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Accueil du site → Master → Inde → 2016 → EVALUATION OF GUM GUAR (Cyamopsis tetragonoloba L.) GENOTYPES FOR MORPHO-PHYSIOLOGICAL TRAITS AND GRAIN QUALITY

Acharya N G Ranga Agricultural University, Guntu (2016)

EVALUATION OF GUM GUAR (Cyamopsis tetragonoloba L.) GENOTYPES FOR MORPHO-PHYSIOLOGICAL TRAITS AND GRAIN QUALITY

ZUBY GOHAR ANSARI

Titre : EVALUATION OF GUM GUAR (Cyamopsis tetragonoloba L.) GENOTYPES FOR MORPHO-PHYSIOLOGICAL TRAITS AND GRAIN QUALITY

Auteur : ZUBY GOHAR ANSARI

Université de soutenance : Acharya N G Ranga Agricultural University, Guntur

Grade : Master of Science in Agriculture 2016

Résumé partiel
The present investigation was aimed at evaluation of gum guar (Cyamopsis tetragonoloba L.) genotypes for morpho-physiological traits and grain quality to identify superior guar genotypes for southern agro climatic region of AP. The guar varieties were tested under field conditions for morpho-physiological traits, yield attributes and biochemical parameters of seeds. The field experiment was conducted during kharif, 2015-16 at dry land farm, on sandy loam soils of Sri Venkateswara Agricultural College, Dry Land Farm, Tirupati of Acharya N.G. Ranga Agricultural University. The experiment was conducted as a Randomized Block Design, replicated thrice with 10 treatments The results revealed that all the morphological and physiological traits were varied significantly among ten guar genotypes except SLA and SLW. As semi-arid conditions prevail in southern agro-climatic zone, growth of all genotypes in terms of plant height and number of branches recorded higher values. RGC-936 recorded higher growth, whereas RGC-986 recorded lowest growth. Total plant dry matter accumulation and leaf area were significantly higher in RGG-13-4, RGC-936 and RGG-12-3 compared to all other genotypes, which denotes that they posses source strength. Dry matter at harvest showed positive correlation (R2 = 0.495) with seed yield. xv Physiological traits viz. CGR and NAR values varied significantly among the genotypes. RGG-13-4 and RGG-12-3 recorded higher CGR and NAR values. Among the leaf related physiological traits leaf area duration, leaf area index and total leaf chlorophyll content were also significantly higher in the two genotypes i.e. RGG-13-4 and RGG-12-3. In southern agroclimatic condition RGG-13-4 and RGG-12-3 recorded superior morphophysiological traits compared to all other genotypes. Leaf area index showed a positive correlation (R2 = 0.2534) with seed yield.

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