,67 79,67 72,17 72,83 85,33 88,67 93,17 56 HST 108,83 100,83 98,83 92,50 96,50 87,00 95,17 86,83 84,33 96,83 98,67 104,00 70 HST 135,67 129,00 127,33 136,33 132,00 110,33 120,…”