An Evaluation of the Effects of Exogenous Ethephon, an Ethylene Releasing Compound, on Photosynthesis of Mustard (Brassica juncea) Cultivars that Differ in Photosynthetic Capacity

2016 ◽  
pp. 79-88
Keyword(s):  
Brassica Juncea ◽  
Photosynthetic Capacity

Response of two mustard (Brassica juncea L.) cultivars differing in photosynthetic capacity subjected to proline

PROTOPLASMA ◽  
2011 ◽  
Vol 249 (1) ◽  
pp. 75-87 ◽  
Author(s):  
Arif Shafi Wani ◽  
Mohammad Irfan ◽  
Shamsul Hayat ◽  
Aqil Ahmad
Keyword(s):  
Brassica Juncea ◽  
Photosynthetic Capacity

Chlorophyll changes, photosynthesis, and ultrastructure of chloroplasts in Albugo candida induced "green islands" on detached Brassica juncea cotyledons

1968 ◽  
Vol 46 (10) ◽  
pp. 1229-1234 ◽  
Author(s):  
Howard Harding ◽  
Paul H. Williams ◽  
Sharon S. McNabola
Keyword(s):  
Chlorophyll Content ◽  
Brassica Juncea ◽  
Photosynthetic Activity ◽  
Photosynthetic Capacity ◽  
Soluble Fraction ◽  
Albugo Candida ◽  
Chlorophylls A And B ◽  
Stroma Lamellae ◽  
Green Island

Brassica juncea cotyledons were detached from the plant 3 days after inoculation with Albugo candida. Changes in chlorophyll content of infected and noninfected tissue were determined over a 4-day period, during which time distinct "green islands" developed. Following incubation with glycine-2-14C in the light, radioactivity was detected in chlorophylls a and b of both infected and noninfected tissue. Both infected and noninfected tissue fixed 14CO2 in the light during the 4 days after detachment. Most of the incorporated activity was in the 70% ethanol-soluble fraction. At 4 days after detachment, "green islands" fixed 5 times more 14CO2 in the light than noninfected tissue while both types of tissue fixed about the same amount in the dark. Photosynthesis per mole of chlorophyll fell at the same rate in "green island" and noninfected tissue. The maintenance of chlorophyll and continued photosynthetic activity in "green islands" paralleled delayed chloroplast breakdown. "Green island" chloroplasts still had intact grana and relatively small osmiophilic globules 96 h after detachment. In noninfected tissue, grana began to break down and osmiophilic globules increased in size 48 h after detachment. At 96 h after detachment, little grana structure remained and chloroplasts contained greatly enlarged osmiophilic globules interspersed with strands of stroma lamellae. Tissue treated with kinetin responded in essentially the same way as "green island" tissue. Chlorophyll content and photosynthetic capacity were maintained and chloroplast breakdown was delayed.

Changes in growth and photosynthetic capacity of rice with increased UV-B radiation

1991 ◽  
Vol 83 (3) ◽  
pp. 373-380 ◽  
Author(s):  
Alan H. Teramura ◽  
Lewis H. Ziska ◽  
A. Ester Sztein
Keyword(s):  
Photosynthetic Capacity

Die GaterslebenerBrassica-Kollektion –Brassica juncea, B. napus, B. nigra undB. rapa

1992 ◽  
Vol 103 (7-8) ◽  
pp. 469-507 ◽  
Author(s):  
Th. Gladis ◽  
K. Hammer
Keyword(s):  
Brassica Juncea

Variabilitas Genetik dan Heritabilitas Karakter Agronomi Galur-Galur Sawi (Brassica juncea L.)

2019 ◽  
Vol 3 (2) ◽  
pp. 73-83
Author(s):  
Raihan Fadhil Muhammad ◽  
Budi Waluyo
Keyword(s):  
Brassica Juncea ◽  
Seed Bank ◽  
Augmented Design

Penelitian ini bertujuan untuk mempelajari variabilitas genetik, heritabilitas, dan menyeleksi penampilan genotipe karakter agronomi unggul pada 57 galur sawi untuk digunakan dalam bahan baku konsumsi dan industri. Penelitian ini dilaksanakan di Seed Bank and Nursery, Agrotechno Park Universitas Brawijaya, Desa Jatikerto, Kecamatan Kromengan, Kabupaten Malang pada bulan Desember 2018 – April 2019. Metode yang digunakan untuk penelitian ini adalah rancangan acak kelompok diperluas (augmented design). Perlakuan yang diberikan adalah 60 genotipe sawi yang terdiri dari 57 genotipe yang diuji dan 3 varietas sebagai cek. Genotipe yang diuji akan disebar kedalam 5 blok, sedangkan tiga varietas cek akan ditanam pada setiap blok, sehingga terdapat 72 satuan percobaan. Variabel pengamatan karakter agronomi terdiri dari 15 karakter kualitatif dan 24 karakter kuantitatif. Variabilitas yang luas terdapat pada karakter biji per polong, jumlah polong per tanaman, dan berat segar. Heritabilitas tinggi terdapat pada karakter panjang kotiledon, jumlah daun konsumsi, berat segar, umur panen benih, jumlah polong per tanaman, panjang polong, lebar polong, dan jumlah biji per polong. Terdapat galur-galur sawi yang mempunyai karakter unggul untuk bahan baku konsumsi dan industri.

Agronomic performance of autumn- and winter-cropped Indian mustard (Brassica juncea L.) in response to varying levels of nitrogen fertiliser

2020 ◽  
pp. 83-95
Author(s):  
Bent Al-Hoda Asghari ◽  
Mohsen Yousefi ◽  
Katarzyna Możdżeń ◽  
Joanna Puła ◽  
Peiman Zandi ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Seed Yield ◽  
Agronomic Traits ◽  
Growth Parameters ◽  
Indian Mustard ◽  
Climatic Conditions ◽  
Plant Seed ◽  
Nitrogen Fertiliser ◽  
Nitrogen Levels ◽  
Cropping Seasons

Indian mustard (Brassica juncea L. Czern) cultivation is suggested for regions with short seasons and low rainfall. Although there have been many studies conducted on agronomic production of mustard in Iran, the information regarding the interactive impact of cropping seasons and nitrogen fertiliser on growth characteristics and yield quality of mustard plant is still insufficient and requires further investigation. This study focused on the possible implications of different cropping seasons and different nitrogen levels on selected agronomic traits in mustard. In this experiment, five different doses of nitrogen and two sowing periods were used to assess for their combined effects on the growth parameters, seed yield and agronomic characteristics of mustard in the semi-arid climatic conditions of Takestan. The results revealed that cultivation seasons and nitrogen rates had a significant effect on plant height, biomass yield, number of siliques per plant, seed oil content and seed yield.

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