Tag Archives: adaptation

306-319 S.R. Karimuna, W. Sulistiono, Taryono, T. Alam and A. Wahab
Agronomic traits determinants of superior varieties and millable cane productivity of sugarcane (Saccharum officinarum L.) on dryland, Indonesia
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Agronomic traits determinants of superior varieties and millable cane productivity of sugarcane (Saccharum officinarum L.) on dryland, Indonesia

S.R. Karimuna¹, W. Sulistiono²*, Taryono³, T. Alam³ and A. Wahab⁴

¹Assessment Institute for Agricultural Technology of Southeast Sulawesi, Indonesia
²Research Center for Horticultural and Estate Crops, Cibinong Science Center,
Co-Working-Space (CWS) Sukolilo Surabaya
³Universitas Gadjah Mada, Faculty of Agriculture, Jl. Flora Bulaksumur-Yogyakarta 55281, Indonesia
⁴Assessment Institute for Agricultural Technology of Central Sulawesi,
Palu-Kulawi street, No. km 17, Maku, Dolo-94362 Sigi, Indonesia
*Corresponding Author: tionojanah@gmail.com

Abstract:

Indonesia is one of the sugar-producing countries in the world, with most of the planting area shifted to dryland, sub-optimal. During the development of production, it is necessary to select varieties that are suitable for dryland. This study aimed to determine the adaptation of superior sugarcane varieties on dryland. This study used a split-plot under repeated Randomized Complete Block Design (RCBD). Six superior sugarcane varieties used in this research were Saccharum ‘CMG Agribun ’, Saccharum ‘AAS Agribun’, Saccharum ʻASA Agribunʼ, Saccharum ʻAMS Agribunʻ, Saccharum ʻPS864ʼ and Saccharum ‘Bululawang’. The variables observed were plant height, stem diameter, number of segments, and number of tillers at the age of 13, 15, and 17 WAP (weeks after planting). The results showed that growth parameters, namely plant height at 13 and 15 WAP, number of tillers at 15 and 17 WAP, and stem diameter at 13 and 15 WAP, showed better growth, indicating superior agronomic properties of a sugarcane variety on dryland. Saccharum ‘AMS Agribun’ and Saccharum ‘Bululawang’ varieties, stem diameter, increased with spacing treatment at the early growth of 17 weeks after planting. The Saccharum ‘PS864’ was the best, having the highest average of agronomic values compared to other varieties. The Saccharum ‘PS864’ had the highest plant height and number of internodes. The highest number of tillers was obtained in the Saccharum ‘AAS Agribun’ varieties.

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376-396 P.H. Sinaga, Elfiani, R. Yusuf, Nurhayati, R. Yunita, D.W. Utami and S.S. Girsang
Resistance of local rice progeny to ferrous iron toxicity between locations, seasons, and salt application in tidal lands
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Resistance of local rice progeny to ferrous iron toxicity between locations, seasons, and salt application in tidal lands

P.H. Sinaga¹*, Elfiani², R. Yusuf¹, Nurhayati¹, R. Yunita³, D.W. Utami³ and S.S. Girsang¹

¹National Research and Innovation Agency, Agricultural and Food Research Organization, Cibinong Science Center, Jl. Raya Jakarta-Bogor, Cibinong, Bogor Regency 16915, Indonesia
²The Assessment Institute for Agricultural Technology of Riau, Jl. Kaharudin Nasution No. 341 Pekanbaru, Indonesia
³National Research and Innovation Agency, Research Center for Horticulture and Estate Crops. Cibinong Science Center, Jl. Raya Jakarta-Bogor, Cibinong, Bogor Regency 16915, Indonesia
*Correspondence; parlinhs2013@gmail.com

Abstract:

Rice is the main food in Indonesia that grows in various agroecosystems. The challenge is ferrous iron toxicity (FIT), wherein adaptive varieties with high yield potential be required to support increased production. The study objectives were to produce tolerant and widely adapted lines of FIT from local parents, to determine the stability of the lines in various environments and seasons in FIT rice fields, and to determine the response of rice lines to salt application. Two local Fe-tolerant parents that is Cekau and Karya, were used as females to produce lines that were tested for FIT. High-yielding lines and early maturity were selected to represent tolerant, quite tolerant, and moderate to FIT. The research was designed according to a randomized complete block design with 3 replications. Most of the local cultivar descent were resistant to FIT and stable at various locations and seasons. There was an interaction between the lines and the environment in the multilocation test, but in the high-Fe field test, there was no interaction between the lines and the season. Sensitive lines gave higher yields in the dry season than in the rainy season, but the tolerant lines are not affected by the seasons. The long dry season followed by high rainfall caused the accumulation of Fe on the soil surface to increase followed by a decrease in yields of moderate and sensitive lines. The addition of 200 kg ha-1 of salt increased the productivity of tolerant, quite tolerant, and moderate lines by improving root quality.

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