Agricultural Science Commons^™

Establishment And Early Growth Of Improved Brachiaria Cultivars In Different Agro-Ecological Zones Of Kenya, Donald M. G. Njarui, Clotilda O. Nekesa, Elkana Nyambati, Mwangi Gatheru, Sita R. Ghimire, Joseph G. Mureithi

IGC Proceedings (1977-2023)

Livestock feed scarcity is a salient feature in East Africa (Njarui et al., 2011) and it is a major constraint to livestock productivity particularly during the dry seasons. The recent interest in livestock development in Kenya fueled by rising demands of animal products has led to research in identifying drought tolerant, productive and persistence forages to support livestock productivity. Brachiaria grasses have shown a great potential in South America and Australia as livestock feed. It is the most widely cultivated forage in tropical America, with estimated acreage of 99 million hectares in Brazil alone (Jank et al., 2014), …

Salinity Tolerance Of Forage Range Legumes During Germination And Early Seedling Growth, D. Sevanayak, A. Edna, R. V. Koti, M. B. Doddamani, D. Deb

IGC Proceedings (1977-2023)

Salinity is one of the rising problems causing tremendous yield losses in many regions of the world especially in arid and semiarid regions. In India, about 5.95M ha areas were affected by salinity. Five states viz. Haryana, Punjab, Rajasthan, Gujarat and Andhra Pradesh accounts for 48% of the total salt affected soils of the country. Establishment of seedlings at early growth stages of crop plants as one of the most important determinants of high yield is severely affected by soil salinity. Increasing salinity levels significantly decreased germination parameters, shoot and root length, shoot and root fresh and dry weights …

Evaluation Of Tropical Herbaceous Legumes For Drought Resistance In Myanmar, Jue Jue, Nang Khan Hline, Khin San Mu, Moe Thida Htun, Lwin Naing Oo, Soe Min Thien, Dezin Soe Lwin, Jenny Hanks, Ganda Nakamanee, Werner Stür, Aung Aung

IGC Proceedings (1977-2023)

Animal nutrition systems in the tropical and subtropical countries utilize a wide range of feedstuffs, mainly the crops and agricultural by-products, grasses, legumes, trees and shrubs. During the dry season, the crude protein concentration in the native grasses can drop below 3% crude protein (Atta-Krah and Reynolds, 1989). Fodder tree is not sufficient and is of low quality in Myanmar (Myo and Aye, 2007). Shrubs represent an enormous potential source of protein for ruminants in the tropics (Devendra, 1992). Browses are rich in nitrogen and minerals which are low in other conventional feeds of tropical regions. Herbaceous legume species play …

Ability Of Three Temperate Grasses To Compete With Phalaris Arundinacea L., Hideki Okamoto, Kazuyoshi Oka, Keiji Oshiro, Keiya Yoshikawa, Masanobu Takahashi, Mieko Adachi

IGC Proceedings (1977-2023)

Weeds with rhizomes have become an ever-increasing problem in the grasslands of Hokkaido in northern Japan. Many meadows in the Tenpoku region, located in the northernmost part of Hokkaido, have been invaded by Phalaris arundinacea L., a grass with aggressive colonising ability known as the primary and most difficult to control weed in the Tenpoku region. However, dairy farmers in the grasslands of the Tenpoku region most commonly cultivate Phleum pratense L., in spite of its low competitive ability. The Tenpoku region frequently experiences years of low rainfall or drought, but P. pratense has low tolerance to drought (Okamoto et …

Photosynthesis And Biomass Studies In Lasiurus Sindicus Of Chandan Grassland In Thar Desert, P. Raja, Maharaj Singh, Nilendu Singh, Nawalesh Kumar Sinha

IGC Proceedings (1977-2023)

