In Himachal Pradesh-India, Apple is mainly grown under rainfed conditions. Moreover, the rainfall is not well distributed throughout the year. Most of the rainfall is received during the monsoon and winter seasons and there is very less or no rains during critical periods of growth and development. Thus, the soil moisture generally remains very low during the summer months and a water stress condition develops. This study was undertaken to identify morphological and physio-biochemical changes in one-year-old young grafted apple seedling plants of two varieties i.e. Super Chief and Red chief (Malus×domestica Borkh) under 15 and 30 days of induced water stress followed by 0.05 ppm brassinosteroid and 0.1 ppm brassinosteroid under pot culture study. The brassinosteroid regulates a broad spectrum of plant growth and physio-biochemical processes. One of the most promising roles of brassinosteroid is their ability to confer resistance to a wide array of abiotic stresses. In my study, the maximum reduction in growth and physio-biochemical traits was registered by plants subjected to 30 of water stress as compared to 15 days of water stress than control for both cultivars. However, brassinosteroid at both concentrations could help in maintaining vital growth and physio-biochemical processes under water stress conditions. Foliar spray of brassinosteroid (0.05 ppm) prior to imposition of stress can pave the way to minimize the deleterious effects of water stress on apple plants.
Coriander (Coriandrum sativum L.) is an annual herbaceous plant commonly known as Cilantro or Dhania, belonging to family Apiaceae (Umbelliferae), it is a powerful herb with many health benefits.It is a dual purpose crop grown for its aromatic leaves and cremocarpic seeds, which are extensively used as a spice and food flavouring agent. Plant growth is seriously affected by abiotic stresses and drought is one of the most important limiting factors. Drought stress during earlyreproductive growth stage usually reduces the seed yield and seed quality. To assess the effect of drought stress on seed yield and seed quality of coriander, the experiment was conducted in green house in plastic pots at Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.) during the Rabi season of 2012-13. Coriander cv. Solan Selection was used as a test crop. There were four treatments of Water stress i.e. T 1-Control,T 2-25%, T 3-50%, and T4-75% Water deficit imposed at flower forming phase for 15 days.The treatments were arranged in a design CRD (Completely Randomized Design) with fourreplications. Data were recorded and results indicated the significant reduction in plant height stress index, dry matter index, biological yield, number of seeds per plant, harvest index (HI) and yield stability ratio and also observed per cent reduction in 1000-seed weight ,seed moisture content and germination percentage. On other hand there where per cent increase in solute leakage, mean germination time. Biological yield, dry matter index, harvest index (HI)
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