Different breeding systems

Ebook "Conservation agriculture" is a ready reference on conservation agriculture and reinforces the understanding for its utilization to develop environmentally sustainable and profitable food production systems. The book describes various elements of conservation agriculture; highlights the associated breeding and modeling efforts; analyses the experiences and challenges in conservation agriculture in different regions of the world; and proposes some pragmatic options and new areas of research in this very important area of agriculture.

662p manmanthanhla0201 26-02-2024 3 1   Download

The Nordic Red Cattle consisting of three different populations from Finland, Sweden and Denmark are under a joint breeding value estimation system. The long history of recording of production and health traits offers a great opportunity to study production traits and identify causal variants behind them.

12p vinarcissa 21-03-2023 3 1   Download

Root system architecture, as a complex trait, has gained attention due to climate change and abiotic stress pressure on crops. The incorporation of root traits in breeding objectives may enable new advances in climate-resilient crops. Here, the genetics of the seedling root system architecture in the Synthetic W7984 × Opata M85 Doubled Haploid mapping population was investigated. Three traits at the seedling stage and mature stage root and shoot biomass traits were mapped for quantitative trait loci (QTL) identification.

19p hanthienngao 30-11-2021 11 1   Download

The genus Adonis L. is a member of Ranunculaceae and consists of perennial and annual herbaceous plants included in the tribe Adonideae under the subfamily Ranunculoideae. Botanically, Ranunculaceae comprises vital medicinal plants. Molecular markers are one of the most effective tools for exploring genetic variation that can enhance breeding efficiency. To identify the genetic diversity of 62 Adonis ecotypes collected from different regions in Turkey, the interprimer binding site (iPBS) retrotransposon system was used.

12p tudichquannguyet 29-11-2021 11 1   Download

The detection of signatures of selection in genomic regions provides insights into the evolutionary process, enabling discoveries regarding complex phenotypic traits. In this research, we focused on identifying genomic regions affected by different selection pressures, mainly highlighting the recent positive selection, as well as understanding the candidate genes and functional pathways associated with the signatures of selection in the Mangalarga Marchador genome.

17p vilarryellison 29-10-2021 16 0   Download

Phosphorus (P) is an important in ensuring plant morphogenesis and grain quality, therefore an efficient root system is crucial for P-uptake. Identification of useful loci for root morphological and P uptake related traits at seedling stage is important for wheat breeding.

12p vilichoo2711 23-06-2021 15 2   Download

The study also relies on secondary sources including a wider range of literature given at various levels for its completeness and comprehensiveness. The study revealed different characteristics, management practices and conservation strategies adopted for the Bargur breed. The study helps to understand the role of the breed in eco system stability and thus the importance of the breed conservation.

6p trinhthamhodang11 27-04-2021 9 1   Download

There is a need to diversify CMS lines and restorer lines in different genetic background to create some variation and utilize them in hybrid breeding. Present research efforts were made to enhance the variability in CMS lines through conversion of dwarf four lines viz., Dwarf 30 cm, Dwarf 45 cm, Dwarf 60 cm and Dwarf 90 cm into cytoplasmic male sterility. Variation in the height of the parents will help in identifying the out crossed seeds from CMS and selfed-seeds from the hybrid populations.

10p cothumenhmong9 18-01-2021 10 1   Download

This study was conducted to evaluate the production performance of TANUVAS Aseel in Western Zones of Tamil Nadu. 150 Day old TANUVAS Aseel chicks were obtained from TANUVAS-CPPM, Hosur and distributed to farmers in different blocks of Erode district. Body weight and Egg production parameters were recorded in farmer’s field at weekly interval upto 72 weeks of time.

4p trinhthamhodang9 16-12-2020 10 2   Download

The present study was conducted to evaluate the production performance of improved varieties like Gramapriya and Vanaraja under field condition in intensive system of rearing. Both the breeds were evaluated for production performance parameters like weekly body weight, feed consumption and feed conversion ratio from 0 to 8 weeks of age. Vanaraja birds showed significantly higher body weight than Gramapriya from 1 to 8 weeks of age. Feed consumption and feed conversion ratio showed no significant difference between the birds.

4p trinhthamhodang1215 23-09-2020 14 1   Download

The objective of this work was to study the different breeding systems, seed viability and seed germination in four nerium Cultivars (Nerium oleander L.). Different breeding systems like natural open pollination, autogamy, controlled pollinations and geitenogamy were studied in two seasons. In both the season of pollination no fruit set was observed in autogamy. In case of natural open pollination both the season of pollination up to five per cent of fruit set was observed in nerium cultivars.

