scholarly journals Seedless fruit pummelo induced by Gamma Ray irradiation: Fruit morphological characters and stability evaluation

2018 ◽  
Vol 19 (2) ◽  
Author(s):  
BAIQ DINA MARIANA ◽  
HIDAYATUL ARISAH ◽  
YENNI YENNI ◽  
MARRY SELVAWAJAYANTI

Mariana BD, Arisah H, Yenni, Selvawajayanti M. 2018. Seedless fruit pummelo induced by Gamma Ray irradiation: Fruit morphological characters and stability evaluation. Biodiversitas 19: 656-661. Pummelo is one of native citrus crops found in South East Asia including Indonesia. It is well known due to its big size and distinct taste compared to other citrus fruits. However, it contains many seeds, which may reduce the market demand and customer preferences. Therefore, the objective of this study was to generate seedless citrus by mutation techniques using gamma-ray radiation. The mutant induction of Pamelo Nambangan using gamma-ray radiation was conducted in 2003 using bud wood as plant materials. The bud wood was then irradiated with the dosage of 20, 40, and 60 Gy. The buds then grafted to Japansche Citroen rootstocks and maintained properly until the fruits could be observed. After three years of selection based on performance and fruit evaluation on MV2 generation, a mutant plant derived from 20 Gy irradiation treatments were obtained with improved character on the number of seeds. Pamelo Nambangan has more than 40 seeds/fruit and the mutant has less than 10 seeds/fruit on average. In the seedless mutant, it was observed that the mutant has embryo sac abortion leading to seedless fruit and low pollen viability (7.7%). The mutant has been released in 2016 as a new seedless pummelo variety under the name of ‘Pamindo Agrihorti’.

2021 ◽  
Vol 905 (1) ◽  
pp. 012024
Author(s):  
N Salsabila ◽  
Nandariyah ◽  
E Yuniastuti ◽  
B Pujiasmanto ◽  
Sutarno

Abstract Gamma-ray irradiation on Cempo Ireng can lead to the variation of morphological characteristics; hence, morphological characterization is necessary to determine changes in potential lines. This research aimed to characterize the potential lines as one of the requirements for proposing plant variety release and add black rice genetic diversity information. The research was carried out in the rice fields of Pakahan Village, Jogonalan, Klaten in January-June 2020 with the arrangement of potential lines 8,13 and 44 of M6 in a row. In total 30 plants were selected randomly for each potential line and observed 19 morphological characters. Data analysis was carried out descriptively and qualitatively with the Chi-Square test. The results showed that gamma-ray irradiation affects the characters of leaf angle, auricle color, ligule color, leaf-blade color, leaf surface, panicle type, grain color, apiculus color, and rice length. Potential line 8 had different characteristics compared to non-irradiated Cempo Ireng in the characters of auricle color, leaf-blade color, leaf width, panicle length, grain width, rice length, and rice width, while on potential lines 13 and 44 occur in the characters of the leaf surface and panicle length.


2021 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Sri Hartati ◽  
Prasetyo Prasetyo ◽  
Endang Setia Muliawati

<p>Vanda Orchid is one of the most popular ornamental plants. Orchids have slow growth. One way to overcome this weakness is by using gamma-ray irradiation. This research aimed to study the morphological characters of various radiation doses resulting from the crossing of the Vanda Orchid. This study was carried out by observing the characters of vegetative growth for each plant on 0 Gy, 10 Gy, 20 Gy, 30 Gy, 40 Gy, and 50 Gy doses of gamma irradiation treatments. The observed variables were the increase in plant height, leaf length, root length, number of roots, number of leaves, leaf width, and leaf color. The results showed that the dose of gamma-ray irradiation were able to increase plant height. 10 Gy and 20 Gy, gamma-ray irradiation doses, resulted in discolored yellowing of orchid leaves. The discoloration of orchid leaves to light green occurs at irradiation doses of 30 Gy, 40 Gy, and 50 Gy. The morphological characteristics of <em>Vanda</em> sp. hybrid results gamma irradiation are high at dose 10-40 Gy.</p><p> </p><p>Keywords:<strong> </strong>characteristics; morphological; orchid.</p>


