PENGARUH PEMANGKASAN KUNCUP APIKAL  TERHADAP PRODUKSI BIJI  DAN KADAR KLOROFIL  DAUN ALFALFA (Medicago sativa L)

Alfalfa plant in Indonesia its not easy to produce flowers and seeds. Flower production is also affected by cutting the apical bud. At this time there is no research on the effect of cutting the length of the apical bud of the flower and seed production of alfalfa, both in quantity and quality. Thus this study examines the apical bud cutting the length of the seed production and alfalfa leaf chlorophyll content. The purpose of this study was to determine the most optimal length of the apical bud cutting to produce optimal growth and production of alfalfa seed. Outcomes and benefits of this research are: a). Provide information for other researchers on seed production and alfalfa leaf chlorophyll content were treated with different apical bud cutting, which will carry out further research. b). Provide recommendations to stakeholders on the apical bud cutting the most optimal for alfalfa plants that produce highest seed production and alfalfa leaf chlorophyll content. c). Providing information for farmers and researchers on alfalfa seed development opportunities for the tropic zone. Research using randomized complete block design with four replications. This study was a single-center trial with a treatment of various lengths cutting apical bud. Apical bud cutting long treatment include without cutting, cutting apical bud length of 5 cm, 10 cm, 15 cm, 20 cm and 25 cm from the ground. When cutting is done when the plants aged 6 weeks after planting. The results of the study showed that the alfalfa plant leaf extract can be produced which is solid green chlorophyll that has the potential to be used as raw material for the manufacture of supplement health drinks. Alfalfa flower has emerged in the 4th month, this occurred in the treatment of cutting 5 cm. It shows the probability that the flower has the potential to develop into seeds. Keywords: alfalfa, cutting, chlorophyll, seeds, apical bud

Download Full-text

Respon Pertumbuhan Jagung (Zea mays) Dengan Pemberian Urea Bersalut Zeolit Sebagai Nitrogen Lepas Lambat

bionature ◽

10.35580/bionature.v18i2.6146 ◽

2018 ◽

Vol 18 (2) ◽

Author(s):

Nur Aina ◽

Oslan Jumadi ◽

St. Fatmah Hiola Hiola

Keyword(s):

Zea Mays ◽

Chlorophyll Content ◽

Seed Weight ◽

Plant Biomass ◽

Block Design ◽

Leaf Nitrogen ◽

Leaf Chlorophyll Content ◽

Leaf Chlorophyll ◽

Randomized Block Design ◽

Analysis Technique

Abstract. This study is an experimental research that aims to find out how the response of corn growth (Zea mays) with urea-coated zeolite as nitrogen release slowly, implemented from April to December 2017. The making of fertilizer is done in Biology Laboratory of East III Floor Department of Biology Faculty of Mathematics and Natural Sciences of Makassar State University. The cultivation and maintenance of maize was conducted at Greenhouse of Ecophysiology of Seraca Crops Research Institute (Balitsereal) Maros and Analysis of nitrogen data at Soil Laboratory of Agricultural Technology Assessment Institute (BPTP) Regency. Maros South Sulawesi. This research used Randomized Block Design (RAK) 3 grouping with Control, Urea, Phosphate, Potassium (UPK), UPK Zeolite 10%, UPK Zeolit 30%, and UPK Zeolit 50%. The corn variety used was HJ 21 Agritan. Observation parameters were stem circumference, leaf chlorophyll content, plant biomass (root, stem and leaves), cob weight, ear length, seed weight, leaf nitrogen and seed nitrogen. The technique of data origin is done by using variance analysis technique (F test) / ANOVA at the level of trust α = 0,05%. Then proceed with Duncan's advanced test using SPSS statistic program 20. The results showed that there was an interaction between zeolite-coated urea fertilizer on the yield of cob and corncob with different results on the other treatment. The best results on urea-coated zeolite treatment with 10% concentration. While for stem circumference, leaf chlorophyll content, plant biomass (root, stem and leaf), seed weight, leaf nitrogen and seed nitrogen showed no effect but when viewed the average result of urea coated application of zeolite with the highest 30% concentration.Keywords: The growth of corn, the application of urea zeolite coated, slow release fertilizersp., Thalassiosira sp., Probiotic Bacteria

Download Full-text

Residual Effect of Herbicides Applied in Unpuddled Transplanted Aman Rice on The Succeeding Crops Assessed by Bioassay Technique

