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J. ISSAAS Vol. 25, No. 1 (2019) ISSN 0859-3132 Volume 25, Number 1, June 2019 The International Society for Southeast Asian Agricultural Sciences J. ISSAAS Vol. 25, No. 1 (2019) The Journal of ISSAAS is published semiannually, every June and December, by the International Society for Southeast Asian Agricultural Sciences (ISSAAS), which seeks to encourage the holistic approach to problems and to promote the progress and advancement in science and technology through research and publications, the outcome of which is for regional agricultural development. Articles published may be invited papers from the presentations at the plenary session of the ISSAAS International Congress or contributed technical papers on tropical agricultural science and related areas including agronomy, forestry, fishery, agricultural economics, crop protection, environmental science, food science, molecular biology and biotechnology, engineering, rural development, agroforestry and other fields related to agriculture. Active membership is a requirement for publication of an article in the Journal. Active membership requires that one should have fully paid the membership fees for the current year. Thus, only article submissions by paid members will be accepted. All articles should first be submitted to the Country Editors who will in turn endorse the articles to the Editor-in-Chief for review. Articles submitted for publication undergo a double-blind peer review process. The Editor-in-Chief on the other hand will have the articles reviewed by peers from other Chapters based on the standard review guidelines. Only articles which have been favorably reviewed and edited would eventually be published. The reviewers for a volume of the journal are published in the December issue of the volume. Guidelines for publication can be downloaded from: http://issaas.org/journal/index.html J ISSAAS is included in the citation database Sciverse Scopus and is currently abstracted in CABI and FAO-AGRIS. Online version can be accessed at: http://issaasphil.org/issaas-journals/ J. ISSAAS Vol. 25, No. 1 (2019) CONTENTS Contributed Papers Page Response of promising rice CSSL IAS66 and its parents under different nitrogen levels Nguyen Hong Hanh, Pham Van Cuong, Tang Thi Hanh and Nguyen Van Hoan…………….. 1 Establishing soil phosphorus critical level for potato (Solanum tuberosum L.) in andisol of Lembang, Indonesia Gossaye Hailu Debaba, Arief Hartono, Untung Sudadi, Lilik Tri Indriyati…………………… 11 Fruit growth, endocarp lignification, and boron and calcium concentrations in Nam Hom (aromatic) coconut during fruit development Kanyanat Nikhontha, Krisana Krisanapook, Wachiraya Imsabai …………………………….. 21 Impact of climate change and economic factors on Malaysian food price Kelly Kai Seng Wong, Chin Lee and Wang Li Wong …………………………………………… 32 Technical efficiency of women in indigenous rice production in Sagada, Mountain Province, Philippines Emmanuel C. Flores and Julieta A. Delos Reyes………………………………………………….. 43 Antifungal activity of soil yeast (Lachancea kluyveri sp132) against rice pathogenic fungi and its plant growth promoting activity Chonthicha Sripodok, Anon Thammasittirong and Sutticha Na-Ranong Thammasittirong…. 55 Analysis of income and factors determining the adoption of integrated rice-fish farming system in Seyegan District, Sleman Regency, Yogyakarta, Indonesia Yusman Syaukat and Dwi Rizki Julistia………………………………………………..…………... 66 Storage decisions of jasmine rice farmers in Thailand Orawan Srisompun, Sakunkarn Simla and Surasak Boontang………………...……………… 80 Potential development of glutinous rice community towards new agricultural culture tourisms in upper northeastern Thailand Patcha Sattaka ………………………………………………….. 92 Diversity of plant genetic resources grown in Myanmar home garden: distribution and utilization of Hibiscus genus plant “Chinbao” ’ Mami NAGASHIMA, Kenji IRIE, Saki YOSHIDA, Hidehiko KIKUNO, Ohm Mar Saw,Than Than Soe and Kazuo WATANABE ………………………………………………………… 104 Chemical composition and in vitro antioxidant and antibacterial activities of Sargassum vulgare C. Agardh from Lobo, Batangas, Philippines Eldrin DLR. Arguelles, Rosario G. Monsalud and Arsenia B. Sapin…………………………… 11 2 Comparative life history of coconut scale insect, Aspidiotus rigidus Reyne (Hemiptera: Diaspididae), on coconut and mangosteen Cris Q. Cortaga, Maria Luz J. Sison, Joseph P. Lagman, Edward Cedrick J. Fernandez and Hayde F. Galvez 123 i J. ISSAAS Vol. 25, No. 1 (2019) Contributed Papers Page Screening for collusion in the Philippine chicken meat, chicken egg and pork markets Charis Mae T. Neric, Prudenciano U. Gordoncillo, Cenon D. Elca, and Janine P. Curibot.. 135 Application of analytical hierarchy process (AHP) in generating land suitability index (LSI) for sugarcane in Central Mindanao, Philippines Jim Loui P. Alburo, Jose Nestor M. Garcia, Pearl B. Sanchez and Pompe C. Sta. Cruz……. 