توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱The Relationship between Corm Weight and Total Flower and Leaf Number in Saffron
نویسنده(ها): ، ،
اطلاعات انتشار: دومین سمپوزیوم بین المللی تکنولوژی و بیولوژی زعفران، سال
تعداد صفحات: ۵
Saffron (Crocus sativus) is an opportunity high valuable crop that is belonged to Iridaceae family. This crop is a perennial, herbaceous and stemless crop which comprehensive literatures on its agronomic aspects are scarce. In order to study the effects of corm weight on flower production of saffron two experiments were conducted during 1989 to 1992 and 1990 to 1992. For this purpose, A field was sown at 20 Sept. 1989 and flower number was recorded each day after first flowering day during 4 successive years (EXP1). Another field was sown in 20 Sept. 1990 and flower number was recorded same, during three successive years (EXP2). To study the effects of corm weight on saffron flower production, a wide range of corm weights were sown in 10 lines in each experiment. In addition to flower number, leaf number of corms during first three years, also, was recorded. Finally the relationships of corm weight with leaf number and flower number were studied. Our results indicated that although total flower number was increased with corm weight increasing in many cases, but the relationship between corm weight and total flower number was not considerable (R2EXP1=0.23, R2EXP2=0.2), but the relationship between corm weight and total leaf number was considerable (R2=0.53). Also, our results indicated that middle ranges of corm weights are most suitable weight for sowing and very small or very big corms are not satisfactory.<\div>

۲Effects ofpollinator line characteristics on quantity and quality of monogerm hybrid seed production in sugar beet (Beta vulgaris L.)
نویسنده(ها): ، ، ، ،
اطلاعات انتشار: International Journal of Plant Production، دهم،شماره۱(پياپي ۳۵)، Jan ۲۰۱۶، سال
تعداد صفحات: ۱۶
A two–year experiment was carried out to study the effects of pollinator line characteristics on the quantity and quality of monogerm hybrid seed production in sugar beet (Beta vulgaris L.) and select proper pollinator for five promising sugar beet cytoplasmic male sterile lines (CMSs) during 2012–2013 growing seasons. In this study, four diploid pollinator lines were crossed by five CMSs of sugar beet. It was proved that the concurrence of flowering time between female and male parents and pollen and pollination characters is essential for sugar beet hybrid seed production. Pollinator lines SHR01–P.12 and F–8662 had the largest number of pollens. The duration of pollination for SHR01–P.12 and F–8662 was longer than other pollinator lines.Moreover, the most synchronizationof male and female recipient flowers was related to the pollen donors of SHR01–P.12 and F–8662 by the pollen receptors of 7112×SB36 and SB37×28874. Hybrids derived from crosses of CMS lines with pollinator lines SHR01–P.12 and F–8662 had significantly less empty seed percentage and the highest raw seed yield, saleable seed yield, standard seed percentage, while hybrid seeds derived from crosses of pollinator line S1–88239 by CMS lines had the lowest quantity and quality. Our results showed that unlike CMS lines 7112*436, the CMS lines 7112×SB36 and SB37×28874 419*SB36 and 261 231 produced the highest number of seeds with the highest quality.
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