Grasslands comprise about one third of the world’s area of natural vegetation (Adams et al., 1990). Uncertainties prevail in the arid ecosystem with reference to carbon balance and fluxes which are primarily attributed to the sensitivity of grasslands to variation in annual precipitation, temperature and other regulating mechanisms of eco-physiological processes (Flanagan et al., 2002). It is therefore necessary to study radiation and water use efficiency of Lasiurus sindicus which is a predominant grass species in Chandan grassland of Thar desert to understand and evaluate its growth in relation to variation in climate. Also, it is pertinent to resolve …

Routes Of Dicyandiamide Uptake In Pasture Plants: A Preliminary Laboratory Study, Pranoy Pal, Andrew M. S. Mcmillan, Surinder Saggar

IGC Proceedings (1977-2023)

A consequence of intensification of New Zealand pastures is increased nitrogen (N) inputs to the soil in the form of urine, dung and mineral fertiliser. Dairy cow urine has a high N content that causes large N losses from the grazed system via nitrate (NO₃^-) leaching, nitrous oxide (N₂O) emissions and ammonia volatilization. Dicyandiamide (DCD) is a nitrification inhibitor that has been proven to reduce NO₃^- leaching and N₂O emissions, and increase pasture in New Zealand pastures (De Klein et al., 2014). DCD was commercially available for use in New …

Efficacy Of Current Breeding Programs To Improve North American Native Grass Species For Forage And Conservation Use In The South Eastern United States, Jesse Ira Morrison, Brian Baldwin

IGC Proceedings (1977-2023)

North American native warm-season grasses (NWSG) have received much attention over the last 25 years for their ability to persist under hot, dry conditions and thrive in marginal soils. Native warm season grasses are believed to have been growing on the central and south eastern plains of the United States since the Holocene era (between 11,500 and 2,000 years BP) thus the Southeast is the centre of diversity for these grasses (Casler, 2012). Modern production of many species has been slow to evolve due to inherent dormancy characteristics that hinder germination and establishment. With increased research, many species have shown …

Selection Of Suitable Varieties Of Grasses For Myanmar, Nang Khan Hline, Khin San Mu, Moe Thida Htun, Lwin Naing Oo, Soe Min Thien, Dezin Soe Lwin, Jue Jue, Aung Aung, Jenny Hanks, Werner Stür, Ganda Nakamanee

IGC Proceedings (1977-2023)

The basal feed resources for ruminants available in most developing countries in the tropics are crop residues, pasture from infertile land, for example communal land, or agro-industrial by-products. These are low in protein and of low digestibility. A major problem facing livestock producers in tropical areas is proper nutrition for their animals during the dry season when pastures, cereal residues and maize stover are limiting in nutritional quality. The researchers in Myanmar have tried to improve the nutritive value of fibrous agricultural residues. Aung Aung et al. (2006) supplemented the sesame and chickpea husk to bulls fed on urea-treated …

Light Dependent Morpho-Physiological Changes And Yield Response Of Hybrid Napier Cultivars Under Rainfed System, Savitha Antony, C. George Thomas

IGC Proceedings (1977-2023)

For small dairy farmers in the tropics, open land for fodder cultivation is often limited because of the predominance of tree crops and paddies. Probably because of this limitation, to offset fodder supply for the livestock, growing fodder crops under tree crops such as coconut is a widely prevalent practice in the tropics. However, successful establishment and growth of most fodder crops especially high yielding types such as hybrid napier under shade depends on the amount of light available and the consequent morpho-physiological responses of the crops.

S Nutrition Is Involved In Alleviation Of Damage Of Photosynthetic Organelles By Salt Stress In Kentucky Bluegrass (Poa Pratensis L.), Sang-Hyun Park, Bok-Rye Lee, Tae-Hwan Kim, Se-Jong Oh

IGC Proceedings (1977-2023)

Salt-stress is considered as one of the major environmental factor limiting plant growth and productivity. It has been well reported that salt stress induce the reduction of stomatal density and number leading to poor gaseous exchange which resulted in decrease of photosynthesis is associated with inhibition of several enzymes related to the Calvin cycle such as RuBisCo. In addition, salt stress decreases photosynthetic pigments such as chlorophyll and carotenoid which has important role in photosynthesis.

