JERAMI - Indonesian Journal of Crop Science
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The article Response of Two Rice Varieties Grown using SRI Method in Two Different Locations
No full textoai:ojs2.jerami.faperta.unand.ac.id:article/11Application of system of rice intensification (SRI) method has been considered as one of powerful efforts to increase the harvested yield by modifying the plant and itssurrounding environment. This study was aimed to determine the effect of different environment towards the response of rice varieties grown using SRI method. Two rice varieties, Batang Piaman and IR-42 were grown in District of Tanjuang Barulak (Regency of Tanah Datar) and District of Saniang Baka (Regency of Solok). Plant height and several yield parameters, such as productive tillers, panicle length, grain number per panicle, and yield per plot were assessed from both varieties and locations. Statistical analysis was conducted using randomized block design (RDB) and significance was further evaluatedusingDuncan’s New Multiple Range Test (DNMRT) with a p>0.05. Batang Pariaman appeared in taller performance than IR-42. Regarding the number of productive tiller, Batang Piaman resulted more productive tillers in Solok, while IR-42 was dominant in number of productive tiller compared to Batang Piaman in Tanah Datar. Unlike IR-42, Batang Piaman exhibited longer panicle, more grain amounts per panicle, and higher yield per plot than IR-42 in both locations
Characterization of Agronomic and Quality from Three Clones of Ramie Plant (Boehmeria nivea [L.] Gaud.) in Ultisol Limau Manis
No full textThe quality improvement of ramie, including inner and outer aspects are required to be developed to optimalize its production. Unlike horticulture and food crops, ramie cultivation is not constrained by the soil type. This study was aimed to evaluate the agronomical characteristics of three ramie clones in ultisol land. This study was performed using descriptive analysis method with purposive sampling by collecting 10 clumps per clone. Clones of fiber ramie used were Ramindo 1, Bandung A and Lembang A. All clones were planted in ultisol soil located in 350 m above sea level from September 2015 until March 2016. The highest fiber production was achieved from Ramindo 1 followed by Bandung A and Lembang A. The resulted fiber from all clones was considered as quality class II fiber marked by the nominal value ranging from 400-450. Bandung A exhibited the best quality of fiber with nominal value of 450. In terms of its chemical composition, fiber produced by Lembang A contained the highest cellulose (74.7%) with the lowest lignin content (3.6%)
The Effect of Pollination Models on Yield of Red Pitaya (Hylocereus polyrhizus)
No full textRed pitaya is getting more popular in Indonesia recently as one of high antioxidant sources with a promising economic value. However, the production of this CAM plant is restricted by low success percentage of its natural pollination and self incompatibility problems. Therefore, artificial pollination is required to overcome these problems and increase its yield. This study was aimed to evaluate the effect of pollination models towards the yield of red pitaya. This study was conducted using randomized block design with three pollination models applied into nine groups. Pollination models used were open pollination (P1), hand-self-pollination (P2) and hand-cross pollination (P3). Several floral-related parameters, including the elongation of flower bud, diameter of blooming flower, length of stigma, number and length of anthers, were assessed. Effect of different pollination models was also observed through some yield-related parameters, such as fruit weight, fruit diameter, fruit length, harvesting age and number of fruit sets. This study revealed that hand cross pollination produced the best yield performance showing 541.1 gram of fruit with 11.5 in length and 8.66 cm in diameter. Harvesting age and number of fruit sets showed no significant difference among those three pollination models.
Keywords: Pollination, red pitaya, yields, fruits, flower
Effect of Different Seed Water Content and Storage Duration towards Seed Viability of Local Genotype Brown Rice Daro Merah
No full textMost of rice seeds experience after ripening problem which then result in seed dormancy. This kind of dormancy could be broken through various types of treatments, including storaging in dry place for certain period. This study was aimed to evaluate the combination between seed water content and storage duration to induce the seed germination of local genotype brown rice, Daro Merah. Various levels of seed water content (6-10, 11-15, 16-20 and 21-25 %) and storage duration (2, 4, 6 and 8 weeks) were evaluated to identify its effect on Daro Merah seed germination. Data were analyzed using two-way analysis of variance where significance were further proceeded using Duncan’s New Multiple Range Test with a p>0.05. The results showed that seed germination of Daro Merah reached 95 % at five days after seeding when the seed water content was maintained at 6-10% and stored for 8 weeks. After 14 days, the germination reached 99 % and most of the seeds showed some shoots emerged from the soil.
Keywords: Brown rice, germination, seed water content, storage duration, Daro Mera