Bangladesh Agronomy Journal ◽

10.3329/baj.v19i2.31858 ◽

2017 ◽

Vol 19 (2) ◽

pp. 95-103 ◽

Cited By ~ 1

Author(s):

Taslima Zahan ◽

Md Moshiur Rahman ◽

Mahfuza Begum

Keyword(s):

Chlorophyll Content ◽

Weed Management ◽

Dry Matter ◽

Management Practice ◽

Block Design ◽

Residual Effect ◽

Shoot Length ◽

Leaf Chlorophyll Content ◽

Leaf Chlorophyll ◽

Bioassay Technique

The residual effect of eight herbicides (pendimethalin, pyrazosulfuron-ethyl, butachlor, pretilachlor, orthosulfamuron, acetochlor + bensulfuron methyl, butachlor + propanil and 2,4-D amine) was applied in unpuddled transplanted aman rice in aa weedy and a hand weeded controls, was evaluated for succeeding crops viz. wheat, lentil and sunflower by following bioassay technique. A study was conducted at Bangladesh Agricultural University, Mymensingh from November 2013 to January 2014 after harvest of unpuddled transplanted aman rice. All herbicides were imposed as weed management practice of unpuddled transplanted aman rice during July to August 2013. The experiment was laid out in a randomized complete block design (RCBD) with three replications. As a consequence, the residual effect of those herbicides on the succeeding wheat, lentil and sunflower crops was evaluated in term of germination, leaf chlorophyll content, seedling shoot length and dry matter. The results showed that seedling germination of all these succeeding crops in the herbicide treated plots did not differ significantly from those of weedy and hand weeded control plots. Moreover, leaf chlorophyll content, seedling shoot length and dry matter of wheat, lentil and sunflower were not adversely affected by any of the herbicide treatments imposed in aman rice. It was concluded that herbicides used in unpuddled transplanted aman rice had no residual effect on the germination and leaf chlorophyll content, seedling shoot length and dry matter of the succeeding wheat, lentil and sunflower crops.Bangladesh Agron. J. 2016 19(2): 95-103

Download Full-text

The applicability of empirical vegetation indices for determining leaf chlorophyll content over different leaf and canopy structures

Ecological Complexity ◽

10.1016/j.ecocom.2013.11.005 ◽

2014 ◽

Vol 17 ◽

pp. 119-130 ◽

Cited By ~ 68

Author(s):

H. Croft ◽

J.M. Chen ◽

Y. Zhang

Keyword(s):

Chlorophyll Content ◽

Vegetation Indices ◽

Leaf Chlorophyll Content ◽

Leaf Chlorophyll

Download Full-text

RIL-StEp: epistasis analysis of rice recombinant inbred lines (RILs) reveals candidate interacting genes that control seed hull color and leaf chlorophyll content

G3 Genes|Genome|Genetics ◽

10.1093/g3journal/jkab130 ◽

2021 ◽

Author(s):

Toshiyuki Sakai ◽

Akira Abe ◽

Motoki Shimizu ◽

Ryohei Terauchi

Keyword(s):

Chlorophyll Content ◽

Recombinant Inbred ◽

Complex Traits ◽

Genetic Architecture ◽

Recombinant Inbred Lines ◽

Inbred Lines ◽

Gene Interactions ◽

Leaf Chlorophyll Content ◽

Leaf Chlorophyll ◽

Seed Hull

Abstract Characterizing epistatic gene interactions is fundamental for understanding the genetic architecture of complex traits. However, due to the large number of potential gene combinations, detecting epistatic gene interactions is computationally demanding. A simple, easy-to-perform method for sensitive detection of epistasis is required. Due to their homozygous nature, use of recombinant inbred lines (RILs) excludes the dominance effect of alleles and interactions involving heterozygous genotypes, thereby allowing detection of epistasis in a simple and interpretable model. Here, we present an approach called RIL-StEp (recombinant inbred lines stepwise epistasis detection) to detect epistasis using single nucleotide polymorphisms in the genome. We applied the method to reveal epistasis affecting rice (Oryza sativa) seed hull color and leaf chlorophyll content and successfully identified pairs of genomic regions that presumably control these phenotypes. This method has the potential to improve our understanding of the genetic architecture of various traits of crops and other organisms.

Download Full-text