Sulfur (S) is one of six macronutrients needed for proper plant growth and development. In our previous work, we found that sulfur nutrition has significant …

Fodder Productivity Of Different Genotypes Of Cenchrus Ciliaris Under Hot Arid Climate Of Thar Desert, M. P. Rajora, R. K. Bhatt, S. K. Jindal, C. S. Shantharaja

IGC Proceedings (1977-2023)

Indian arid zone occupies about 31.7 million ha of land, of which 62% lies in western Rajasthan. The climate of the area is typically arid, characterized by hot dry summers, sub-humid monsoon and cold dry winters. The soils are coarse loamy sand with low level of nutrients. These factors render cropping an undependable proposition, while animal husbandry remains the main stake of the local people. Lasiurus sindicus, Cenchrus ciliaris, C. setigerus, Panicum antidotale, P. turgidum and Cymbopogon spp., are the main perennial grasses grow in this area. These grasses had three folds advantages in the arid agricultural economy, …

Performance Of Guinea Grass Variety Jhgg-08-1 In Southern Region Of Karnataka, M. R. Krishnappa, B. G. Shekara, H. C. Lohithaswa, N. M. Chikkarugi, N. Manasa

IGC Proceedings (1977-2023)

Guinea grass (Panicum maximum) is native to Africa but this grass was introduced to almost all tropical countries as a source of animal forage. It grows well on a wide variety of well drained soils of good fertility and it is suitable for vegetative barrier and conservation of soil. It can survive quick moving fires which does not harm the underground roots and drought because of the deep, dense and fibrous root system. The Potentiality of the varieties varies with agro climatic situation and soil type. Keeping these things in view, the present investigation was taken up to …

Agro-Climatic Aptitude For Tanzania Guinea Grass Cultivation In Brazilian Semiarid Environment, Ana Clara Rodrigues Cavalcante, Nailson Lima Santos Lemos, Thieres George Freire Da Silva, Patricia Menezes Santos, José Ricardo Macedo Pezzopane, Magno José Duarte Cândido

IGC Proceedings (1977-2023)

Tanzania guinea grass is a forage plant recognized in Brazil and part of Latin America due to high forage production in intensive production systems (Jank et al., 2010). In irrigation conditions, this plant has also shown excellent performance in semiarid areas. In general, this grass develops well in regions with above 700 mm rainfall, medium texture soils and good fertility, and the main limitation for its production in the tropics is the rainfall (Jank et al., 2010).

Future scenarios point to temperature increases, directly impacting evapotranspiration, and there are also many uncertainties in relation to precipitation, with studies …

Brachiaria Hybrids With Larger Root Length Densities Show Greater Shoot Vigor Under Drought, Juan De La Cruz Jimenez, Idupulapati M. Rao, Juan A. Cardoso, Margaret Worthington, John W. Miles

IGC Proceedings (1977-2023)

Brachiaria grasses are the most widely planted forages in Tropical America, and their demand is increasing across Africa and South-East Asia. One of the most limiting factors affecting productivity of Brachiaria forage grasses is seasonal drought. Genotypic variation for drought resistance has been found among Brachiaria forage grasses, making possible to genetically improve the productivity of Brachiaria forage grasses under water-limiting conditions (Rao, 2014). The ongoing Brachiaria breeding program at the International Center for Tropical Agriculture (CIAT) has been developing and testing Brachiaria hybrids that combine resistance to biotic constraints with adaptation to abiotic stresses such as drought.