148 Report of the Secretariat…………………….…………………………………………….…………. 159 Editorial Committee…………………….…………………………………………….……………… 163 ii J. ISSAAS Vol. 25, No. 1: 1-10 (2019) RESPONSE OF PROMISING RICE CSSL IAS66 AND ITS PARENTS UNDER DIFFERENT NITROGEN LEVELS Nguyen Hong Hanh1, Pham Van Cuong1,2*, Tang Thi Hanh1 and Nguyen Van Hoan2 1Faculty of Agronomy, Vietnam National University of Agriculture (VNUA), Vietnam 2Center of International Plant Research Vietnam and Japan, VNUA, Vietnam *Corresponding author: [email protected] (Received: September 13, 2018; Accepted: February 11, 2019) ABSTRACT Pot experiments were conducted on rice to estimate the relationship among dry weight, translocation of non-structural carbohydrates (NSC), and grain yield in IAS66, a chromosome segment substitution line (CSSL) derived from a cross between the indica cultivar IR24 and the japonica cultivar Asominori, in comparison with its parental cultivars (IR24 and Asominori) under non-nitrogen (N0), normal nitrogen (N1), and high nitrogen (N2) conditions in the spring season 2017 in a greenhouse at the Faculty of Agronomy, Vietnam National University of Agriculture, Vietnam. Increasing the nitrogen level increased the photosynthetic rate in terms of the CO2 exchange rate (CER) and leaf area, which lead to both greater dry weight and NSC transportation from culms and leaves sheaths (stem) to panicles in all genotypes. However, the rate of increase in dry weight and NSC in the panicles at the maturing stage observed in IAS66 was higher than that in its parental cultivars. As nitrogen increased from the N1 to N2 levels, the grain yield significantly increased because the number of panicles per plant increased, but the other yield components including the number of spikelets per panicle, grain- filling, and 1000-grain weight were not significantly different. Grain yield of IAS66 was 11.4% higher than that of the recurrent parent IR24 at the same high nitrogen levels and the rate of grain yield increase in IAS66 was significant higher than that of its parental cultivars. Key words: dry weight, non-structural carbohydrates, grain yield, nitrogen use efficiency . INTRODUCTION Rice is the staple food grain for more than half of the world’s population. It was estimated that the world will have to produce 40% more rice per year, equivalent to 852 million tons, by 2035, indicating that the yield potential of rice will need to increase from 10 to 12.3 tons per hectare to satisfy the growing demand without affecting the resource base adversely (Khush 2013). Crop yield mainly depends on both the formation and translocation of carbohydrates before flowering, and the partitioning of the accumulated assimilates during the grain filling period (Yoshinaga et al. 2013). Additionally, the photosynthesis activity of sources (leaves) and storage ability of the sinks (grains) impacts carbohydrate remobilization from the stem and also affects the final grain weight. Katsura et al. (2007) suggested that the grain yield of rice was affected primarily by large amount of biomass accumulation before heading stage, while Takai et al. (2006) and Tang et al. (2008) reported that grain yield is mainly determined by carbohydrates supplied from photosynthesis after heading and partly by reserve carbohydrates in the culm and leaf-sheaths accumulated before heading stage. Therefore, further studies are required to clarify whether the roles of the reserve carbohydrates and biomass accumulation are different among the genotypes. Nitrogen plays an important role in increasing photo-assimilates during the ripening period, contributing to the size of the sink by decreasing the number of degenerated spikelets and enhancing the rate of grain filling. Increasing nitrogen application has been shown to increase nitrogen content in leaves which leads to an enhanced photosynthetic capacity and increased dry weight (Mae 1997; Nagata 1 Response of promising rice CSSL IAS66….. et al. 2001). Thus, it was concluded that the supply level of nitrogen greatly regulates dry weight production and non-structural carbohydrate (NSC) transportation in rice genotypes. Recently, chromosome segment substitution lines (CSSLs) that cover the whole genome have been constructed in rice and contain target genes that aid molecular marker techniques (Kubo et al. 2002; Ebitani et al. 2005). CSSLs can be used as a good source of genetic material for breeding programs based on the performance of interested traits from donor chromosome segments. Kubo et al. (2002) developed 70 CSSLs in a cross IR24 x Asominori with IR24 genetic background called IAS. Among these lines, IAS66 was shown to be a promising rice line with good phenotypic traits such
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