2021 ◽  
Vol 886 (1) ◽  
pp. 012120
Author(s):  
Yelfi Yana Linda Br Jabat ◽  
Rosmayati ◽  
Jonathan Ginting

Abstract Shallots are one of the vegetable commodities that are in demand by the public, but their production does not meet market demand. One of the reasons is the difficulty of suitable seeds for the area. This condition can be overcome by obtaining superior seeds in the Samosir area through irradiation on shallot bulbs. The research objectives were to produce high production, and to identify changes in the morphological and physiological characters of the local Samosir variety shallots. Treatments were arranged in a non-factorial Randomized Block Design. Shallots bulbs were irradiated with several doses of gamma-ray irradiation (0, 1, and 2Gy) using a Co 60irradiation sources. The results showed that there were morphological and physiological differences between the irradiation treatments. The number of leaves with the highest value at 2 Gy 20.147 g and the lowest at 18.894 g control. The heaviest wet weight in the control was 20.355 g and the lowest was at 2 Gy 18.45 g. At 1 Gy and 2 Gy can significantly increase the content of chlorophyll-a 2 Gy 2.484, chlorophyll-b 2 Gy 1.579, and total chlorophyll-(a+b) 2 Gy 4.056. This proves that the dose of gamma-ray radiation affects the morphological and physiological characters of shallots.


2019 ◽  
Vol 20 (2) ◽  
pp. 463-467 ◽  
Author(s):  
EMI SUSILA ◽  
ARI SUSILOWATI ◽  
AHMAD YUNUS

Abstract. Susila E, Susilowati A, Yunus A. 2019. The morphological diversity of Chrysanthemum resulted from gamma ray irradiation. Biodiversitas 20: 463-467. Chrysanthemum is a popular ornamental plant. The high market demand makes breeders develop new cultivars to meet market preferences. One way to get superior varieties of Chrysanthemum is by using gamma ray mutation induction which will increase the morphological variations. The purpose of this study is to determine the Chrysanthemum’s morphological diversity resulted from gamma irradiation through morphological markers. This experimental research used a completely randomized design (CRD) with one factor, i.e. radiation doses: 0 Gy (control), 10 Gy, 15 Gy, and 20 Gy. The observations were carried out qualitatively and quantitatively. The data obtained were analyzed using the SPSS 15.0 and the NTSYS (Numerical Taxonomy and Multivariate Analysis System) 2.02 program. The results showed that increasing the dose of gamma irradiation inhibited plant growth. Irradiation at 10 Gy and 20 Gy produced the most color changes in flowers compared to other doses. The basic color of 0 Gy irradiation is purple. Irradiation at 10 Gy and 20 Gy produced dark purple and deep red. Quantitative data showed that the treatment of gamma ray irradiation significantly affected the leaf length, leaf width, stem diameter, stem length, and diameter of flowers. The irradiation also caused changes in shape and texture of the leaves. The dendrogram showed that 20 Gy irradiation resulted the most diverse morphology compared to the control, 10 Gy and 15 Gy.


1996 ◽  
Vol 11 (3) ◽  
pp. 461-469 ◽  
Author(s):  
C YONEZAWA ◽  
T TANAKA ◽  
H KAMIOKA

1989 ◽  
Vol 12 (2) ◽  
pp. 115-134 ◽  
Author(s):  
DONALD W. THAYER ◽  
JAMES J. SHIEH ◽  
RONALD K. JENKINS ◽  
JOHN G. PHILLIPS ◽  
EUGEN WIERBICKI ◽  
...  

2005 ◽  
Vol 293 (1) ◽  
pp. 106-110 ◽  
Author(s):  
Takuya Kinoshita ◽  
Satoshi Seino ◽  
Yoshiteru Mizukoshi ◽  
Yohei Otome ◽  
Takashi Nakagawa ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document