Adaptation to …

Drought Effect On Yield Of Forages Grass Species, Michal Kvasnovský, Pavel Knot, Lucia Hodulíková, Iva Klusoňová

IGC Proceedings (1977-2023)

Climate change (rising temperatures, lengthening of the growing season, increasing evaporation) significantly affects agricultural production in traditional production areas of Central Europe, as illustrated by example better results in growing of corn on its northern or upper height limit. Changes in the amounts and timing of rainfall events will probably affect ecosystem processes, including those that control carbon (C) cycling and storage. In relation to the ongoing global warming, it is desirable to test resistance of grass species to a lack of moisture. Seasonal variation in precipitation and temperature are important controls of soil and plant processes in grasslands. (Fiala …

Genetic And Multilocation Evaluation Of High Yielding Provenances Of Bhimal (Grewia Optiva) On Farmers’ Fields In North Western Himalayas, Harsh Mehta, M. Ayoub Dar, Debashis Mandal, Rajesh Kaushal, A. C. Rathore, O. P. Chaturvedi, P. K. Mishra

IGC Proceedings (1977-2023)

Agroforestry is the inclusion of woody perennial within farming systems, has been practiced as a traditional land use and livelihood option since time immemorial (FSI 2013). It is being practiced on agricultural lands for fuel wood and fodder (Khybri et al., 1992), as well as medicinal and fruit trees (Bijalwan, 2011; Rathore et al., 2014) enabling food security (Narain 1998), non timber forest products, timber and shelter etc. A number of different (185) agroforestry systems are popular among farmers in different agro-climatic regions (Solanki, 2006). Grewia optiva Drummond (Bhimal) is an important agroforestry tree species primarily grown for …

The Results Of Breeding Perennial Grasses: The Evaluation Of Developed Dactylis Glomerata Hybrids, Sarmite Rancane, P. Berzins, B. Jansone, Vija Stesele, I. Dzene, A. Jansons

IGC Proceedings (1977-2023)

Perennial grasses are high yielding, pest resistant and less demanding in terms of soil (Peeters, 2008), they are the most important source of roughage. Each species has certain valuable features that make it unique among others and which are desirable to be highlighted for ensuring high productivity, good forage quality, plasticity, strength of various stress conditions, as well as winter hardiness, which is particularly important characteristic of northern latitudes. It is the main task of breeders, as far as possible to combine all the aforesaid properties into one breed. In order to create such a universal variety the breeders of …

Forage Rye Cultivars For Animal Feed In Korea, Ouk-Kyu Han, Jong-Jin Hwang, Hyeong-Ho Park, Tae-Il Park, Ja-Hwan Ku, Young-Up Kwon, Soon-Jong Kwoen, Kwang-Geun Park

IGC Proceedings (1977-2023)

Rye (Secale cereal L.) is well known for its overwintering ability and has the highest tolerance to cold temperature of the small grain cereals such as wheat, barley, and oat. Rye is used as livestock pasture and as green manure in Korea, and its cultivation area for fodder is about 50,000 ha in 2014. Most rye is grown as a fall-sown annual crop, generally called “winter rye”. In Korea, rye cultivation for whole crop silage (WCS) in the winter-season rice field can be considered as a promising way to enhance feed supply. The WCS production can be an efficient …

Breeding Strategies For Improving Fodder Security In Semi-Arid Tropics (Sat), Vijay Kumar Yadav, P. Kaushal, P. K. Ghosh

IGC Proceedings (1977-2023)

Semi-Arid Tropic region extends in 55 countries of the world mostly developing nations which extend from Asia to Africa and provides home for 38 % of total poor of the world (Thornton et al., 2000). South Asia holds maximum areas under SAT which is followed by the countries from African continent and South America. The region is under tremendous change and facing acute problem of water, land degradation and soil health and loss of biodiversity. Demand for livestock product in the region is growing much more rapidly than the demand for food grains. Livestock numbers have increased significantly in all …

Identification Of Oat (Avena Sativa L.) Varieties For Prolonged Green Fodder Production Under Central India Conditions, Shweta

IGC Proceedings (1977-2023)

India is now highest milk producer in the world and state of Uttar Pradesh is largest milk producer in the country. The state is also home to highest number of cattle population in the country. Besides all these facts, state is facing acute shortage of green fodder especially during lean period (March-June). During these periods milk production is substantially reduced and cost of feeding increases. Thus the biggest challenge for cattle keeping and fodder management is to provide cheaper source of nutritious feeding during the period. The challenge can be met with combination of extending period of green fodder from …

