Enhancing Seed Set and Seed Yield of Sewan Grass (\u3cem\u3eLasiurus sindicus\u3c/em\u3e) through Physiological Approaches

Western part of Rajasthan, the Thar desert, is the most thickly populated desert of the World, possessing more than 55 million population each of human and livestock. Aberrant weather conditions and poor soil fertility pose major threats to arable crops cultivation. Livestock rearing is directly dependent on fodder availability but due to harsh agro-climatic conditions there is severe fodder scarcity. Lasiurus sindicus, perennial grass grown in hot and warm grassland climate thrives well under moisture stress on sandy plains, low dunes and hummocks of this region, receiving annual rainfall below 200 mm. For decades, these grasslands in turn supported an ever increasing livestock population in the Indian desert. Establishment of this grass is hampered by low seed availability because of its poor seed yield due to poor seed set. While sufficient literature is available on forage productivity of Sewan grass, however, information on seed set and seed yield production is lacking

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Not AvailableScientific laboratories and agricultural research stations in cold arid region of our country especially around Leh are still in infancy. Additionally, there are meagre reports on the understanding of different interventions that may have some potential to realize high agricultural yields in cold region. Therefore, initially we need to rely on results from hot arid regions. However, in order to enhance the probability of success, commonality between the two regions with emphasis on crop response at physiological plane, need to be thoroughly understood. This should be the basis of suggesting interventions that may be adopted as such or after fine tuning keeping in view the agricultural policy of the region and in consultation with the local farmers. Crop plants in the Indian cold arid region experiences both low temperature and water stress. Many agro-techniques related to genotype and fertility management along with use of growth regulators have been successfully adopted in hot arid region. The present article discusses some of these that may have relevance in cold arid region too. However, it is imperative to mention here that before suggesting blanket recommendations it shall be appropriate to arrive at a consensus decision after active participation of local farmers, agricultural scientists and policy makers so as to develop a holistic approach for the complete development of agriculture at Leh.Not Availabl

Book Title: Drought mitigation and Management

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Technical Bulletin on "Towards Managing Soil-Borne Plant Diseases in Arid Region"Technical Bulletin on "Towards Managing Soil-Borne Plant Diseases in Arid Region"Not Availabl

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Not AvailableLecture Note published in Compendium of Lectures In NATIONAL TRAINING COURSE ON Supply chain management and marketing of cereals, legumes and horticulture produce in Indian dry land organized from November 6-10, 2017.Not Availabl

In: XIIIth Agriculture Science Congress, BengaluruAt: Bengaluru, INDIA

Not AvailableClusterbean [Cyamopsis tetragonoloba (L.)Taub.], also known as guar, is a drought hardy leguminous crop cultivated mainly in arid and semi- arid region of India. It is one of the most important and potential vegetable cum industrial crop grown for vegetable and for endospermic gum. Assessment of variation among diverse genotypes helps in identification of parents for hybridization program. Twenty-one clusterbean genotypes were assessed for genetic divergence and correlation study of different morpho-physiological and yield attributing traits at ICAR-CAZRI Regional Research Station, Jaisalmer under arid rainfed condition during the kharif season of 2015. The experiment was laid out in randomized complete block design with three replications. Wide range of variability for plant height (39.5-64.6 cm), days to flower initiation (24-33 days), leaf area (190.6 – 400.9 cm2) and other yield attributing trait i.e., number of branches per plant (0.6-5.3), cluster per plant (5.8-14.9), pod per cluster (2.3-5.0), seed per pod (5.3-7.5), total dry matter (14.7-28.7g plant-1), 100 seed weight (2.09-3.79g) was observed. Physiological traits known to be related to crop performance under arid conditions like relative leaf water (RLWC) (70.5- 96.6%) and membrane stability index (3.8-47.1) also showed variation along with contents of different metabolites like total sugar (77.5- 159.5 mg/g fresh weight) and total phenol content (15.5 – 26.7 mg/g fresh wt.). In addition, high genotypic coefficient of variation (GCV) was recorded for RLWC (90.2), cluster per plant (78.8), number of branches per plant (70.4), phenol content (62.9), total plant dry wt.(61.6), plant height (85.2) and seed yield (53.7). High phenotypic coefficient of variation (PCV) was also recorded for these characters. High heritability was recorded in pod per cluster (55.3), cluster per plant (42.2), phenol (41.7), 100 seed weight (40.0), number of branches per plant (38.3), total plant dry weight (36.0) and seed yield (36.5). Significant positive correlation of plant dry weight (0.865 * *), cluster/plant (0.811 * *), pod/cluster(0.694 * *) and metabolite sugar (0.619 * *) and total phenol(0.659 * *) with seed yield further clearly identifies these parameters which could be used for future improvement programs of clusterbean.Not Availabl

Book Title: Climate Change and agriculture : Adaptation and Mitigation

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In: International Grassland Cogress 2015At: New Delhi, IndiaVolume: Paper ID: 414; Theme 2. Grassland production and utilization; Sub-theme 2.7. Seed production, storage, availability and quality

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In: First Asian Conference on water and land management for food and livelihood security At: IGKV, Raipur

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