11p nguathienthan5 04-06-2020 7 1   Download

The objective of the study was to evaluate effects of 3 different diets and 3 different live food stocking densities on cobia fingerling rearing in composite tanks system in the Ninh Thuan 1st grade Seafood Breeding Center from 6 - 25 days old.

9p tomhiddleston 25-05-2020 9 1   Download

The study was conducted to compare the production performance of Gramariya, Vanaraja, Haringhata Black and Rhode Island Red chickens in intensive condition. The study was undertaken in Murshidabad Krishi Vigyan Kendra of West Bengal state with respect to live body weight in different age, age at sexual maturity, average weight at first egg, average egg production up to 72 weeks of age and average egg weight at 40 weeks. The average body weight at onset of laying of Vanaraja birds was 1747.8 g which was highest than other breeds.

5p chauchaungayxua5 08-05-2020 13 0   Download

This article focuses and reviews on the seed enhancement techniques in oilseeds, and highlights of new developments that may provide even more benefits in the future. Oilseed crops are grown primarily for the oil contained in their seeds. Oilseeds are rich in protein, the proteins in oilseeds can be fed either as part of the oil-intact seed, or as a meal from which the oil has been removed. Major objectives in oil crop improvement are enhancement of seed and oil yield, quality of oil according to its use, i.e.

9p quenchua4 06-04-2020 23 1   Download

Hybrid breeding in Brassica juncea is suggested as the best strategy to boost rape seed mustard production in India. Diversified male sterile and restorer lines are required for a strong sustainable hybrid breeding programme. Knowledge about the inheritance of male sterile and restorer genes are essential for this. We studied the genetics of fertility restorer gene which can restore the fertility in three different male sterile systems(mori, eru and ber)in B.juncea using nine different BC1F1 populations.

9p caygaocaolon3 09-03-2020 12 0   Download

A study was conducted to assess the Performance of Different Breeds which includes Gramapriya, TANUVAS Aseel and Srinidhi under Backyard Poultry farming System in Erode district by covering 30 backyard poultry farmers in T.N.Palayam, Gobi and Anthiyur block of Erode district, Tamil Nadu. Information was obtained on mean body weight at various ages, age at first egg, annual egg production and mortality rate. The result indicated that Gramapriya showed better annual egg production and Srinidhi gained better body weight at 20 th week when compared to other strains.

4p caygaocaolon3 09-03-2020 12 2   Download

The genetic analysis was carried in a 6x6 half diallel breeding programme of common bean for thirteen yield and yield attributing parameters. Both additive and non-additive genetic components were responsible in the genetic system controlling yield and its component characters. The additive (D) genetic variance was significant for Days to first flowering, Days to fifty per cent flowering, Days to maturity and pod length.

6p chauchaungayxua3 07-02-2020 15 1   Download

Cotton (Gossypium spp.) is one of the important commercial crops grown for its natural fibre, which has its own place among many other natural and synthetic fibres. Among the commercial crops grown in India, cotton occupies a pride place of being the prime supplier of raw material (85%) for textile industry, which is one of the leading industries in the country. In India, cotton provides means of livelihood for about 60 million people through its cultivation, trade and industrial use. Exploitation of heterosis has lead to improvement in productivity of different crops including cotton.

7p nguaconbaynhay3 07-02-2020 22 0   Download

Nitrogen is one of the most important mineral nutrients required for plant development especially for tillering and vegetative growth. Management of nitrogenous fertilizers poses a significant challenge in sugarcane cropping system as the efficiency of utilization of nitrogen is very poor. Improving the Nitrogen Use Efficiency (NUE) is imperative to achieve the maximum cane yield with less N inputs.

12p nguaconbaynhay3 07-02-2020 12 0   Download

The aim of the present study was to evaluate blood copper (Cu), zinc (Zn), Iron (Fe) and Manganese (Mn) status of healthy goats (209) managed under semi intensive system in the three different agro-climatic zones of Punjab. For this purpose, two hundred nine blood and hair samples of various breeds of goats were taken. The samples were analyzed for trace minerals by using atomic absorption spectrophotometer (AAS) and the prevalence was recorded. Plasma Cu, Zn and Mn concentrations were significantly (P≤0.05) different among the three zones. The mean plasma Cu (0.57 ± 0.

6p nguathienthan2 26-12-2019 16 0   Download