Yield And Yield Component Development In Dual-Purpose Barley, A. K. Singh, Pradeep Saxena

IGC Proceedings (1977-2023)

Barley (Hordeum vulgare L.) is a widely adapted small-grain annual cereal and is a key feed and fodder in India (Kharub et al., 2013). Barley can provide nutrition to the animals through its green fodder at vegetative stage and grains after harvest from the regenerated plants. The vegetative portion of the crop is valuable as a source of pasture, cut green forage, and straw. Their relative importance is determined at different ontogenetic stages of plant. An area of barley breeding receiving increasing attention is the development of dual-purpose (green forage and grain) varieties for plains as well as …

Cytological Investigations Of Cowpea (Vigna Unguiculata (L.) Walp) And Sem (Lablab Purpureus (L.) Sweet) Two Major Fodder Legumes, Gitanjali Sahay, Pooja Shukla

IGC Proceedings (1977-2023)

Indian subcontinent is one of the world’s mega-centres for crop plant diversity as it has a wide spectrum of eco-climate ranging from humid tropical to semi-arid, temperate to alpine. The Indian gene centre possesses rich genetic diversity for forage legume genera as well. Germplasm characterisation and documentation is a major activity of conserving genetic resources, in this direction germplasm accessions were characterized for morphological and agronomic traits in batches over the years. The relative basic information on cytological characterization of two major forage legume genera Cowpea (Vigna unguiculata (L.) Walp) and Sem (Lablab purpureus (L.) Sweet) is not …

Genetic Analysis Of Some Morphological Traits In Egyptian Clover (Trifolium Alexandrinum L.), Tejveer Singh, D. R. Malaviya, P. Kaushal

IGC Proceedings (1977-2023)

Trifolium alexandrinum, commonly known as Berseem or Egyptian clover (2n=2x=16) is an important winter forage legume in India, Pakistan, Turkey, Egypt and Mediterranean region. It is characterized by three ecotypes viz; Mescavi, Fahli and Saidi. Amongst these, Mescavi type is most popular. In India it is cultivated in about 2 million hectare area.

The major impediment in genetic improvement of berseem is the lack of appreciable genetic variability (Verma and Mishra, 1995; Roy et al., 2004; Malaviya et al., 2005). Although limited, variability for desirable traits at intraspecific (T. alexandrinum var Fahli and var Saidi) …

Performance Of Dual Purpose Maize Line For Grain, Green Fodder, Stover Yield Under The Semi-Arid Condition, Shahid Ahmed, R. P. Sah, D. R. Malaviya, Pradeep Saxena

IGC Proceedings (1977-2023)

Maize is the third most important cereal crop of the world and so also in India (Nadagoud et al., 2012). The diverse use of maize is rapidly increasing the demand of the crop and is replacing crops such as rice, sorghum, legumes and wheat in some areas (CIMMYT, 2013). Maize is largely treated as a single-purpose crop grown for grain, ignoring its potential for stover. Utilization of maize as dual purpose can meet the demand of both the poultry industry for grain and good quality stover for cattle feed. Maize stover the part of the crop left over after grain …

Development Of High Fodder-Yielding Sweet Sorghum Strain Madhura-2 (Nari-Ss-5) For Production Under Monsoon And Post-Monsoon Seasons, Vrijendra Singh, Chanda Nimbkar, C. S. Khore, Nandini Nimbkar

IGC Proceedings (1977-2023)

Sweet sorghum owing to its high fodder yielding ability coupled with sweet and juicy stalks is more often used as a fodder crop in India than for its intended use as a sugar or bio-energy crop (Nimbkar et al., 2010). In addition, fodder quality of sweet sorghum is as good as that of the fodder sorghums. Sweet sorghum is also produced as forage in China (Zhu, 1998) and USA (Suttie, 2000). Sorghum genotypes rich in sugar are reported to have a better quality of fodder than the regular genotypes with low sugar content (Singh and Katiyar, 2003). With its …

