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Genetic variability in saffron {Croccus sativus L.) clones

机译:藏红花(Croccus sativus L.)克隆的遗传变异

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The present investigation was carried out at saffron research station pampore, SKUAST-Kashmir during 2010. Fifty clones were planted in a randomized bock design with three replications. Observations were recorded on 10 randomly selected and tagged competitive plants for 11 morphological, physiological, floral and corm traits viz, plant height (cm), number of radical leaves per plant, stomatal frequency, stomatal size (microns), chlorophyll content (%), number of flowers per corm, fresh pistil weightper corm (mg), pistil length (cm), stigma length (cm), number of daughter corms/ mother corm and average weight of daughter corms per mother corm (g). Genotypic differences were highly significant for all the tested traits. Components of variability indicated that a wide range of variability existed for number of flowers per corm (0.80-1.96), fresh pistil weight corm-1 (29.00-65.46), pistil length (4.05-5.83), plant height (23.20-35.60), stomatal frequency (11.20-16.40), stomatal size (microns) (21.03-51.18), number of daughter corms/ mother corm(3.46-9.30), average weight of daughter corms per mother corm (g) (3.04-10.60) and number of radical leaves per plant (15.40-26.60). Per se performance of genotypes under evaluation revealed a gross fresh pistil weight of 46.36mg corm1 from 1.26 flowers corm-1 resulting in 3 kg laccha ha~(-1) with planting density of 5 lakh corms ha~(-1) showing an increase of 26% over state average. Estimates of phenotypic variance were higher than the corresponding estimatesof genotypic variance, thereby revealing influence of environment in the expression of the traits studied. High values of heritability were recorded for all the traits.
机译:本研究于2010年在SKUAST-克什米尔(SKUAST-Kashmir)的藏红花研究站pampore进行。将50个克隆按随机复制的样本设计种植,重复3次。在10种随机选择和标记的竞争植物上观察到的观测值记录为11种形态,生理,花和球茎性状,即株高(cm),单株根生叶数,气孔频率,气孔大小(微米),叶绿素含量(%) ,每个球茎的花数,新鲜雌蕊的重量/球茎(mg),雌蕊长度(cm),柱头长度(cm),子球茎/母球茎的数量以及每个母球茎的子球茎的平均重量(g)。对于所有测试的性状,基因型差异都非常显着。变异性成分表明,对于每个球茎花数(0.80-1.96),新鲜雌蕊重量corm-1(29.00-65.46),雌蕊长度(4.05-5.83),株高(23.20-35.60)存在广泛的变异性。 ,气孔频率(11.20-16.40),气孔大小(微米)(21.03-51.18),子球茎/母球茎的数量(3.46-9.30),每个母球茎的子球茎的平均重量(g)(3.04-10.60)和每棵植物的基本叶数(15.40-26.60)。评估的基因型本身的表现表明,1.26朵花corm-1的新鲜雌蕊总重为46.36mg corm1,产生3 kg laccha ha〜(-1),种植密度为50万个cormsha〜(-1),显示出增加比全州平均水平高出26%。表型方差的估计高于相应的基因型方差的估计,从而揭示了环境对所研究性状表达的影响。记录了所有性状的高遗传力值。

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