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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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Subject: Seed Science and Technology × Author: Vikash Kumar × End date: 2019 × Start date: 2010 ×
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    ThesisItemOpen Access
    Varietal characterization and seed vigour assessment in wheat (Triticum aestivum L.)
    (CCSHAU, 2016) Vikash Kumar; Punia, R.C.
    The present investigation “Varietal characterization and seed vigour assessment in wheat (Triticum aestivum L.)”was conducted with 28 wheat varieties. The study consists of characterization based on morphological and chemical methods and seed vigour studies of wheat varieties. The study revealed that morphological characters viz., foliage colour, flag leaf colouration of auricles, plant flag leaf attitude, flag leaf width, flag leaf length, ear density, ear length, presence of awns, awn length, awn colour, lower glume shoulder shape, lower glume beak length, lower glume beak shape, peduncle length, peduncle attitude and rachis brittleness were the most important diagnostic characters which provide a excellent system of variety identification in wheat. The characters like ear shape, awn attitude, outer glume pubescence, lower glume shape in profile was also helpful in characterization of wheat variety. The waxiness of plant was not observed as a reliable source of characterization as influenced by environmental condition as rain, temperature irrigation etc. The study also concluded that seed characters of wheat seed viz., grain colour, grain shape, grain crease, grain germ width, grain brush hair length and grain weight (1000 grains) were also useful in characterization of varieties. Characters’ like coleoptile anthocynain colouration, waxiness of plant, presence of awns, colour of awns, ear colour, grain crease, grain hardness, anther extrusion and anther colour are some characters which do not show any variation and in all 28 varieties. However, these characters may help for differentiation of other wheat varieties. Some varieties have specific character thorough which these can be identified easily like WH 1105 has pink anthocyanin flag leaf colouration of auricles, C 306 (118 cm) and WH 1138 has crooked type peduncle attitude. Among the chemical tests Phenol test grouped variety into three distinct groups viz. Light brown (5 varieties), Brown (7 varieties) and Dark brown (16 varieties).With the help of modified phenol test these varieties were further sub grouped. These tests clearly differentiated one group variety to another groups on the basis of seed coat colour. Among 28 varieties K 307, Raj 3765, HD 2733, PBW 550, PBW 509, WH 1063, WH 1025, WH 730 and WH 711 show superiority for almost all viability and vigour parameters. Some tests like standard germination, accelerated ageing test, tetrazolium test and electrical conductivity were found most suitable methods for the prediction of vigour and seedling establishment. Some varieties like C 306, PBW 590 and PBW 373 showed poor performance for almost all viability and vigour parameters whereas variety DPW 71 showed very good performance for vigour parameters. Among vigour parameters standard germination showed significant positive correlation with tetrazolium test, electrical conductivity, accelerated ageing test, pH exudates test, whereas, it showed negative correlation with electrical conductivity. Seedling establishment also showed significantly positive correlation with accelerated aging test, electrical conductivity test, standard germination, pH exudates test and tetrazolium test.