Stability Analysis In Dual Purpose Maize Line, R. P. Sah, Shahid Ahmed, D. R. Malaviya, Pradeep Saxena

IGC Proceedings (1977-2023)

Utilization of maize as dual purpose has increased the economic value of the crop. Dual purpose maize not only meets the demand of grain but also the stover for cattle. The genetic improvement in dual purpose maize should combine breeding for grain with specific needs of forage [Barrière et al., 2005]. Stability in dual purpose maize production is an essential component for sustainable production. The selection of dual type maize should be based on the genotype × environment interaction (GEI) and stability/ adaptability. Parametric models, such as Eberhart and Russell (1966) based on simple linear regression analysis are among …

Persistence Of Red Clover (Trifolium Pratense L.) Is Highly Related To Plant Population: Preliminary Studies On Isoflavones That Could Act As Insect Deterrents, Fernando Ortega, Andrés Quiroz, Leonardo Parra, Ana Mutis, Emilio Hormazabal, Muriel Melo

IGC Proceedings (1977-2023)

Red clover (Trifolium pratense L.) is a valuable legume in Chile whose importance is mainly as forage for animal and seed production. Although it is considered as perennial, its production declines after the second year of established due to a complex of multiple biotic and abiotic factors (Taylor and Quesenberry, 1996, Ortega et al., 2014); in Chile this is due mainly to the infestation by the red clover root borer Hylastinus obscurus (Coleoptera: Curculionidae). Currently there is no an efficient control method against this insect. Therefore, breeding cultivars that are less attractive to the root borer and the …

Root Architecture And Morphology Of Advanced Synthetic Lines Developed By The Red Clover Breeding Program Of Inia-Chile, Fernando Ortega, Luis Inostroza, Catalina Vasquez, Joel Ibañez, Hernán Acuña

IGC Proceedings (1977-2023)

Red clover (Trifolium pratense L.) is one of the most important forage legumes in temperate regions of the world. In Chile, it is the only forage species with a breeding program that has been continue over decades and produced commercial cultivars. Because of the good seed and forage production potential, red clover cultivars released by the INIA breeding program (INIA-BP) are commercialized both in Chile and abroad. The main limitation of the species worldwide is its low persistence, determined by the high plant mortality due to the deterioration of the main root and crown (Ortega et al., 2014). …

Plant Growth Regulators For Mitigating Water Stress In Cowpea, Syama S. Menon, K. E. Savithri

IGC Proceedings (1977-2023)

Water is becoming a scarce commodity for irrigation especially under the present changing climatic scenario. Water stress hampers important physiological and biochemical mechanisms leading to reduction in plant growth and yield. Studies revealed that the exogenous application of plant hormones has been found to alleviate the negative effects of various abiotic stresses. Cowpea, being a non-season bound crop, can be grown throughout the year and it performs well during summer season under irrigation, but water scarcity limits its area under cultivation. However, limited research works have been conducted to investigate the potential benefits of exogenous application of plant growth regulators …

Evaluation On Mengnong Clover No.1--China's First Variety Of Caucasian Clover (Trifolium Ambiguum Bieb.), Mingjiu Wang, Ying Zhou, Lijun He, Fan Huang, Jingli He

IGC Proceedings (1977-2023)

Many research reports about Caucasian clover (Trifolium ambiguum Bieb.) could be retrieved. A breeding research for Caucasian clover was started since 1996 in Inner Mongolia Agricultural University, China. The goal was to breed new varieties with strong cold resistance and drought, salt tolerance, as well as quick regenerating capacity after use. By December 2012, China's first new variety of Caucasian clover - "Mengnong clover No.1" (Mc No.1) was successfully registered by Forage Variety Approval Committee of Inner Mongolia Autonomous Region. Through a comparison test with red clover (T. pratense ) and white clover (T. repens), …