Early growth evaluation and estimation of heritability in a sengon (Falcataria moluccana) progeny testing at Kediri, East Java, Indonesia

Abstract

Abstract. Nugroho A, Matra DD, Siregar IZ, Haneda NF, Istikorini Y, Rahmawati R, Amin Y, Siregar UJ. 2021. Early growth evaluation and estimation of heritability in a sengon (Falcataria moluccana) progeny testing at Kediri, East Java, Indonesia. Biodiversitas 22: 2728-2736. Sengon (Falcataria moluccana) is widely cultivated as a monoculture plantation in community forests that still poses a high risk of pest and disease attacks. Although plants naturally show signs of resistance, there is still however a lack of understanding on the influence of relative plant resistance on growth due to environmental and genetic factors. This study was aimed to evaluate the early growth of a sengon progeny testing in Kediri, East Java and to estimate the genetic parameters with respect to its resistance and susceptibility to stem borer and rust disease. Progeny test was designed using randomized complete block design (RCBD) with four blocks as replications. Each block consists of 100 families which was grouped into two categories, 50 families for resistant group and 50 families for susceptible group. Observations were made at the age of 0 and 9 months after planting on 9 individuals per plot in each family. Growth characteristics were measured as germination (%), height (m), and diameter (cm). Results indicated that the sengon growth rate from resistant and susceptible plant groups showed a significant difference. Heritability values are classified as moderate, ranging between 0.107 to 0.133 and 0.102 to 0.150 for height and diameter variables, respectively. These information may be used for gradual selection by considering the appropriate intensity.

Effect of Endophytic Fungi on the Growth of Sengon (Falcataria moluccana)

“…The endophytic fungi used in this study were isolated from the seeds of sengon, namely Ochroconis sp., Cladophialophora sp., Ascotricha sp., and Aspergillus sp. (Istikorini et al 2021). Isolates of endophytic fungi were rejuvenated and propagated on Potato Dextrose Agar (PDA) medium and then incubated for 14 days at room temperature.…”

“…The production of sengon wood has increased from 3,651,479 m 3 in 2018 (BPS 2018) to 5,468,716 m 3 in 2019 (BPS 2019). Sengon is a fast-growing species capable of substituting wood materials widely used in reforestation and restoration programs (Nugroho et al 2021). In addition, sengon leaves can be used as animal feed because they contain high protein (Hartanto 2011).…”

“…Endophyte fungi have improved plants' growth and resistance to pests and disease. The research conducted by Istikorini et al (2021) showed several types of endophytic fungi found inside the seeds of sengon, including Ochroconis sp., Cladophialophora sp., Ascotricha sp., and Aspergillus sp., which were non-pathogenic (Istikorini et al 2022). However, the information related to these endophytic fungi to improve plant growth is still lacking.…”

Are Tree Seed Systems for Forest Landscape Restoration Fit for Purpose? An Analysis of Four Asian Countries

“…Research institutions, universities and companies carry out research on tree species, mostly native ones, covering areas such as population genetics, breeding and silvicultural practices (e.g., [81][82][83][84][85]). In some cases, information from the trials is used for provenance selection in planting programs [86].…”

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“…Indonesia Health Data Profile 2010 revealed that pulp and periapical diseases are found in the 7 th of the ten most common diseases of outpatients in Indonesian Hospitals [3][4][5][6]. According to the Health Profile of Surakarta in 2014, the prevalence of pulp abnormalities and periapical tissue was 16,186 cases (2,56%) from the data of outpatient disease patterns in Surakarta Community Health Centre [4][5][6][7][8][9]. However, the distribution data of pulp disease remain obscure.…”