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A. Soemargono
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Agriculture, Biological Sciences & Forestry

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CHARACTERIZATION OF FRUIT ON SEVERAL SALAK VARIETIES AND THEIR HYBRIDS Hadiati, Sri; Budiyanti, T.; Soemargono, A.; Susiloadi, A.
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

The objective of this study was to characterize salak of local varieties and their hybrids. The fruits characterized were taken from plants that were grown in October 2004. The results revealed that fruits ³ 61 g were mostly produced by hybrids, in which one of their parents was Mwr or Ph. Fruits with flesh thickness ³ 0.85 cm were mostly yielded from Sdp, Sdm, and hybrids where one of their parents was Sdp or Mwr. While fruits with edible portion ³ 65.0% were mostly yielded from Sdp, Gp, and hybrids where their female parents were Mwr, Ph, and Sdp. Fruits with small seeds (≤ 3.0 g) were observed on Gp, whilst those with big seeds (≥ 7.0 g) were on Sdm, Sdm-Sj and Sdp-Sj. Hybrids from the female of Ph and Sdp mostly gave sweet taste (TSS ≥ 20º Brix). Mwr x Sdp crossing produced non-astringent fruits, while Ph x Java (K, M, Mj), Sdp x Sjg and some Sdp x Mwr crossing as well as Mwr produced astringent fruits. The four superior characters, namely fruit ≥ 61 g, flesh thickness ³ 0.85 cm, edible portion ≥ 65%, and TSS ≥ 20º Brix were found in Mwr-Sp-8, Sdp-Sj-8, and          Ph-M-7. Fruits produced by Mwr-Sp-8 were not astringent, while those produced by Sdp-Sj-8 and Ph-M-7 were astringent. These findings suggest that the selection of parent can play an important role in improving the varieties of salak. Keywords: salak, characterization, variety, hybrid, fruit
SPATIAL DISTRIBUTION PATTERN OF THE FRUIT FLY, BACTROCERA DORSALIS COMPLEX (DIPTERA: TEPHRITIDAE) IN MANGO ORCHARD Soemargono, A.; Muryati, Muryati; Hasyim, Ahsol; Istianto, Mizu
AGRIVITA, Journal of Agricultural Science Vol 33, No 3 (2011)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v33i3.69

Abstract

The spatial distribution of Bactrocera dorsalis complex in the mango orchard that was analyzed using various mathematical indices dispersion and regression models showed an aggregated distribution. Taylor?s power law and Iwao?s regression model fitted well to all data sets. However, Iwao?s regression model fitted the data better, yielding higher values of R2 than Taylor?s power law. As the regression of the reciprocal of k of negative binomial (1/k) on x [k = ( x2 ? s2/n) / (s2 ? x )] was not significant, the calculation of a common k was justified to be 1.30. This implies that the grade of aggregation of the fruit flies population was relatively constant throughout the time despite the variation in sample means. Since the clump size (?) value was more than 2, the aggregated distribution might be due to the behavior and environmental factors working together.Keywords: Bactrocera dorsalis complex, spatial, distribution, trapping, mango
CHARACTERIZATION OF FRUIT ON SEVERAL SALAK VARIETIES AND THEIR HYBRIDS Sri Hadiati; T. Budiyanti; A. Soemargono; A. Susiloadi
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i2.186

Abstract

The objective of this study was to characterize salak of local varieties and their hybrids. The fruits characterized were taken from plants that were grown in October 2004. The results revealed that fruits ³ 61 g were mostly produced by hybrids, in which one of their parents was Mwr or Ph. Fruits with flesh thickness ³ 0.85 cm were mostly yielded from Sdp, Sdm, and hybrids where one of their parents was Sdp or Mwr. While fruits with edible portion ³ 65.0% were mostly yielded from Sdp, Gp, and hybrids where their female parents were Mwr, Ph, and Sdp. Fruits with small seeds (≤ 3.0 g) were observed on Gp, whilst those with big seeds (≥ 7.0 g) were on Sdm, Sdm-Sj and Sdp-Sj. Hybrids from the female of Ph and Sdp mostly gave sweet taste (TSS ≥ 20º Brix). Mwr x Sdp crossing produced non-astringent fruits, while Ph x Java (K, M, Mj), Sdp x Sjg and some Sdp x Mwr crossing as well as Mwr produced astringent fruits. The four superior characters, namely fruit ≥ 61 g, flesh thickness ³ 0.85 cm, edible portion ≥ 65%, and TSS ≥ 20º Brix were found in Mwr-Sp-8, Sdp-Sj-8, and          Ph-M-7. Fruits produced by Mwr-Sp-8 were not astringent, while those produced by Sdp-Sj-8 and Ph-M-7 were astringent. These findings suggest that the selection of parent can play an important role in improving the varieties of salak. Keywords: salak, characterization, variety, hybrid, fruit
Co-Authors A. Susiloadi Ahsol Hasyim Mizu Istianto Muryati Muryati Sri Hadiati T. Budiyanti