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All Journal Zuriat Jurnal Hortikultura Mediagro

Gungun Wiguna

Balai Penelitian Tanaman Sayuran

Author-ID : 2687887

Agriculture, Biological Sciences & Forestry Education Environmental Science

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RESPON BEBERAPA GALUR TOMAT (Lycopersicum esculentum Mill.) TERHADAP PENYAKIT BUSUK DAUN (Phytophthora infestans (Mont.) de Bary) Gungun Wiguna; Rahmat Sutarya; Yenny Muliani
MEDIAGRO Vol 11, No 2 (2015)
Publisher : Universitas Wahid Hasyim

Tomato varieties cultivated in Indonesia is still susceptible to late blight. This research aims to determine the level of resistance of some strains of tomato to late blight. The research was conducted at the field trial Indonesian Vegetable Research Institute Lembang located at an altitude of ± 1250 above sea level. The type of soil Andisol temperate type B, with a daily average temperature ranging between 19-24 ° C, relative humidity ranged between 34-90% and an average rainfall of 2207.5 mm/year. The research was conducted from March to May 2015. The studies used randomized complete block design (RCBD) with 16 treatment lines/varieties consisting of 15 strains of balitsa tomato germplasm collection and the commercial varieties called "Intrend" as a control. The results showed that there are seven strains that have the same relative level of resistance to the control varieties of the intensity of late blight caused by the fungus Phytophthora infestans (Mont.) De Bary, the strains are 1602-14, 1608-14, 1611-14, 1616-14, 1618-14, 1620-14, and 1621-14. Furthermore, these strains can be used in further studies to obtain varieties resistant to late blight.Keywords: Late blight, line, tomato, variety.

EFEKTIVITAS ETHYL METHANE SULFONATE (EMS) TERHADAP PEMBENTUKAN TANAMAN WORTEL (Daucus carota L.) MANDUL JANTAN Gungun Wiguna; Rd. Prasodjo Prasodjo; Uun Sumpena
MEDIAGRO Vol 7, No 2 (2011)
Publisher : Universitas Wahid Hasyim

The study was conducted at Indonesian Vegetable Research Institute in March to December 2009 with an altitude of 1250 masl. The objective of study was to determine the effectiveness of EMS in producing carrots male sterile. The experiment was arranged in Complitely Randomized Block Design with two factors and three replication. The results indicate that the local carrot cultivars have the survival to maturity better than hybrid varieties. The highest percentage of living plants showed by carrot cultivar origin Cipanas (73.21%). The percentage of live plants is affected by the EMS treatment only until the age of 60 HST. Increased concentrations of EMS resulted in decreased percentage of live plants. Increased concentrations of EMS also tends to reduce the weight of thousand grains carrot seed produced from the M1 generation. Visual appearance of pollen on all EMS treated the same as the control, that is pithy and bright yellow. Treatment of various EMS concentrations level provided the individual has not been effective in producing carrots male sterile. Key words: carrot, male sterile, EMS.

Co-Authors A Purwantoro Anas Anas Chotimatul Azmi Elfira Rosalita Hiroshi Ezura Iteu Margaret Hidayat Nasrullah Nasrullah Neni Rostini Rahmat Sutarya Rd. Prasodjo Prasodjo SYARIFUL MUBAROK Uun Sumpena Yenny Muliani

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